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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#41
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On Feb 12, 2:23*pm, Sylvia Else wrote:
On 12/02/2011 3:03 PM, atec77 wrote: On 12/02/2011 1:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? I can think of another use for a bucket in sylivas case Yes, I can use it to throw-up into whenever I imagine your face. Sylvia. Classic comeback Sylvia ! AAA+ |
#42
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
Sylvia Else wrote:
On 12/02/2011 2:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? The fan is too big for a plastic bucket. I considered cardboard but it was far from clear to me that it was going to be strong enough without bracing that would further complicate the task. This isn't a research project. I was looking for a solution that would definitely work, and be robust. Sylvia. Would this work? http://www.fanmanufacturers.com/imag...l_fan_img4.jpg |
#43
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On Feb 12, 2:22*pm, Sylvia Else wrote:
On 12/02/2011 2:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia *wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window.. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? The fan is too big for a plastic bucket. I considered cardboard but it was far from clear to me that it was going to be strong enough without bracing that would further complicate the task. This isn't a research project. I was looking for a solution that would definitely work, and be robust. Sylvia. Some of those larger black plastic pot plant containers might be big enough, also are sturdy, UV resistant (since used outdoors in a garden). Cut a piece of plywood to fit the window gap, cut a hole in the ply suit the diameter of the pot, (and at the right height to suit the fan) cut the bottom out of the pot, and screw the pot to the ply. This might make a big enough, and very strong duct for relatively little cost. IIRC those pots are sturdy enough so that they aren't likely to flap around in the wind. You can probably paint them any colour you like, if you don't like black colour. You will probably have to paint the plywood on the outside in order to avoid it rotting from exposure to the elements. and most have a thick rim that you could scre |
#44
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 12/02/2011 8:28 AM, fritz wrote:
"Sylvia wrote in message ... On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message ... On 10/02/2011 11:23 AM, Metro wrote: "Sylvia wrote in message ... I had occasion to dismantle a cheap pedestal fan the other day (Coles Home Collection). It hadn't failed, but I wanted to see how it was wired up (that's another story). The cover to the button panel was held in place by four screws which were identical except that two were philips head type, and the other two had a triangular socket in the head. I have bits to cope with most things I've encountered, but not those. What's the point? Are they worried about competition for repairing these $10 fans? Do consumers regularly electrocute themselves by taking fans apart without knowing what they're doing? Sylvia. They are only a tamperproof head of which there are various and easily available.. Wait until you come across a coffin head screw.I believe the reason for using them is that some countries prevent the dismantle of an appliance without the use of a tool or special tool so this way all fields are covered in one assembly. Did you find out how it worked. They are made to break. Best way to keep them longer is to keep the Blades clean and lubricate the bearings NOT with WD40 or the like. As I said, it hadn't broken. I was actually trying to figure out which wire was which leading to the induction motor. I had in mind making it run backwards. Aerofoils don't perform as well backwards, but they do perform. However, on further consideration I realised that the fan blades would be aerodynamically stalled if the fan ran backwards, with the result that it would probably not work much at all. If the fan is symetrical - snap off pairs of opposing blades. That's not going to fix the problem of the blades being stalled. What I would really need to do is fit the one-piece fan blade assembly on back to front (as well as reversing the motor), but the fan blade assembly is not designed to be attached the other way around. Sylvia. Might sound silly, but cant the entire fan head (including motor) be rotated 180 degrees, or do you want the air intake without the motor in the way ? The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air flow. A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. Stick the fan outside, blow the air inside. Lateral thinking is absent in the female of the species. No worries, though it's 10' above the ground. I'll just cantelever out a shelf, and a shelter (fan's not waterproof, and weather forecasts are not sufficiently reliable), get a sparky in to do the weatherproof electrics (which I could do myself but am not legally permitted to in this Australian nanny state), and it'll be fine. Sylvia. |
