Home |
Search |
Today's Posts |
![]() |
|
Woodworking (rec.woodworking) Discussion forum covering all aspects of working with wood. All levels of expertise are encouraged to particiapte. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#121
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
I have dealt with many three phase and single phase dynamic braking
circuits, mostly in the 1-5 hp range and the number of phases on the motor makes no difference, for braking ability. The three phase braking circuits are more costly due to more contacts needed to switch the load to the brake circuits. A simple SPDT switch will do for a single phase saw. The units I dealt with in 2000 ampere tapchangers typically used DC injection (some were friction and some regenerative) and were set to time out and allow the mechanism to coast onto a "top dead centre" position ready for the next cycle. This could be made to stop "on the spot" if adjusted this way but gave drift back to the brake initiating cam problems, at times so the coast in was necessary. This would not be desirable to stop a machine for a human usage. wrote in message ... Nah, there's nothing special about a three-phase motor that allows dynamic braking. It is totally cost prohibitive for a single phase motor. |
#122
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? If not, or for those unaware, it is a section of cord with a box with a brain inline that allows a tool with a regular mechanical switch to operate normally, until the power to the tool is interupted, either by the plug getting bumped, the main power cutting out, or a tripped breaker or fault protector. At that point, even if the power is out only for an instant, the tool will not be given power back by the brain box, until a reset button on the brain it pressed. Not nearly as expensive as magnetic starters, easy to use, and give another layer of safety. Plus, it satisfies the requirements that may apply to a shop that is inspected by OSHA or insurance inspectors. Some products are GFCI's that require pressing the reset button before it will come back on after power is interupted, and some only mimic a magnetic starter. Seems as though it was in the mid 30 dollar price range, when I looked at them a couple years ago. -- Jim in NC |
#123
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Tue, 10 Aug 2010 13:39:22 -0600, "Max"
wrote: "Jack Stein" wrote in message Geez, no guard, no splitter, no disconnect... Thrill a minute... Keeps life interesting. It keeps you paying attention to what you're doing. Dina is a guardless, gaping, disconnect-free gal, too. I guess I'll be the first here to try out Grizz' G0715. |
#124
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Tue, 10 Aug 2010 23:26:09 -0400, "Josepi" wrote:
Maybe stick to valid topics? Wow, Captian PKB speaks. BTW, Is this supposed to make sense in this thread? wrote in message .. . None. I always use my real name. I do have two accounts, one Google (used when no NNTP access is possible), one not On Tue, 10 Aug 2010 16:55:54 -0400, "Josepi" wrote: How many different nicknames do you go by in these groups? . wrote in message ... Which drugs are you on today? On Aug 10, 8:35 am, "Josepi" wrote: Now that would depend on the area you are metered by. |
#125
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
J. Clarke wrote:
If it's that untrustworthy something's wrong. The factory fence on my 500 buck Ridgid is accurate and repeatable to the limit of my ability to read the markings. Took me a while to learn to trust it though. As well with my Craftsman fence - which is the same fence used on the Ridgid. It is dead nut - every time. Like John, I had to learn to trust it, but now - I don't even think about it. Others may fear it's not accurate, and I can understand that, since as I said - I had to learn to trust it. But... after many repeated measurements, the thing has proven itself. If the saw gets moved around on the back of a truck, the way contractor saws are expected to be used, then the fence should be adjusted every time the saw is set up at a new job site, which should take under a minute. Things carried on a truck do get knocked. And if it just gets moved around in a garage or in a basement - no need to worry. -- -Mike- |
#126
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
I don't know. Why did you bring up drugs and attempt to roll the topic?
