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| UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Where is the best place to buy robot parts?
Looking for some toothed pulleys and belts to motorise an N gauge
turntable and finding compatible parts on Amazon is hard with their search engine. |
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#2
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Where is the best place to buy robot parts?
On Wed, 14 Sep 2016 19:32:13 +0100, dennis@home
wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Don't know if they are the best but Expo supply things like that amongst other useful parts, can often be found in Model shops or you can buy online. https://www.expotools.com/acatalog/G...d-Pulleys.html G.Harman |
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#3
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Where is the best place to buy robot parts?
On 14-Sep-16 7:32 PM, dennis@home wrote:
Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Anything useful from these people? http://www.hpcgears.com/ -- -- Colin Bignell |
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#4
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Where is the best place to buy robot parts?
On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote:
Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT |
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#5
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Where is the best place to buy robot parts?
dennis@home wrote:
Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. CPC used to sell toothed aluminium wheels and belts. |
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#6
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Where is the best place to buy robot parts?
On 2016-09-14 19:32, dennis@home wrote:
Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. http://www.robotshop.com/uk/ (I've not yet bought anything from them, but it is likely that I will.) |
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#7
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Where is the best place to buy robot parts?
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#8
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Where is the best place to buy robot parts?
On 14/09/16 19:37, wrote:
On Wed, 14 Sep 2016 19:32:13 +0100, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Don't know if they are the best but Expo supply things like that amongst other useful parts, can often be found in Model shops or you can buy online. https://www.expotools.com/acatalog/G...d-Pulleys.html G.Harman http://www.technobotsonline.com/ -- "If you dont read the news paper, you are un-informed. If you read the news paper, you are mis-informed." Mark Twain |
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#9
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Where is the best place to buy robot parts?
On Wednesday, 14 September 2016 21:28:40 UTC+1, WeeBob wrote:
On 2016-09-14 19:32, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. http://www.robotshop.com/uk/ (I've not yet bought anything from them, but it is likely that I will.) I just bought a robot window cleaner from them - excellent customer service. |
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#10
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Where is the best place to buy robot parts?
dennis@home wrote:
Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. http://www.sdp-si.com/ http://www.minibearings.com/store/ca...rs+categories/ http://www.hobbyparts.com.au/store/c...ies/gears/all/ http://www.wmberg.com/ |
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#11
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Where is the best place to buy robot parts?
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#12
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Where is the best place to buy robot parts?
On Wednesday, September 14, 2016 at 8:22:45 PM UTC+1, wrote:
On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT Old printers also a good source with belts http://www.mindsetsonline.co.uk used to be MUTR, part of Middlesex University |
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#13
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Where is the best place to buy robot parts?
On 16/09/2016 11:56, Adam Aglionby wrote:
On Wednesday, September 14, 2016 at 8:22:45 PM UTC+1, wrote: On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT Old printers also a good source with belts http://www.mindsetsonline.co.uk used to be MUTR, part of Middlesex University I finally found what i think is a compatible set on amazon. A 10T 5mm bore pulley, a 50T 10mm bore pulley and a 11mm wide belt. Less than the price of the 10T pulley on most of the sites. I would have liked a smaller bore on the big pulley but they don't seem to do them in metal. It should be OTT for the job. The real question is do I need to gear it up or gear it down? The stepper has 4k steps per rev so it could be quite slow but the final speed is quite low too. I might even try it without the gears first. |
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#14
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Where is the best place to buy robot parts?
"dennis@home" wrote in message web.com... On 16/09/2016 11:56, Adam Aglionby wrote: On Wednesday, September 14, 2016 at 8:22:45 PM UTC+1, wrote: On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT Old printers also a good source with belts http://www.mindsetsonline.co.uk used to be MUTR, part of Middlesex University I finally found what i think is a compatible set on amazon. A 10T 5mm bore pulley, a 50T 10mm bore pulley and a 11mm wide belt. Less than the price of the 10T pulley on most of the sites. I would have liked a smaller bore on the big pulley but they don't seem to do them in metal. It should be OTT for the job. The real question is do I need to gear it up or gear it down? The stepper has 4k steps per rev so it could be quite slow but the final speed is quite low too. I might even try it without the gears first. 4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? |
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#15
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Where is the best place to buy robot parts?
"bm" wrote in message eb.com... "dennis@home" wrote in message web.com... On 16/09/2016 11:56, Adam Aglionby wrote: On Wednesday, September 14, 2016 at 8:22:45 PM UTC+1, wrote: On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT Old printers also a good source with belts http://www.mindsetsonline.co.uk used to be MUTR, part of Middlesex University I finally found what i think is a compatible set on amazon. A 10T 5mm bore pulley, a 50T 10mm bore pulley and a 11mm wide belt. Less than the price of the 10T pulley on most of the sites. I would have liked a smaller bore on the big pulley but they don't seem to do them in metal. It should be OTT for the job. The real question is do I need to gear it up or gear it down? The stepper has 4k steps per rev so it could be quite slow but the final speed is quite low too. I might even try it without the gears first. 4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? Ultra HD stepper  |
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#16
Posted to uk.d-i-y
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Where is the best place to buy robot parts?
