How To - Correcting XY Scale factor

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Keith Sherwin
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Re: How To - Correcting XY Scale factor

Postby Keith Sherwin » Mon Aug 15, 2016 4:46 pm

Great write up.
Only thing I would add is that after you have your correct measurements and settings, and you have written to your machine, do another "Read" and "Save" as WORKING _SETTINGS (you may have said so in a different way :lol: ). Keep both of them in a safe place. Actually, go to your user settings & Read and Save those settings also.
Put all of the saved settings on a well marked CD or DVD for future reference if ever needed.

I labeled mine NewSetting#1.RDUSet, NewSetting#2.RDUSet, NewSetting#3.RDUSet NewSetting#4.RDUSet as I changed the User settings.

And, Vendor_Original.RDVSet and Vendor_Corrected.RDVSet for the Vendor settings. It can save a world of grief.
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Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
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Lead in creation of the RDWorksLab English Manual.
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Keith Sherwin
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Re: How To - Correcting XY Scale factor

Postby Keith Sherwin » Fri Aug 19, 2016 4:42 pm

Good thought Peter, But does it exceed 800 characters? :lol:
If Mike gives us permission, I will put it in the manual.
69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.21 on W7 Pro
Lead in creation of the RDWorksLab English Manual.
Crazy Uncle Keith!

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Gene Uselman
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Re: How To - Correcting XY Scale factor

Postby Gene Uselman » Fri Aug 19, 2016 4:56 pm

Good stuff, Mike.
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Keith Sherwin
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Re: How To - Correcting XY Scale factor

Postby Keith Sherwin » Sat Aug 20, 2016 7:12 am

Thanks Mike.
69 Real (80)Watt Laser w/multi FL lenses. T.L.
Made 5 CNC's, Electronics, Electrical, PLC & Computer background.
:idea: Started this forum - Using RDWorks V8.01.21 on W7 Pro
Lead in creation of the RDWorksLab English Manual.
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Kevin Rodden
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Re: How To - Correcting XY Scale factor

Postby Kevin Rodden » Tue Oct 04, 2016 12:01 pm

Thank you looking forward to testing it out over the weekend.
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Alexis Tzoulis
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Re: How To - Correcting XY Scale factor

Postby Alexis Tzoulis » Sat Oct 15, 2016 6:46 pm

Another way to correct this is to see stepper drivers dip switches for microstepping measure pulleys pitch and calculate the pulleys belts
transmission ratio from measuring the pulleys teeths.
After that you know that stepper motors have 200 steps x microsteps per revolution and you can calculate the step length.
Another important issue is the maximum speed must be set in the way motors don't go more than 1000rpm because
steppers can be stall (loose steps) at more than 1000 rpm
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