wrote in message ... Wow, Captian PKB speaks. BTW, Is this supposed to make sense in this thread? On Tue, 10 Aug 2010 23:26:09 -0400, "Josepi" wrote: Maybe stick to valid topics? wrote in message .. . None. I always use my real name. I do have two accounts, one Google (used when no NNTP access is possible), one not On Tue, 10 Aug 2010 16:55:54 -0400, "Josepi" wrote: How many different nicknames do you go by in these groups? . wrote in message ... Which drugs are you on today? On Aug 10, 8:35 am, "Josepi" wrote: Now that would depend on the area you are metered by. |
#127
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Wed, 11 Aug 2010 00:03:26 -0400, "Josepi" wrote:
I don't know. You don't know if you're trying to make sense? Well, I guess that says it all. You are nothing but a troll. Why did you bring up drugs and attempt to roll the topic? Maybe because I'm truing to figure out if you're on drugs or just stupid. I've come to the realization that the choices aren't exclusive. Maybe you can find someone else who will talk to you now. You're sure limiting your possibilities quickly. |
#128
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Mike Marlow" wrote As well with my Craftsman fence - which is the same fence used on the Ridgid. It is dead nut - every time. Like John, I had to learn to trust it, but now - I don't even think about it. Others may fear it's not accurate, and I can understand that, since as I said - I had to learn to trust it. But... after many repeated measurements, the thing has proven itself. A very good point. If there are inaccuracies, for most people the problem came with bad technique such as keeping the board up tight to the fence, or bad saw setup, such as the blade not square to the table, and the fence not square to the table, which all is another way to say the fence is not parallel to the blade. Of course, these are basic points to all but the most inexperienced woodworker, but we all have to assume there are some of those lurking about, or some that will not admit to themselves or others that that label applies to them! g No fingers being pointed here because when you point at someone, there are always three fingers pointed back at yourself. (That is only true if you still have all of your fingers intact!) g -- Jim in NC |
#129
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Morgans" wrote in message
... "J. Clarke" wrote It obviously whizzed over _one_ head. http://www.vegawoodworking.com/ Wow, here I stand all red-faced and stuff! I have to admit that I go for the main stream stuff, and not the fine woodworker high line stuff. It is Would that be a red Facel Vega? an unfortunate condition of buying for a high school in a poor rural area of NC with _very_ limited funds to spend on equipment and supplies. I had not heard of that company and therefore though that you were making a funny! That's some table saw fence that needs oil changes and is in danger of overheating. Now, you're making a funny, right? I guess I need to ask and find out for sure, from now on! ;-) -- Jim in NC -- National Socialism showed what can happen when very ordinary people get control of a state and the merely opportunistic are regarded as intellectuals. Anthony Burgess |
#130
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Morgans" wrote in message
... "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Thanks, good to know and I'll google it as soon as I can think of what to search for. |
#131
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Josepi" wrote in message
... My cheap router table, adapted from a circular saw inversion table, has a switch shut-off bar that runs the full length of the table, one side, and pushes on the rocker switch. It seems to be a good idea, and is better than a small buried, under the table, switch but I am not sure how readily accesible it would be in event of a mishap. It may be easier to hit after dropping to the floor after scanning for flying parts, though....LOL Some things you get to know when to walk away and know when to run just by sound alone. I know the sound of a blank coming off a lathe chuck, or the sound of a bowl about to shatter. Left hand hits the switch while diving out of the line of fire! |
#132
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Aug 11, 5:49*am, "Lobby Dosser" wrote:
"Morgans" wrote in message ... "J. Clarke" wrote It obviously whizzed over _one_ head. *http://www.vegawoodworking.com/ Wow, here I stand all red-faced and stuff! *I have to admit that I go for the main stream stuff, and not the fine woodworker high line stuff. *It is Would that be a red Facel Vega? Ya right. |
#133
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
Lobby Dosser wrote:
"J. Clarke" wrote in message ... On 8/10/2010 8:54 PM, Morgans wrote: wrote I have used both and, for me, they both worked great. Do I have a preference? Well, my Vega has never let me down. ![]() Wow, how many heads did that (Vega) comment just wizz over? :-)) It is only the people that had one or knew someone that had one that really, really understand. It obviously whizzed over _one_ head. http://www.vegawoodworking.com/ But, if you were good on oil changes and never ever let it overheat, it wasn't as bad as everyone thinks. Problem is, how many people keep up with both of the two conditions I stated? Not many, huh? That's some table saw fence that needs oil changes and is in danger of overheating. Chevrolet Vega. Understood, but I think the OP is talking about the Vega tablesaw fence: http://www.vegawoodworking.com/table...%20fences.html -- Jack Novak Buffalo, NY - USA |
