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hotponyshoes
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Pretty much any motor that suits the maths will do the job. Geared is good so the cooling fan works better. Or go servo type motor.
Look into the controller first as they can cost more/be harder to salvage than the motor.
Have a good think about the pedals, progressive ones can be a pain to use if you are trying to run at medium speed for any length of time as you have to keep it half pressed while trying to feed the workpiece.
At least, with an on/off you can keep the pedal pressed while dragging it across the floor with your foot.
My ideal would be 2 pedals (joined together) one for fwd, one for rev. Then a speed control via the pedals but that could be switched to a hand control on a wander lead which was also duplicated with a speed control at a fixed, easy to reach point.
Look into the controller first as they can cost more/be harder to salvage than the motor.
Have a good think about the pedals, progressive ones can be a pain to use if you are trying to run at medium speed for any length of time as you have to keep it half pressed while trying to feed the workpiece.
At least, with an on/off you can keep the pedal pressed while dragging it across the floor with your foot.
My ideal would be 2 pedals (joined together) one for fwd, one for rev. Then a speed control via the pedals but that could be switched to a hand control on a wander lead which was also duplicated with a speed control at a fixed, easy to reach point.
oldbikedavey
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Based on my small experience of using my CMZ unit, its likely that a bit of subtlety might be lost in the motorisation.
Worth a thought....
Worth a thought....
mike 109444
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If you can get a mobility scooter motor/drive assembly then it has the advantage of having a leaver (red bit) that disingauges the drive. This allows manual inital feeding to start. You would need to stri[p the drive unit as it has a differental that like a car will send drive to the easest side (not your work end!)
Matchless
I started with nothing, still have most of it left
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I just cannot do what I need to one handed, I had trained up a mate years ago to help me but the so and so moved away!
oldbikedavey
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Well, if you're completely stuck , I'm not a million miles away....
500e
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Solid machine there @mike 109444, what make
mike 109444
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It is one of the generic ones from ebay
like this but few yares back was cheeper !
https://www.ebay.co.uk/itm/27536557...3HiqiLX1nqTxyDwFxDhcM1Kw==|tkp:Bk9SR_T9xZzJZA
Matchless
I started with nothing, still have most of it left
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I had an idea that I had a pair of wheelchair motor / gearbox units in the loft of No.3 shed, I did, cannot remember if they are 12v or 24v but they look just the job, and as a bonus they came with a pair of alloy wheels with Austin J40 size and tread pattern tyres! bit perished but as they are MOT exempt ............. so if anyone has any old wheelchair inflatable tyres / wheels I would be very interested,
Matchless
I started with nothing, still have most of it left
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Could also have a forward / reverse switch as reverse is rarely used, so just need a simple foot pedal! but what pot do I need, not 100% sure what my motors are but 12-24v and 250-450w
For a motor current of 20 or 40 Amps you need more than a pot - an electronic pulse-width modulated ( PWM ) speed controller, e.g.:
Speed Controller PWM Motor CW.CCW Reversible Switch Equipment Industrial | eBay
Forward Reversal: Support. Support Motor: DC Brush Motor. Speed Range: 0%~. Small size and easy to carry. Made of high quality material, and practical to use. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness...
www.ebay.co.uk
Agroshield
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The moving away is not the problem here, he just needs longer arms.
A VFD will only work with an AC three phase motor.
Agroshield
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Is there any issue with PWM controllers (e.g. heat dissipation) running more often at the low end of the speed range? Could it benefit from an external fan if used this way? Would it give the controller an easier time to gear the motor mechanically so that it is roughly correct in the middle of the range?
hotponyshoes
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I have used the cheap Chinese speed controls and found a big torque loss at lower speeds. Might have been the motor rather than the controller.
Another thing to consider, if the motor has a cooling fan it may not get enough airflow running at low rpm. Would be simple enough to fit an electric fan to most motors though.
