Barry_Cole
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As I said above, I am new to this so can someone explain please. Looking at the data sheet on the motor it seems to say that each step on the motor turns the shaft 1.8 degrees?? Given a direct drive to the (00 Gauge) turntable at approx 350mm diameter, this seems to give steps of approx 5mm at the edge. I feel that I must be missing something.
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Will this motor be OK. I am new to all this. https://www.amazon.co.uk/Longruner-Stepper-Bipolar-Connector-Mounting/dp/B072LVBK13/ref=pd_lpo_147_t_0/258-3468439-4552646?_encoding=UTF8&pd_rd_i=B072LVBK13&pd_rd_r=f6aed533-5acc-4579-895d-caa8822685e6&pd_rd_w=5wosh&pd_rd_wg=5xnje&pf_rd_p=7b8e3b03-1439-4489-abd4-4a138cf4eca6&pf_rd_r=N5WMEB8VS76ZPZSB5F39&psc=1&refRID=N5WMEB8VS76ZPZSB5F39
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Ian,
Did you have any luck with the relay board PCBs that you were doing for me.
Barry Cole modelgliding {at} aol.com
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Simon, Any chance of the updated sketch, and maybe a wiring diagram?? Hope that's not too much to ask..... BC
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Toothed belts available here:- https://www.hpcgears.com/pdf_c33/12.88-12.89.pdf BC
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Like this?? https://www.youtube.com/watch?v=EL4XZwR6xVE BC
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Simon, Any chance of some photos of the mechanics of your turntable, please. BC
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Simon, Thanks for that, I will do some reading. I have a little stepper motor with the starter kit that I bought. I will have a play with that first. I am in no particular hurry, so I can wait for your help. Thanks for taking the time to reply. BC
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I am very new to this, just got my first Arduino last week, so still very confused. I would like to ask a few questions if I may, as a turntable for an OO gauge layout is my goal. I see that you are using a direct drive. As the motors seem to have 200 steps, this gives a resolution of 1.8 Degrees. At the outer edge of a 325mm dia TT this is a step of about 5mm, dose this not make it a bit jerky?? I was planning on a 5:1 belt drive.??, would this not be an improvement??. My ideal way of operating would be to have a button to press for each position. A maximum of 8 positions. The TT moving from wherever it is, to the required position. Is this possible/practical. I feel that the chances of me being able to write the required program (sketch?) for this is about 1000:1, so is here anyone out there who has done this and could supply me a copy of said program. Please be gentle with me... Many thanks for any help that you may be able to give. Barry Cole
