I have used the GRBL post processor and I know how to find and load the Maslow post processor but wonder why Fusion does not list it in their directory of post processors and when found, say it is not for release.
I have used it and works great
The Maslow post is better than the GRBL for this machine. There are certain quirks of the machine’s kinematics which can be compensated for in G-Code. This should result in the machine running better, and have less potential for errors.
GRBL is a way more common post. Maslow is still pretty niche at this point. In fact, a lot of commercial machines even need custom posts written for them.
I have been using the GRBL. Where do you get the maslow version and is there a forum post regarding tweaks needed if any? I did not know about the maslow version.
Download it here;
https://cam.autodesk.com/hsmposts?p=maslowcnc&_ga=2.10047922.663214000.1595640880-630422199.1595640880
1 Like
Thank you. Now that I have it loaded, is it good to go or is there some tweaking I need to do?
What should you do different than a GRBL to make it better for a Maslow?
Just to be clear, I sent you the link as you wanted it. I’m planning on using the Maslow PP “post processor” but currently still using GRBL (and it has been working just fine). To be completely accurate I’m just working my way through the new Fusion360 UI so I’m not using anything currently. That being said, comparing the Maslow PP Gcode to the GBRL PP Gcode, the Maslow looks to be a stripped down version of the GRBL code. They have subtracted the cooling codes, G54 offset, G28 return to reference, etc. so it’s a simpler code. I’ve not had an error using GRBL so the Maslow GC must be ignoring any non-essential, not salient to Maslow G-codes. My goal is to design/cut a simple object with the new Fusion 360 UI and then process with both post processors and compare the GRBL PP Gcode to Maslow PP Gcode. My recommendation, for what it’s worth, is that I would use the Maslow PP as is, and see and then let me know. I’m planning on using it as well without any changes when I get there. Jon
1 Like
10-4 I will try it out as soon as i get ready to make my next cuts.
Did my comparison today between Maslow PP and Grbl PP and found no difference in the cuts. Here is a video of using the Fusion 360 with the new UI to make this happen. https://www.youtube.com/watch?v=uYEdIK2DvIA
2 Likes
So today I tried making a cut with the Maslow pp and the machine wouldn’t do anything. Re posted with grbl and it running smooth.
Any ideas why one would run while the other wouldn’t. I noticed the Maslow pp file was twice the size of the grbl pp
I don’t understand why the Maslow PP would be larger than the Grbl file. The same design I processed with Maslow was shorter by 3 of 4 lines than the grbl/grbl generic file when I processed the same design. You had the same design but just switching the PP caused the larger file?
Correct. And it bogged down ground control for some reason. I don’t know if it’s something in fusion or what. It’s very strange. I’m gonna play around with some more of my projects and see if it does it to all of them or some. The project I did it on was a 3D carving. A lot was going on using 3D adaptive clearing. The grbl was ~450 kB. The Maslow pp was ~900kb
I’ve only compared the post processors with designs for 2D contour milling so this is beyond my current level of experience.
Well then this is good info to know. Maybe the 3D contours are too much for the Maslow pp. When i get a chance to look at it this week i’ll let you know.
Been busy with z-axis upgrade. I was about to run a test print and thought i would show you something.
exact same files in grbl and maslow pp… how do i look at the gcode so i can print out the differences to see whats going on. Thats a huge difference.
Looks like a straight line or arch could be made to tiny little segments. I use bCNC to look, because the editor lets you select a line and see the corresponding g-code for that line.
Can you pack the g-codes i a zip file and upload them? I will take a look.
Kind regards, Gero
Maslow Cable guide Maslow and GRBL PP.zip (95.7 KB)
Here you go.
Bahrain .nc forensics is releasing a preview of the first results:
- GRBL-PP .nc has 1126 lines of g-code
- Maslow-PP .nc has 11742 lines of g-code
- first inspection with bCNC confirms that the first G2 command (1 line) in GRBL-PP.nc is broken down to over 40 lines in Maslow-PP.nc
Interesting is that the Maslow-PP.nc still has some G2 and G3 commands, so not all are broken up.
~~Additional info: G2 and G3 support has been merged into the Maslow Firmware Master G2/G3 support in May 2020, the last release of 1.26 was in February, so I guess it is not in there. There is an open pull request for WebControl that my guess just needs more confirmed tests? --> Support using radius R in G2 and G3 commands
I have lost track how the firmware (in specially the holey firmware) is maintained and where it is located, so I can’t tell if G2/G3 is supported there. More investigation is required.~~
Kind regards, Gero
Edit: Correction, the above mentioned links are for adding Radius instead if I/J. G2/G3 z axis coordinated move was added on 27 Oct 2018 so supported by latest firmware.
My Fusion kept wiping out the Maslow PP, so after a couple projects, I just switched over to GRBL. I’ve never had any issues with it.
I started experimenting with more fancy things like ramping my plunge cuts. So when I tried going back to the Maslow PP recently I found, yes, it breaks it into segments and feels more jerky to me.