#134
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
If you would have used Doug's killfilter list you would have killfiltered me
before I posted at all. Obviously you don't follow orders well. Now run along and play with the other OCD boys. Maybe they can tolerate your nonsense. wrote in message ... You don't know if you're trying to make sense? Well, I guess that says it all. You are nothing but a troll. Maybe because I'm truing to figure out if you're on drugs or just stupid. I've come to the realization that the choices aren't exclusive. Maybe you can find someone else who will talk to you now. You're sure limiting your possibilities quickly. |
#135
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() wrote in message ... On Tue, 10 Aug 2010 16:42:33 -0500, "Leon" wrote: wrote in message ... Snip I have no rear bar (one of the weaknesses of the Biesemeyer fence, IMO). OTOH, I can see why they don't lock front and back. The second latch adds another source of error. What is wrong with your Beisemeyer fence? Seriousely, there must be something wrong if you can not rely on it to give you repeatable set ups unless it is mounted on a marginal saw. Nothing is wrong with it. I'd rather have something to hold down the back of the fence, is all. No, I don't trust the measure on the front. Haven't on any saw. Been burned. I guess it could be the blade thickness, too. I've never bothered to track it down. It's easier to measure off the tooth and the Wixey makes that unnecessary. I measured the distance from the fence to the blade for OK cuts when I had a Craftsman TS and stock fence but stoped doing that when I added a Jet Exacta fence. My new, 11 years ago, cabinet saw has the larger version of that fence. I use premium quality blades and have them checked for flat every time I have them resharpened. A problem that can occour with any method of measuring is that if a blade becomes "non-flat" measuring fromt the fence tot a tooth on the blade will yield inconsistant results. This will throw off the accuracy of the built in system on the Biese fence also. While the fence may be accurate at a given point a slightly warped blade that throw all of that out the window. Measuring from the blade to the fence will not improve that situation. Think kerf blades seem to exagerate the problem as they are less likely to stay flat. I on occasion I will make a rip cut, measure the result, and verify the cursor setting on the fence. I have been using a Jet cabinet saw with a Biese clone the Jet exacta fence for about 11 years now and for the first time last week I had to actually reset the curser, it was out 1/64". Again seriousely you absolutely should be able to depend on a Biesemeysr fence rule setting and or any clone. Now if you think I may simply be happy with cloce, think again. Swingman and I gang up on building high end kitchens. I but the sheets of plywood for all the cabinet panels, he cuts and assembles the face frames complete with dado's. My panels must fit in his dado in all of the face frames. We have never had a problem. He uses a Unifence and has no issues with truste either. Basically both of our saws must be calibrated identically. |
#136
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Morgans" wrote in message ... "CW" wrote I have used both and, for me, they both worked great. Do I have a preference? Well, my Vega has never let me down. ![]() Wow, how many heads did that (Vega) comment just wizz over? :-)) It is only the people that had one or knew someone that had one that really, really understand. But, if you were good on oil changes and never ever let it overheat, it wasn't as bad as everyone thinks. Problem is, how many people keep up with both of the two conditions I stated? Not many, huh? I had a Vega, they were inherently flawed. I personally replaced the short block in my garage and had the head reworked because a piston broke. Twenty something thousand miles later I would drive into a gas station and asked the attentant to fill the oil and check the gas. Having replaced the short block myself, oil changes were as routine as filling the vehicle with gas, not an issue of getting it done every 3K and properly. Over heating was a problem with most all of them. They did not do well in city traffic. My Vega did pretty good until I moved to a city with daily traffic conjestion. It was a very long time before GM could build a reliable 4 banger. How about a Luv pickup? Believe it or not, there is one that lives around here as an every day driver. Not too bad, for that fellow, I guess! Chevy LUV pick-ups were pretty good vehicles with decent engines. And might I add, Isuzu built that truck for Cheverolet. |
#137
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Steve Turner" wrote in message ... Your copy and paster seems to be bouncing. I believe you meant: http://benchmark.20m.com/articles/Un...rsusbessy.html Yeah no kidding... I dont know what happened there. |
#138
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Wed, 11 Aug 2010 02:58:30 -0700, "Lobby Dosser"
