Author Topic: GRBL post processor  (Read 31551 times)

Offline dh42

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Re: GRBL post processor
« Reply #15 on: March 02, 2020, 21:04:41 pm »
Hello

Your machine is driven through a PC and a "Gcode sender" software or have it's own on-board controller like a 3D printer ?

If it is driven through a PC and a Gcode sender, you can try this plugin to drive the machine.

http://www.atelier-des-fougeres.fr/Cambam/Aide/Plugins/GRBLmachine.html

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David

Offline onekk

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Re: GRBL post processor
« Reply #16 on: March 03, 2020, 16:33:11 pm »
A little word of cautions, many GRBL incarnation, don't use the latest version that is 1.1.

1.1. is different from 0.9 mostly on the controll mechanism between GRBL and the sender.

more problematic is that many cinese implementations, use the old 0.8 or even more old, some old versions have a limitation of 50 character in a gcode line, this limit could be easily reached using too much decimal places in the precision.

Many people have encountered problem due to this behaviour.

Regards

Carlo D.

Carlo D. (onekk)

eShapeoko #343 750x1000 mm + GRBL + bCNC + CamBam

Offline pelanj

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Re: GRBL post processor
« Reply #17 on: November 19, 2022, 20:00:37 pm »
Hello, I used CamBam with GRBL post processor and my GRBL bases router successfuly.

I had to make a fresh install on another computer and now I am getting GRBL error 33. I found out it is related to arc tolerances - so I am pretty sure I had this solved long time ago, bit I do not remember how. It must be in the settings, since with the default post processor all is fine. My original settings are lost unfortunately. Are there any default recommended settings? I should have been warned by the Camotics simulation. It did also report errors about arc fittings when I switched to GRBL post processor.

Offline dh42

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Re: GRBL post processor
« Reply #18 on: November 19, 2022, 20:51:22 pm »
Hello

If you're working with mm, try those values

Maximum Arc Radius = 1000
Minimum Arc Lenght = 0.01

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David

Offline pelanj

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Re: GRBL post processor
« Reply #19 on: November 19, 2022, 21:21:58 pm »
Hi David,
these numbers were already in - but I think I found it - the problem was in the number format, I remember reading somewhere that GRBL needs 3 decimals. I copied the number format from the default post processor and no more errors in Camotics. So I think I will be getting no more errors on the machine as well.