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| DDCSV1.1 4 Axis controller |
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| old Zozo:
--- Quote from: chriscnc on September 15, 2017, 07:15:15 PM ---Thanks for the info, I did the math and tried to match the X and Y with micro stepping, the best i can come up with is 20 steps per mm split so it's not going to work for me. --- End quote --- My controller made arc-mistake too, under 250 step/mm. What driver do you use? Could you increase microstep? |
| chriscnc:
Hi Old Zoro-- My issue is the 20mm difference between X and Y per mm. To use arcs they must be equal steps per mm. My setup has a rack and pinion on Y and ball screw on X so there is a slight difference in steps ( X=295, Y=315, Z=375). I'm using the original IMS drives that came with the machine and they have 8 levels of micro-stepping available (2~256) in Binary and 6 levels in decimal (5~250). Now I did a test and modified the Post in fusion to use no arcs (breaks arcs up into little G01 moves) and the Interpolation Math of X and Y did use the axis values and ran correctly. The issue is Arc math G02/03 ties the axis together and must be equal in steps. attaceh is the drive info and my mechanical resolutions if someone else is seeing a closer match for X/Y micro stepping. X= 1 rev= 6.35mm motion (2000steps micro steping X10)=314.96 steps per mm Y= 1 rev= 10.896mm motion (3200 micro steps X16)= 293.84 step per mm |
| old Zozo:
Chriscnc, I prefer linuxcnc/EMC2 postprocessor at Fusion360. I tried a lot of post too, but it is the correct one for my controller. |
| TurboRexed:
You are buggered Chriscnc, if you cannot change that y axis slightly, the new revision controller is your only fix 👍 |
| TurboRexed:
--- Quote from: old Zozo on September 16, 2017, 07:31:36 AM ---My controller made arc-mistake too, under 250 step/mm. What driver do you use? Could you increase microstep? --- End quote --- old Zozo What is your x and y axis mm/1rev ? and can your driver do microstepping? |
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