wrote: "Morgans" wrote in message ... "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Nevahoiduvit, neither. Thanks, good to know and I'll google it as soon as I can think of what to search for. "Extension-cord-with-magnetic-starter-built-in", perhaps? ;O "inline mag starter" maybe? |
#139
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Lobby Dosser" wrote in message ... "Morgans" wrote in message ... "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Thanks, good to know and I'll google it as soon as I can think of what to search for. I found this brand, but I think they are all GFCI's, too. I have found that using a GFCI on top of a GFCI protected like can sometimes lead to excessive false resets. I will keep looking for a little while, but there is one type. Just find a dealer and you are all set. -- Jim in NC |
#140
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Lobby Dosser" wrote Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Thanks, good to know and I'll google it as soon as I can think of what to search for. Oh, I think I would stick with the GFCE with a manual reset, for this price. http://www.grainger.com/Grainger/UL-...UZ7?Pid=search I sent a reply to the poster, instead of the group earlier by mistake. Here is that message with a link. found this brand, but I think they are all GFCI's, too. I have found that using a GFCI on top of a GFCI protected like can sometimes lead to excessive false resets. I will keep looking for a little while, but there is one type. Just find a dealer and you are all set. I forgot the link the first time. http://tools.passandseymour.com/psgf...leGFCI_bro.pdf -- Jim in NC |
#141
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
Puckdropper wrote:
Jack Stein wrote in I'm sure a switch has gone on by itself at least once somewhere, but in well over half a million hours of experience, I've not witnessed it, I asked him if he ever witnessed same, he said no, so thats well over one million hours of testing... so I live on the edge... Geez, no guard, no splitter, no disconnect... Thrill a minute... I've seen some things turn on by themselves, or more likely *not* turn on. Not turning on is never an issue when changing a saw blade... I've seen plenty of things not turn on, for various and sun dry reasons":-) Now some of these modern computers... Those stupid things turn on when power is connected. Yes some do, some don't. When I ran a BBS it was imperative that the PC turn on and boot by itself. There were some that didn't, and that was a problem if you ran a BBS. -- Jack Mr. Geithner, May I Borrow Your TurboTax? http://jbstein.com |
#142
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Morgans" wrote in message ... "Leon" wrote That would be the desired effect but with a contractors saw I would be shocked if the motor stopped and the blade did not continue to spin a few times. I don't know what drive system contractor saws use. I know the Craftsman my Dad had, used a toothed belt, so if the motor stopped, the blade would stop, at least until it tore the teeth off the belt. I think some use a gear drive, don't they? -- Jim in NC Toothed belt,, as in like a timing belt? or a standard automotive belt? Normal drive belts with the notches cut out are made that way so that they can turn a tigher radius. Those normally have no more grip than a belt with out a notches cut out. A timing style belt with equal sized spaced, and shallower notches are designed for absolutely no slip. Some saws are actually direct drive and bench top saws are typically gear reductions. |
#143
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() wrote in message ... On Mon, 9 Aug 2010 17:43:59 -0500, "Leon" wrote: A "couple of times" solves the stated problem. Think again if you think a blade making 2 revolutions will not remove a digit. If a blade has enough momentum to spin 1 complete revolution against the friction on a stationary belt or motor it has enough to slice through your hand. The typical electronic brake found on most miter saws will not prevent you from being cut either but does reduce the window of opportunity. |
#144
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() wrote in message ... On Mon, 9 Aug 2010 21:46:01 -0400, "Morgans" wrote: "Leon" wrote That would be the desired effect but with a contractors saw I would be shocked if the motor stopped and the blade did not continue to spin a few times. I don't know what drive system contractor saws use. I know the Craftsman my Dad had, used a toothed belt, so if the motor stopped, the blade would stop, at least until it tore the teeth off the belt. I think some use a gear drive, don't they? I don't know any with a gear drive. Small table-top units are generally direct drive. Full sized table saws are almost all belt driven. Not all have teeth, though. I wouldn't imagine gears would be a good thing on a table saw. DeWalt, Makita etc, all gear driven. Basically bench top saws have use universal motors and gear reduction, loud like miter saws. |
#145