#45
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 12/02/2011 3:48 PM, F Murtz wrote:
Sylvia Else wrote: On 12/02/2011 2:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? The fan is too big for a plastic bucket. I considered cardboard but it was far from clear to me that it was going to be strong enough without bracing that would further complicate the task. This isn't a research project. I was looking for a solution that would definitely work, and be robust. Sylvia. Would this work? http://www.fanmanufacturers.com/imag...l_fan_img4.jpg Looks just the job. Do they come with a through glass mounting kit? Sylvia. |
#46
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 12/02/2011 3:51 PM, kreed wrote:
On Feb 12, 2:22 pm, Sylvia wrote: On 12/02/2011 2:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? The fan is too big for a plastic bucket. I considered cardboard but it was far from clear to me that it was going to be strong enough without bracing that would further complicate the task. This isn't a research project. I was looking for a solution that would definitely work, and be robust. Sylvia. Some of those larger black plastic pot plant containers might be big enough, also are sturdy, UV resistant (since used outdoors in a garden). Cut a piece of plywood to fit the window gap, cut a hole in the ply suit the diameter of the pot, (and at the right height to suit the fan) cut the bottom out of the pot, and screw the pot to the ply. This might make a big enough, and very strong duct for relatively little cost. IIRC those pots are sturdy enough so that they aren't likely to flap around in the wind. You can probably paint them any colour you like, if you don't like black colour. It's an interesting idea. I'll have to look at what size pots are available (and how much they weigh) next time I'm at the hardware store. Mind you, plywood doesn't come cheap Sylvia. |
#47
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 12/02/2011 12:18 AM, Sylvia Else wrote:
On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message ... On 10/02/2011 11:23 AM, Metro wrote: "Sylvia wrote in message ... I had occasion to dismantle a cheap pedestal fan the other day (Coles Home Collection). It hadn't failed, but I wanted to see how it was wired up (that's another story). The cover to the button panel was held in place by four screws which were identical except that two were philips head type, and the other two had a triangular socket in the head. I have bits to cope with most things I've encountered, but not those. What's the point? Are they worried about competition for repairing these $10 fans? Do consumers regularly electrocute themselves by taking fans apart without knowing what they're doing? Sylvia. They are only a tamperproof head of which there are various and easily available.. Wait until you come across a coffin head screw.I believe the reason for using them is that some countries prevent the dismantle of an appliance without the use of a tool or special tool so this way all fields are covered in one assembly. Did you find out how it worked. They are made to break. Best way to keep them longer is to keep the Blades clean and lubricate the bearings NOT with WD40 or the like. As I said, it hadn't broken. I was actually trying to figure out which wire was which leading to the induction motor. I had in mind making it run backwards. Aerofoils don't perform as well backwards, but they do perform. However, on further consideration I realised that the fan blades would be aerodynamically stalled if the fan ran backwards, with the result that it would probably not work much at all. If the fan is symetrical - snap off pairs of opposing blades. That's not going to fix the problem of the blades being stalled. What I would really need to do is fit the one-piece fan blade assembly on back to front (as well as reversing the motor), but the fan blade assembly is not designed to be attached the other way around. Sylvia. Might sound silly, but cant the entire fan head (including motor) be rotated 180 degrees, or do you want the air intake without the motor in the way ? The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air flow. A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I'm thinking of using box fans instead. Sylvia. Sylvia's house where the fans don't blow, they suck. |
#48
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
Sylvia Else wrote:
On 12/02/2011 8:28 AM, fritz wrote: "Sylvia wrote in message ... On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message ... On 10/02/2011 11:23 AM, Metro wrote: "Sylvia wrote in message ... I had occasion to dismantle a cheap pedestal fan the other day (Coles Home Collection). It hadn't failed, but I wanted to see how it was wired up (that's another story). ... Curiosity, good! I'd hire you as an apprentice at my pinball shop. That's not going to fix the problem of the blades being stalled. Not sure about 'stalled' here, unless the gearing is designed to not allow reverse direction I am having trouble understanding the problem here. What I would really need to do is fit the one-piece fan blade assembly on back to front (as well as reversing the motor), but the fan blade assembly is not designed to be attached the other way around. Sylvia. Might sound silly, but cant the entire fan head (including motor) be rotated 180 degrees, or do you want the air intake without the motor in the way ? The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air flow. A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. Stick the fan outside, blow the air inside. Lateral thinking is absent in the female of the species. (to previous poster) Right, no lateral thinking in the female of the species? Explain that to Madame Curie, Margaret Thatcher (OK, not a great example), my daughter (5 year physics and math major), and so on... No worries, though it's 10' above the ground. I'll just cantelever out a shelf, and a shelter (fan's not waterproof, and weather forecasts are not sufficiently reliable), get a sparky in to do the weatherproof electrics (which I could do myself but am not legally permitted to in this Australian nanny state), and it'll be fine. Sylvia. You can't get a permit to do your own home wiring in Australia? Pity. Here in most of Canada - as long as the city (or relevant jurisdiction) electrical inspector OKs the job (permit required) - then the handy homeowner is permitted to do their own work - obviously one does it to the electrical code. I did quite a bit of improvements to my previous home, the inspector came in, examined a few random spots (opened sockets, boxes, etc) and like what he saw and signed off on the job. If he wasn't happy I would have had to open every box to show the job. This inspection was before I put the wallboard up of course! John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#49
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 12/02/2011 8:15 PM, John Robertson wrote:
You can't get a permit to do your own home wiring in Australia? Nup. Well, not unless you become a professional electrician, which requires an apprenticeship, AND pay the annual licence fee. Pity. Here in most of Canada - as long as the city (or relevant jurisdiction) electrical inspector OKs the job (permit required) - then the handy homeowner is permitted to do their own work - obviously one does it to the electrical code. I did quite a bit of improvements to my previous home, the inspector came in, examined a few random spots (opened sockets, boxes, etc) and like what he saw and signed off on the job. If he wasn't happy I would have had to open every box to show the job. This inspection was before I put the wallboard up of course! Here in Aussieland, you cannot so much as replace a light switch with an identical model. You can be on a remote farm, 100s of kilometers from anywhere, and if a lampholder breaks, you have to call in a sparky. Sylvia. |
#50
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 2011-02-12, Sylvia Else wrote:
It's an interesting idea. I'll have to look at what size pots are available (and how much they weigh) next time I'm at the hardware store. Mind you, plywood doesn't come cheap If you want to save money go second-hand. eg: the powdercoated zinc-alume treated sheet steel front off a dead washing machine can probably had for a few bucks (if not less) from a scrap-metal place , recycle market, or appliance repairer. A demolition yard will probably have used flooring ply "cheap". 19mm (typical flooring thickness) is probably overkill strength-wise but should fit the winbdow track ok. Another thing you can do is ask in the wood part of the hardware shop for a coversheet. Coversheets are the factory soiled sheets of ply (or mdf etc) that are used to protect the top and bottom sheets in the stack during shipping. 2.4x1.2m so youll need be prepared to transport something that big. they will usually be significantly cheaper as they can't be used for the normal purpose of the product. -- š‚šƒ 100% natural --- news://freenews.netfront.net/ - complaints: --- |
#51
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On Feb 12, 7:15*pm, John Robertson wrote:
Sylvia Else wrote: On 12/02/2011 8:28 AM, fritz wrote: "Sylvia *wrote in message ... On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia * wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia * * wrote in message ... On 10/02/2011 11:23 AM, Metro wrote: "Sylvia * * *wrote in message ... I had occasion to dismantle a cheap pedestal fan the other day (Coles Home Collection). It hadn't failed, but I wanted to see how it was wired up (that's another story). ... Curiosity, good! I'd hire you as an apprentice at my pinball shop. That's not going to fix the problem of the blades being stalled. Not sure about 'stalled' here, unless the gearing is designed to not allow reverse direction I am having trouble understanding the problem here. What I would really need to do is fit the one-piece fan blade assembly on back to front (as well as reversing the motor), but the fan blade assembly is not designed to be attached the other way around. Sylvia. Might sound silly, but cant the entire fan head (including motor) be rotated 180 degrees, or do you want the air intake without the motor in the way ? The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air flow. A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. Stick the fan outside, blow the air inside. Lateral thinking is absent in the female of the species. (to previous poster) Right, no lateral thinking in the female of the species? Explain that to Madame Curie, Margaret Thatcher (OK, not a great example), my daughter (5 year physics and math major), and so on... We could also mention Anna Bligh, Christina Kennealy, Julia Gillard if you want the opposite of that. No worries, though it's 10' above the ground. I'll just cantelever out a shelf, and a shelter (fan's not waterproof, and weather forecasts are not sufficiently reliable), get a sparky in to do the weatherproof electrics (which I could do myself but am not legally permitted to in this Australian nanny state), and it'll be fine. Sylvia. You can't get a permit to do your own home wiring in Australia? Pity. Here in most of Canada - as long as the city (or relevant jurisdiction) electrical inspector OKs the job (permit required) - then the handy homeowner is permitted to do their own work - obviously one does it to the electrical code. I did quite a bit of improvements to my previous home, the inspector came in, examined a few random spots (opened sockets, boxes, etc) and like what he saw and signed off on the job. If he wasn't happy I would have had to open every box to show the job. This inspection was before I put the wallboard up of course! John :-#)# Not here, it is a closed (union) shop - with "jobs for the boys" This has been going on for the past 40 odd years (in QLD) that I am aware of, and probably longer. Having said that, electrical fittings are readily available for sale to the public through pretty much all hardware stores, as well as a more limited range in many supermarkets (plugs, power sockets etc) I know of one totally unlicensed electrician locally who openly does work for people and commercial premises (for cash in hand). Has the attitude "have no assets that can be taken, so cant be sued". There is 240/415v involved whereas Canada is 120/240 IIRC. -- * * (Please post followups or tech enquiries to the newsgroup) * John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 * Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) * * * * * * * * * * *www.flippers.com * * * *"Old pinballers never die, they just flip out." |
#52
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
atec77 wrote:
On 12/02/2011 7:15 PM, John Robertson wrote: Sylvia Else wrote: On 12/02/2011 8:28 AM, fritz wrote: "Sylvia wrote in message ... On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message ... On 10/02/2011 11:23 AM, Metro wrote: "Sylvia wrote in message ... I had occasion to dismantle a cheap pedestal fan the other day (Coles Home Collection). It hadn't failed, but I wanted to see how it was wired up (that's another story). ... Curiosity, good! I'd hire you as an apprentice at my pinball shop. That's not going to fix the problem of the blades being stalled. Not sure about 'stalled' here, unless the gearing is designed to not allow reverse direction I am having trouble understanding the problem here. What I would really need to do is fit the one-piece fan blade assembly on back to front (as well as reversing the motor), but the fan blade assembly is not designed to be attached the other way around. Sylvia. Might sound silly, but cant the entire fan head (including motor) be rotated 180 degrees, or do you want the air intake without the motor in the way ? The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air flow. A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. Stick the fan outside, blow the air inside. Lateral thinking is absent in the female of the species. (to previous poster) Right, no lateral thinking in the female of the species? Explain that to Madame Curie, Margaret Thatcher (OK, not a great example), my daughter (5 year physics and math