"bm" wrote in message eb.com... "bm" wrote in message eb.com... "dennis@home" wrote in message web.com... On 16/09/2016 11:56, Adam Aglionby wrote: On Wednesday, September 14, 2016 at 8:22:45 PM UTC+1, wrote: On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT Old printers also a good source with belts http://www.mindsetsonline.co.uk used to be MUTR, part of Middlesex University I finally found what i think is a compatible set on amazon. A 10T 5mm bore pulley, a 50T 10mm bore pulley and a 11mm wide belt. Less than the price of the 10T pulley on most of the sites. I would have liked a smaller bore on the big pulley but they don't seem to do them in metal. It should be OTT for the job. The real question is do I need to gear it up or gear it down? The stepper has 4k steps per rev so it could be quite slow but the final speed is quite low too. I might even try it without the gears first. 4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? Ultra HD stepper **** a brick, up to 50,800 steps/rev - http://www.allaboutmotion.com/ams-pr...tepping-drive/ That's taking the ****. I retired 11 years back on 400 half/steps/rev (and a crap salary), progress eh? Bring on Brexit Looks as though our Nige is gonna make himself a PITA to the EU ( jobs for life) for the foreseeable future, good lad. |
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#17
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Where is the best place to buy robot parts?
On 17/09/2016 00:22, bm wrote:
4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? Its a little 5V one with a 48:1 gearbox built in. I may have to program in a bit of backlash compensation. If it doesn't have enough torque I will fit a nema17 one which will only have 200 steps and use the 5:1 reduction. The only real problem is there isn't space to use any roller bearings at the ends of the turntable so there may be a bit of friction there but I don't know how much yet. |
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#18
Posted to uk.d-i-y
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Where is the best place to buy robot parts?
On 17/09/2016 00:59, bm wrote:
"bm" wrote in message eb.com... "bm" wrote in message eb.com... "dennis@home" wrote in message web.com... On 16/09/2016 11:56, Adam Aglionby wrote: On Wednesday, September 14, 2016 at 8:22:45 PM UTC+1, wrote: On Wednesday, 14 September 2016 19:32:16 UTC+1, dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. Get a VHS, as old as possible, from freecycle etc. The later ones had a lot less mechanical bits. NT Old printers also a good source with belts http://www.mindsetsonline.co.uk used to be MUTR, part of Middlesex University I finally found what i think is a compatible set on amazon. A 10T 5mm bore pulley, a 50T 10mm bore pulley and a 11mm wide belt. Less than the price of the 10T pulley on most of the sites. I would have liked a smaller bore on the big pulley but they don't seem to do them in metal. It should be OTT for the job. The real question is do I need to gear it up or gear it down? The stepper has 4k steps per rev so it could be quite slow but the final speed is quite low too. I might even try it without the gears first. 4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? Ultra HD stepper **** a brick, up to 50,800 steps/rev - http://www.allaboutmotion.com/ams-pr...tepping-drive/ That's taking the ****. I retired 11 years back on 400 half/steps/rev (and a crap salary), progress eh? Microstepping isn't the same as stepping from one step to the next, it is just PWM modulation of the pulse to control the speed it steps between the steps AIUI. It also allows you to have a higher current than the motors rating and increase the starting torque at the beginning of the step. |
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#19
Posted to uk.d-i-y
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Where is the best place to buy robot parts?
"dennis@home" wrote in message web.com... On 17/09/2016 00:22, bm wrote: 4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? Its a little 5V one with a 48:1 gearbox built in. I may have to program in a bit of backlash compensation. http://www.automotioncomponents.co.u...ars.r2084r.jpg If it doesn't have enough torque I will fit a nema17 one which will only have 200 steps and use the 5:1 reduction. The only real problem is there isn't space to use any roller bearings at the ends of the turntable so there may be a bit of friction there but I don't know how much yet. |
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#20
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Where is the best place to buy robot parts?
On Thursday, September 15, 2016 at 9:56:38 AM UTC+1, F Murtz wrote:
dennis@home wrote: Looking for some toothed pulleys and belts to motorise an N gauge turntable and finding compatible parts on Amazon is hard with their search engine. http://www.sdp-si.com/ http://www.minibearings.com/store/ca...rs+categories/ http://www.hobbyparts.com.au/store/c...ies/gears/all/ http://www.wmberg.com/ http://www.banggood.com/75-Type-Plas...-p-961920.html banggood have some excellent deals |
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#21
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Where is the best place to buy robot parts?
On 17/09/2016 11:45, bm wrote:
"dennis@home" wrote in message web.com... On 17/09/2016 00:22, bm wrote: 4k steps per rev (0.09 degrees)? Gordon Bennet, 200 (1.8 degrees) is more like the ones I used. What motor is that? Its a little 5V one with a 48:1 gearbox built in. I may have to program in a bit of backlash compensation. http://www.automotioncomponents.co.u...ars.r2084r.jpg Well they would help if they were fitted inside the motor, but at £2.99 I doubt it. |
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