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Larry Blanchard" wrote in message ... On Mon, 09 Aug 2010 11:30:43 -0500, Leon wrote: Can't agree, that technology had been around for many years. I have lamps in my house that turn off when touched, building elevator buttons that select by touch, and my I-phone needs the touch of skin, not a stylus or finger nail to work. But none of those are spinning rapidly :-). And aren't some of them pressure-sensitive rather than touch-sensitive? Lets take all of what was in my post, The claim to fame for SawStop is Not stopping the blade, but Sensing when your pinkie finger touched the blade and Then stopping the blade before you lose said pinkie. Can't agree, that technology had been around for many years. I have lamps in my house that turn off when touched, building elevator buttons that select by touch, and my I-phone needs the touch of skin, not a stylus or finger nail to work. Getting a blade spinning in excess of 3000 rpm to stop in a small fraction of a turn and drop below the table surface is the tricky part. I was refering to how the switch touch technology regardless of application has been around a long time. In fact some times a static charge in your finger is enough to operate the switch with out actually touching the switch. Not to be confused with touch screens that require pressure as you mentioned, GPS screens typically needs the pressure. |
#146
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Wed, 11 Aug 2010 15:51:46 -0500, "Leon" wrote:
wrote in message .. . On Mon, 9 Aug 2010 17:43:59 -0500, "Leon" wrote: A "couple of times" solves the stated problem. Think again if you think a blade making 2 revolutions will not remove a digit. If a blade has enough momentum to spin 1 complete revolution against the friction on a stationary belt or motor it has enough to slice through your hand. That wasn't the problem. The problem was the blade taking too long to spin down and reaching in there before it did. We weren't redesigning the SawStop. The typical electronic brake found on most miter saws will not prevent you from being cut either but does reduce the window of opportunity. Prevent no, but it takes time to move hands. The issue was why this wasn't done for more expensive table saws with a far more expensive/complicated controller. |
#147
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Wed, 11 Aug 2010 15:58:53 -0500, "Leon" wrote:
wrote in message .. . On Mon, 9 Aug 2010 21:46:01 -0400, "Morgans" wrote: "Leon" wrote That would be the desired effect but with a contractors saw I would be shocked if the motor stopped and the blade did not continue to spin a few times. I don't know what drive system contractor saws use. I know the Craftsman my Dad had, used a toothed belt, so if the motor stopped, the blade would stop, at least until it tore the teeth off the belt. I think some use a gear drive, don't they? I don't know any with a gear drive. Small table-top units are generally direct drive. Full sized table saws are almost all belt driven. Not all have teeth, though. I wouldn't imagine gears would be a good thing on a table saw. DeWalt, Makita etc, all gear driven. Basically bench top saws have use universal motors and gear reduction, loud like miter saws. Yes, you're right. I was thinking universal motors, but forgot the speed problem. Double ick! |
#148
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Leon" wrote Toothed belt,, as in like a timing belt? or a standard automotive belt? Yes, my Dad's Craftsman table saw uses a toothed timing belt style for driving the blade. They seem to break at the most inopertune times, so he always had an extra one on hand so he could quickly change it and get back to work. -- Jim in NC |
#149
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Larry Jaques" wrote in message
... On Wed, 11 Aug 2010 02:58:30 -0700, "Lobby Dosser" wrote: "Morgans" wrote in message ... "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Nevahoiduvit, neither. Thanks, good to know and I'll google it as soon as I can think of what to search for. "Extension-cord-with-magnetic-starter-built-in", perhaps? ;O "inline mag starter" maybe? You got good results from those? |
#150
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Morgans" wrote in message
... "Lobby Dosser" wrote Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Thanks, good to know and I'll google it as soon as I can think of what to search for. Oh, I think I would stick with the GFCE with a manual reset, for this price. http://www.grainger.com/Grainger/UL-...UZ7?Pid=search I sent a reply to the poster, instead of the group earlier by mistake. Here is that message with a link. found this brand, but I think they are all GFCI's, too. I have found that using a GFCI on top of a GFCI protected like can sometimes lead to excessive false resets. I will keep looking for a little while, but there is one type. Just find a dealer and you are all set. I forgot the link the first time. http://tools.passandseymour.com/psgf...leGFCI_bro.pdf -- Jim in NC Pass and Seymour offer Manual Reset models, so probably the same price as Grainger. I think I'll just remember to unplug! |
#151
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Lobby Dosser" wrote Pass and Seymour offer Manual Reset models, so probably the same price as Grainger. I think I'll just remember to unplug! I found it for about 36 bucks, but lost it, now. -- Jim in NC |
#152