major), and so on... No worries, though it's 10' above the ground. I'll just cantelever out a shelf, and a shelter (fan's not waterproof, and weather forecasts are not sufficiently reliable), get a sparky in to do the weatherproof electrics (which I could do myself but am not legally permitted to in this Australian nanny state), and it'll be fine. Sylvia. You can't get a permit to do your own home wiring in Australia? Not a chance and with good reason Pity. Here in most of Canada - as long as the city (or relevant jurisdiction) electrical inspector OKs the job (permit required) - then the handy homeowner is permitted to do their own work - obviously one does it to the electrical code. I did quite a bit of improvements to my previous home, the inspector came in, examined a few random spots (opened sockets, boxes, etc) and like what he saw and signed off on the job. If he wasn't happy I would have had to open every box to show the job. This inspection was before I put the wallboard up of course! We have a system of indentured trades people , we also have 240ac and 415 ac electrical systems and the average home is fused to 120 amps or more at the fuse box with individual power sockets to 10 amp@ 240v , you generally only get once mistake at those levels hence the inability to do your own work The same with telecommunications equipment you have to use a trady or suffer huge fines , thanks mainly to a few home installers doing serious damage to local exchanges over the years John :-#)# Work by non trades people is not as dangerous as some people seem to think.If you take the thousands and thousands of electrical items sold in supermarkets etc the vast majority of which are installed illegally by non licensed people and compare statistically the number of incidents this causes you may realize it is not the problem alarmists may think. If it were such a problem the powers that be would stop the non licensed obtaining them. |
#53
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 13/02/2011 12:10 AM, atec77 wrote:
On 12/02/2011 9:49 PM, F Murtz wrote: atec77 wrote: On 12/02/2011 7:15 PM, John Robertson wrote: Sylvia Else wrote: On 12/02/2011 8:28 AM, fritz wrote: "Sylvia wrote in message ... On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message ... On 10/02/2011 11:23 AM, Metro wrote: "Sylvia wrote in message ... I had occasion to dismantle a cheap pedestal fan the other day (Coles Home Collection). It hadn't failed, but I wanted to see how it was wired up (that's another story). ... Curiosity, good! I'd hire you as an apprentice at my pinball shop. That's not going to fix the problem of the blades being stalled. Not sure about 'stalled' here, unless the gearing is designed to not allow reverse direction I am having trouble understanding the problem here. What I would really need to do is fit the one-piece fan blade assembly on back to front (as well as reversing the motor), but the fan blade assembly is not designed to be attached the other way around. Sylvia. Might sound silly, but cant the entire fan head (including motor) be rotated 180 degrees, or do you want the air intake without the motor in the way ? The application is to suck cool air in through an open window at night. During the recent heat wave, it was noticeable that even though the temperature outside drops at night, the temperature of the house doesn't drop that much. The problem is lack of air flow. A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. Stick the fan outside, blow the air inside. Lateral thinking is absent in the female of the species. (to previous poster) Right, no lateral thinking in the female of the species? Explain that to Madame Curie, Margaret Thatcher (OK, not a great example), my daughter (5 year physics and math major), and so on... No worries, though it's 10' above the ground. I'll just cantelever out a shelf, and a shelter (fan's not waterproof, and weather forecasts are not sufficiently reliable), get a sparky in to do the weatherproof electrics (which I could do myself but am not legally permitted to in this Australian nanny state), and it'll be fine. Sylvia. You can't get a permit to do your own home wiring in Australia? Not a chance and with good reason Pity. Here in most of Canada - as long as the city (or relevant jurisdiction) electrical inspector OKs the job (permit required) - then the handy homeowner is permitted to do their own work - obviously one does it to the electrical code. I did quite a bit of improvements to my previous home, the inspector came in, examined a few random spots (opened sockets, boxes, etc) and like what he saw and signed off on the job. If he wasn't happy I would have had to open every box to show the job. This inspection was before I put the wallboard up of course! We have a system of indentured trades people , we also have 240ac and 