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Discussion in 'Other Builds' started by Shelby Teknologies, Jan 1, 2019.
Pick and place based on the Openbuilds ACRO 20x20
Shelby Teknologies published a new build:
Read more about this build...
I received my latest order from OpenBuilds today. The controller should work until I can create my own so having the support for additional drivers on the xpro v4 is really cool. I hope to have pictures soon and now back to working on the 3rd version of the head.
Well due to a shipment failure I had to come up with a new idea for my controller. The xPro v4 A is NOT an A Axis but just a clone of X,Y or Z so this board was not going to work. This will however work nicely for my miniMill which will now be complete....
Since my smoothieboard order got all messed up and cancelled I decided to figure out a plan B. I found the grbl code to add Axis C and spent the night modifying the latest 1.1g Mega release to support the C Axis. I just tested the X Axis functionality which is extremely smooth with the DM320T set at 12800 steps. Now I just need 4 more DM320T which is probably going to be a week until I receive those.
I made progress on the smoothie board but now have this odd jitter on the X and Y axis
Apparently the DRV8825s were not a good choice on my part as the above is a known issues with the pulses. I will try the TMC2130s as I would rather use more precision any way but the DRV8825 was just a proof of concept. until the next update....
Reference links for anyone seeing jitter
Bug: Jitter / Missing Steps · Issue #617 · Smoothieware/Smoothieware
Sbase and/or Smoothieware + DRV8825 drivers makes my motors very noisy and vibrating + grinding sounds!
I have to redesign the autofeeder method as they will not fit. The 0816 still seems like the best method rather than designing a custom autofeeder but as I wait for my FS90 and N20s I will have to figure out how to solve this problem.