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() wrote in message ... On Wed, 11 Aug 2010 15:58:53 -0500, "Leon" wrote: DeWalt, Makita etc, all gear driven. Basically bench top saws have use universal motors and gear reduction, loud like miter saws. Yes, you're right. I was thinking universal motors, but forgot the speed problem. Double ick! Not totally debunking your previous thought, there is a regular here that has a "direct drive" TS. I do not recall the size but do believe that it was on the small size. Years back Craftsman contractor saws, for a short period of time, used a flex shaft to connect the motor to the blade, I don't know if that would be considered a true direct drive or not. |
#153
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Morgans" wrote in message ... "Leon" wrote Toothed belt,, as in like a timing belt? or a standard automotive belt? Yes, my Dad's Craftsman table saw uses a toothed timing belt style for driving the blade. They seem to break at the most inopertune times, so he always had an extra one on hand so he could quickly change it and get back to work. -- Jim in NC Wow, I'd like to have seen the pulleys. |
#154
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
On Wed, 11 Aug 2010 21:40:01 -0700, "Lobby Dosser"
wrote: "Larry Jaques" wrote in message .. . On Wed, 11 Aug 2010 02:58:30 -0700, "Lobby Dosser" wrote: "Morgans" wrote in message ... "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Nevahoiduvit, neither. Thanks, good to know and I'll google it as soon as I can think of what to search for. "Extension-cord-with-magnetic-starter-built-in", perhaps? ;O "inline mag starter" maybe? You got good results from those? Nope, I didn't try either that day. What'd you find? Anything? |
#155
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Leon" wrote in message ... wrote in message ... On Wed, 11 Aug 2010 15:58:53 -0500, "Leon" wrote: DeWalt, Makita etc, all gear driven. Basically bench top saws have use universal motors and gear reduction, loud like miter saws. Yes, you're right. I was thinking universal motors, but forgot the speed problem. Double ick! Not totally debunking your previous thought, there is a regular here that has a "direct drive" TS. I do not recall the size but do believe that it was on the small size. Years back Craftsman contractor saws, for a short period of time, used a flex shaft to connect the motor to the blade, I don't know if that would be considered a true direct drive or not. You may be referring to me. I don;t have the saw any longer but it was a full size saw with a direct drive induction motor. Blade was mounted directly on the motor shaft. The only problem with that set up is that the blade height was restricted by the motor. Very smooth and quiet though. |
#156
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Lobby Dosser" wrote
Pass and Seymour offer Manual Reset models, so probably the same price as Grainger. I think I'll just remember to unplug! The local (El Paso) Lowes has them. http://tinyurl.com/2vcnlt4 Max |
#157
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "CW" wrote in message m... You may be referring to me. I don;t have the saw any longer but it was a full size saw with a direct drive induction motor. Blade was mounted directly on the motor shaft. The only problem with that set up is that the blade height was restricted by the motor. Very smooth and quiet though. Yeah I thought it was you, CW. Did not want to say with out knowing for sure. I bet that saw was smooth, what happened with it? |
#158
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Larry Jaques" wrote in message
... On Wed, 11 Aug 2010 21:40:01 -0700, "Lobby Dosser" wrote: "Larry Jaques" wrote in message . .. On Wed, 11 Aug 2010 02:58:30 -0700, "Lobby Dosser" wrote: "Morgans" wrote in message ... "Lobby Dosser" wrote Which tools should have, as they cannot start if they were shut down due to a power failure and the power is restored. No foul if the TV comes back on, but power tools are a whole other story. Have you ever seen the extension cord type device that is sold for tools without magnetic starters to guard against exactly the thing you just mentioned? Nevahoiduvit, neither. Thanks, good to know and I'll google it as soon as I can think of what to search for. "Extension-cord-with-magnetic-starter-built-in", perhaps? ;O "inline mag starter" maybe? You got good results from those? Nope, I didn't try either that day. What'd you find? Anything? Nothing |
#159
![]()
Posted to rec.woodworking
|
|||
|
|||
![]()
"Max" wrote in message
... "Lobby Dosser" wrote Pass and Seymour offer Manual Reset models, so probably the same price as Grainger. I think I'll just remember to unplug! The local (El Paso) Lowes has them. http://tinyurl.com/2vcnlt4 Max Those are GFCI. What we're looking for is a cord with a switch that will go to Off on a power loss and require a Manual reset. -- National Socialism showed what can happen when very ordinary people get control of a state and the merely opportunistic are regarded as intellectuals. Anthony Burgess |
#160
![]()
Posted to rec.woodworking
|
|||
|
|||
![]() "Lobby Dosser" wrote Those are GFCI. What we're looking for is a cord with a switch that will go to Off on a power loss and require a Manual reset. SOME of the GFCI variety will behave as we need them too, and need a manual reset after the power is off. The trick is checking which ones are like that. I will try to remember and check the ones at Lowe's to see if they require a manual reset when powered on. -- Jim in NC |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Moment of Inertia for S Type I Beam | Metalworking |