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  • Wiring up a Brooke Crompton single-phase lathe motor (Myford Lathe)

    I'm very sorry, but I have no experience of any other motor, so I can't help. Mine had four internal terminals not three, so I'm afraid I'm not going to be of any use to you!Best wishes - I hope you sort it out.

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  • You might be right, but lots of 3D printed projects have to be made to quite tight tolerances. For example, separate parts need to fit together, and components have to mesh together, etc. The models created by 123D are very precise - dimensions are entered to three decimal places - that's to one thousandth of a mm! (I was surprised to learn that Sketchup has an absolute limit on its resolution to 1/64th inch - about 0.4mm - which is interesting for 3D printing).The attached photos show a shower door runner designed in 123D. The hole is a sliding fit on a 5mm rod - it is drawn at 5.1mm diameter. In measuring the one I had to copy, I used a digital caliper and measured to 0.05mm (which is easily achieved), so some precision is needed, even for every-day objects.Many thanks for your intere...see more »You might be right, but lots of 3D printed projects have to be made to quite tight tolerances. For example, separate parts need to fit together, and components have to mesh together, etc. The models created by 123D are very precise - dimensions are entered to three decimal places - that's to one thousandth of a mm! (I was surprised to learn that Sketchup has an absolute limit on its resolution to 1/64th inch - about 0.4mm - which is interesting for 3D printing).The attached photos show a shower door runner designed in 123D. The hole is a sliding fit on a 5mm rod - it is drawn at 5.1mm diameter. In measuring the one I had to copy, I used a digital caliper and measured to 0.05mm (which is easily achieved), so some precision is needed, even for every-day objects.Many thanks for your interest. Best wishes.

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  • Googling for answers to the same question, I keep coming to this Instructable!It prompted me to sort out a technique which can be used. AutoDesk 123D may have evolved since the question was posed; but here is a link to a video which shows my attempt. It could be done in well under the 10 minutes of the video!I bet there are better ways to do it! Hope this helps somebody.

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