415 ac electrical systems and the average home is fused to 120 amps or more at the fuse box with individual power sockets to 10 amp@ 240v , you generally only get once mistake at those levels hence the inability to do your own work The same with telecommunications equipment you have to use a trady or suffer huge fines , thanks mainly to a few home installers doing serious damage to local exchanges over the years John :-#)# Work by non trades people is not as dangerous as some people seem to think.If you take the thousands and thousands of electrical items sold in supermarkets etc the vast majority of which are installed illegally by non licensed people and compare statistically the number of incidents this causes you may realize it is not the problem alarmists may think. One death or injury is to many and considering some of the incredibly stupid electrical work getting done I cant agree We could allow people to attend courses, and get certificates allowing them to do home electrical work. How hard can it be? We live in a world full of dangers. Electricity is nothing special in that respect. Sylvia. |
#54
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On Feb 12, 7:54Â*pm, Jasen Betts wrote:
On 2011-02-12, Sylvia Else wrote: It's an interesting idea. I'll have to look at what size pots are available (and how much they weigh) next time I'm at the hardware store.. Mind you, plywood doesn't come cheap If you want to save money go second-hand. Â*eg: the powdercoated zinc-alume treated sheet steel front off a dead washing machine can probably had for a few bucks (if not less) from a scrap-metal place , recycle market, or appliance repairer. A demolition yard will probably have used flooring ply "cheap". 19mm (typical flooring thickness) is probably overkill strength-wise but should fit the winbdow track ok. Another thing you can do is ask in the wood part of the hardware shop for a coversheet. Â*Coversheets are the factory soiled sheets of ply (or mdf etc) that are used to protect the top and bottom sheets in the stack during shipping. 2.4x1.2m so youll need be prepared to transport something that big. they will usually be significantly cheaper as they can't be used for the normal purpose of the product. -- š‚šƒ 100% natural --- news://freenews.netfront.net/ - complaints: --- There is plenty of wood in various forms at the rubbish dump sale shop locally - cheap, including old doors, offcuts etc If you think about it, you only need 4 strips a few inches wide, remember that most of the centre will be cut out for the fan If you were that hard up, and were local, I would cut out the thing for you myself for nothing, as I have plenty of bits here that could be used. |
#55
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
Sylvia Else wrote:
On 12/02/2011 12:28 PM, kreed wrote: On Feb 12, 11:19 am, Sylvia wrote: On 12/02/2011 11:54 AM, kreed wrote: On Feb 12, 10:42 am, wrote: On 2/11/2011 8:18 AM, Sylvia Else wrote: On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message n I'm thinking of using box fans instead. Sylvia. Don't you have window fans where you live? http://www.target.com/Lasko-Electric...ndow/dp/B001VE... You can get them here (USA) for $20 JC Never seen them, but they would be perfect for what Sylvia wants to achieve I think. They are on Ebay, but all from the USA. I found Lasko's web site. None of the instruction sheets (which I thought might specify the power) seem to exist. So I emailed the webadmin whose address was given on the web site. That email address appears not to exist either (it bounced). I hope they're better at making fans than they are at maintaining web sites. Sylvia. These fans are also available on Ebay - search "window fan" and "outside australia" and there are several identical models. The sellers might be able to help ? I presume I'd need to buy a step down transformer, and then there's the issue of the different frequency. Sylvia. Frequency difference only means the fans would spin a bit slower @ 50Hz than at 60Hz. About 16% (1/6th) slower...not enough to matter I'm sure - just turn it up one speed. John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#56
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
Sylvia Else wrote:
On 12/02/2011 3:51 PM, kreed wrote: On Feb 12, 2:22 pm, Sylvia wrote: On 12/02/2011 2:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? The fan is too big for a plastic bucket. I considered cardboard but it was far from clear to me that it was going to be strong enough without bracing that would further complicate the task. This isn't a research project. I was looking for a solution that would definitely work, and be robust. Sylvia. Some of those larger black plastic pot plant containers might be big enough, also are sturdy, UV resistant (since used outdoors in a garden). Cut a piece of plywood to fit the window gap, cut a hole in the ply suit the diameter of the pot, (and at the right height to suit the fan) cut the bottom out of the pot, and screw the pot to the ply. This might make a big enough, and very strong duct for relatively little cost. IIRC those pots are sturdy enough so that they aren't likely to flap around in the wind. You can probably paint them any colour you like, if you don't like black colour. It's an interesting idea. I'll have to look at what size pots are available (and how much they weigh) next time I'm at the hardware store. Mind you, plywood doesn't come cheap Sylvia. Is "winge" the Australian rendition of "whinge"? Just asking as Folks from the USA spell colour or neighbour in an interesting way and I figured Downunders may take similar liberties... (ducking) John ;-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#57
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On 2/11/2011 8:19 PM, Sylvia Else wrote:
On 12/02/2011 11:54 AM, kreed wrote: On Feb 12, 10:42 am, wrote: On 2/11/2011 8:18 AM, Sylvia Else wrote: On 11/02/2011 11:56 PM, kreed wrote: On Feb 11, 9:20 pm, Sylvia wrote: On 11/02/2011 8:11 AM, ian field wrote: "Sylvia wrote in message n I'm thinking of using box fans instead. Sylvia. Don't you have window fans where you live? http://www.target.com/Lasko-Electric...ndow/dp/B001VE... You can get them here (USA) for $20 JC Never seen them, but they would be perfect for what Sylvia wants to achieve I think. They are on Ebay, but all from the USA. I found Lasko's web site. None of the instruction sheets (which I thought might specify the power) seem to exist. So I emailed the webadmin whose address was given on the web site. That email address appears not to exist either (it bounced). I hope they're better at making fans than they are at maintaining web sites. Sylvia. The one I have (Lasko) is 0.85A 120VAC JC |
#58
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
On Feb 13, 3:54*am, John Robertson wrote:
Sylvia Else wrote: On 12/02/2011 3:51 PM, kreed wrote: On Feb 12, 2:22 pm, Sylvia *wrote: On 12/02/2011 2:43 PM, Jasen Betts wrote: On 2011-02-11, Sylvia * *wrote: A conventional pedestal fan blows in such a direction that when it's placed as near as possible to a window, the fan blades are still quite a way from the cool air, and so the result is not as effective as it might be. If I could reverse the direction of flow, then I could also turn then fan around, so that the blades would be much closer to the window. I considered simply building a duct, but the cost of materials was excessive. I guess you didn't consider cardboard and packing tape then or a cheap plastic bucket? The fan is too big for a plastic bucket. I considered cardboard but it was far from clear to me that it was going to be strong enough without bracing that would further complicate the task. This isn't a research project. I was looking for a solution that would definitely work, and be robust. Sylvia. Some of those larger black plastic pot plant containers might be big enough, also are sturdy, UV resistant (since used outdoors in a garden). Cut a piece of plywood to fit the window gap, cut a hole in the ply suit the diameter of the pot, (and at the right height to suit the fan) cut the bottom out of the pot, and screw the pot to the ply. This might make a big enough, and very strong duct for relatively little cost. *IIRC those pots are sturdy enough so that they aren't likely to flap around in the wind. You can probably paint them any colour you like, if you don't like black colour. It's an interesting idea. I'll have to look at what size pots are available (and how much they weigh) next time I'm at the hardware store.. Mind you, plywood doesn't come cheap Sylvia. Is "winge" the Australian rendition of "whinge"? Just asking as Folks from the USA spell colour or neighbour in an interesting way and I figured Downunders may take similar liberties... (ducking) John ;-#)# -- * * (Please post followups or tech enquiries to the newsgroup) * John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 * Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) * * * * * * * * * * *www.flippers.com * * * *"Old pinballers never die, they just flip out." No, its the same here, its just a spelling error |
#59
Posted to aus.electronics,sci.electronics.repair
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Nuisance fastners - winge
Is "winge" the Australian rendition of "whinge"? Just asking as Folks from the USA spell colour or neighbour in an interesting way and I figured Downunders may take similar liberties... (ducking) John ;-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." No, its the same here, its just a spelling error Ya right of course, although in this case more of a "whine" :-) Rheilly P |
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