- Need Help!- Flashing GRBL To Uno board + unsmooth jog
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Flashing GRBL To Uno board + unsmooth jog
Disclaimer: First time trying to flash and configure new setup of Uno board, CNC shield...
My old (and first) Uno board (preloaded with GRBL) died on me so I ordered a new Uno board... Or atleast thought it was an original Uno board, but to my surprise it turned up as a (I think) chinese rip-off (Geekcreit Uno R3). Eitherways...
My issue was that I had no serial connection and possibly a few drivers died - my approach was atleast to swap it all out.
I can now connect via UGS and jog in all directions! HOWEVER - there's something weird going on... When I jog the movement doesn't seem smooth like before, it seems very "sluggish"/slow.
Settings are the same in UGS as before, so feed rate etc. the same.
Could I be missing some steps in configuring the Uno board/CNC stepper shield (v. 3.0), driver or similar? (first time dealing with something like this)
What i've done: (from scratch)
1. Put together new Geekcreit Uno R3 board + new CNC Shield (jumpers etc. placed as before) + 4 new DRV8825 drivers (configured correct 0.65 voltage)
2. Flashed GRBL 0.9j to the Uno board (via XLoader)
3. In the Arduino Ide (software) connected to GRBL in the terminal (serial monitor) and verified being able to send GRBL commands
4. In UGS > connected > and did test jog in all directions
Im noticing the Uno Board is appearing with red LED lamps and not green as with the original (probably toasted board). Not sure if it means anything bad...
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Re: Flashing GRBL To Uno board + unsmooth jog
Ahhaa ofcourse, I needed to adjust the GRBL settings.
However in UGS, im now getting the following error: (it seems to connect and then it throws the following error in a loop)
error while processing response <<Alarm,Mpos: 0.000,0.000>> error while processing response
Also in the Arduino terminal I wasn't able to define the following settings since they don't exist in the settings list I see when doing $$:
$30 = 12000
$31 = 5000
$32 = 0
Any advice?
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Re: Flashing GRBL To Uno board + unsmooth jog
Try flashing again. Might of got currupted during programming. It should of verified after programming though.
These lower cost clone UNO boards usually have the CH340 serial chip. Not always the most reliable. I hav multiple pc’s here and have noticed that some just don’t play very well with that serial chip. Probably a combination of serial drivers and USB chipsets.
I never have a issue with genuine UNO boards so you may have to try that out if you can’t get it to work reliably.
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Flashing GRBL To Uno board + unsmooth jog
Any reason you are using an old version of grbl. The latest 1.1f is really much better. May even help with your problem.
I don’t use UGS so not familiar with it. I use grbl panel but I don’t think there is a MacOS version.
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Re: Flashing GRBL To Uno board + unsmooth jog
I’m not sure if UGS supports tool change but there are other gcode senders that do. You might try the one that shapeoko cnc use.
Or edit out that gcode line before running. I’m sure fusion360 can be set up to not output tool change commands with a compatible grbl post processor.
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Re: Flashing GRBL To Uno board + unsmooth jog
You need to change $3 configuration. It’s the direction port invert setting.
- Need Help!- Flashing GRBL To Uno board + unsmooth jog
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