Hi! Encountered strange behaviour. When moving head using G commands or using Repetier-Host manual control when about X -20 Y-40 head lifts for a ~0.1mm and when I head back to positive Y it goes down again, one of the towers just stops totating stepper for a breef moment. Mechanicaly all is good, belts are new, tensioned, Im using linear rails. Updated to new firmware. What can cause this behaviur?
Just filmed woth high fps camera, its not belt slipping but stepper motor stopping for a fraction of a second. And exactly when crossing X -20~30 Y-30~40. So it must pe software related. May be bad stepper drivers?
Replaced M666 parameters in config-override from my leveling to zeroes (M666 X0.0 Y0.0 Z0.0) and that behaviour vanished. I believe there is something wrong with delta leveling trimm.
No, grid leveling comented out. Here is a link to my config file and config override/ Using Sbase, but there practicaly no support so asking here. Im tried latest smoothie firmware and older.
About your problem, the MKS board runs at 100Mhz, but Smoothie is optimized heavily for Smoothieboards which run at 120Mhz, so if this is a firmware bug it’s probably one that happens only on MKS boards so it’d have a very low priority of getting fixed. This is especially true as this is a delta related problem, and delta is very processing-intensive.
Can you tell me the exact text result of the “version” command ?
Also I just watched the video, and I can’t see the problem in it. Could you re-do it with a different point of view ? ( one where the Z axis is viewed up-front )
There is a slight move up when printer head in red rectangle. just about 0.1-0.2 mm, but command was only to move in -Y dirrection. That small pause in movement at 0:22 is where it moves up.
I know that MKS boards dont get support here much, but its my last hope. With this glitch printer is inoperable.
How to send this command? Tried with pronterface but it dont recognize it. Im on windows.
I’m sorry but this very very much sounds like a mks-only problem due to them using the inferor microcontroller on their board instead of the normal one. We have no report of anything like this on the non-mks boards, and it sounds like a plausible symptom of how they designed the board …
There are many sellers all around the world : http://smoothieware.org/getting-smoothieboard
( note Robotseed is the main sellers and is experiencing server problems, so you can’t order through the shop, but if you email stephane@robotseed.com he can sell you a board anyway )