Clarification on rod length
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Pretty sure not, it'll be to "centres", and as the ball sits roughly half way into the socket, you just use the overall length of the arms.
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Ok, thanks. There must be another reason why my test print of a 20mm cube comes out to be 22.6mm for X and 22.6mm for y.
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I think Haydn measures them by placing high grade 3/8th bearings into the ends, measuring with calipers then removing 3/8th of an inch from the total length.
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he does so the length marked on them when they arrive is the centre to centre length and is what needs to be in your M665 line as the L parameter.
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Good, that is what I entered. That eliminates one variable.
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Check that your steps/mm settings for the towers are correct (M92 command in config.g).
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and don't use 7 or 9 factor calibration stick to 6 or 8 (7 and 9 will adjust the L param to get best fit which may cause the part to come out the wrong size) I generally use S8 for the Cal factor setting.
Doug
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Agreed 8 factor is the way forward. I have adjusted the rod length to scale parts. I tried the part scaling Mcode but got slightly warped parts. I need to recheck check my steps/mm as I have new belts.
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Check that your steps/mm settings for the towers are correct (M92 command in config.g).
Using 1.8 degree motor, 20 tooth pulley, gt2 belt comes to 80 which is what I have.
Still trying stuff. -
Check that your steps/mm settings for the towers are correct (M92 command in config.g).
Using 1.8 degree motor, 20 tooth pulley, gt2 belt comes to 80 which is what I have.
Still trying stuff.80 sounds correct, but I suggest you check it by first checking that Z=0 has the nozzle just touching the bed, then commanding the nozzle to e.g. Z=200 and checking that it really is 200mm above the bed.
