Duh, I found it. Intermediate link… Another newbie mistake… I am struggling, but will get there eventually… Thanks!!
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I’m having an issue where when my lowrider is moving from zero to its first peeling operation it ramps down into the workpiece before it gets to the point that its supposed to helix down into its first peeling operation. It’s a gradual calculated lowering at a very low angle…like 5 degrees or something. So I click start and the gantry lifts 2mm and then begins to travel to its first spiral down point but it ramps into the stock on its way there. The plunge angle for the selected tool is 90degrees.
Here’s the beginning of the gcode:
;No. 1: letter c
G00 X191.3346 Y101.4770 F2100
G00 Z0.5000 F480
G01 X191.3302 Y101.3584 Z0.4781 F420 S16000
G01 X191.3169 Y101.2404 Z0.4563 F420
G01 X191.2948 Y101.1237 Z0.4344 F420
G01 X191.2641 Y101.0091 Z0.4125 F420
G01 X191.2249 Y100.8970 Z0.3906 F420
Theres some gcode missing there. The important bits are before that, I think.
Is it possible your Z just isn’t that level? 2mm clearance may be too low, and it thinks it is moving completely flat, but it is actually dropping a little as is moves in xy. 2mm over 250mm seems like it would be just about noticeable though.
Ahh, sorry. Still learning what’s what with gcode.
G90
M03 S16000
G00 X0.0000 Y0.0000 Z0.0000 F2100
G00 Z2.0000 F480
;No. 1: letter c
G00 X191.3346 Y101.4770 F2100
G00 Z0.5000 F480
G01 X191.3302 Y101.3584 Z0.4781 F420 S16000
G01 X191.3169 Y101.2404 Z0.4563 F420
G01 X191.2948 Y101.1237 Z0.4344 F420
G01 X191.2641 Y101.0091 Z0.4125 F420
I’ll double check my z axis in the morning. I may have just forgot one time. I’ve been using the cnc off and on all day for the last two days and haven’t had an issue, but this was a newly generated code that I hadn’t run before. Maybe I jumped to conclusions before checking myself. Guess I need to follow a written checklist anyway. Is there one on this site somewhere already made?
Thanks for the fast reply.
Gcode looks ok.
Yea, I must’ve been tired. I didn’t level my Z axis before starting. I salvaged it and it’s running smooth now. All except for dust collection. That dust collection port is constantly getting clogged. Also, my bearings are constantly getting build-up on the x axis. After reading through the forums, I’ve found to use acetone and potentially tighten bearings to see if the inhibits build up on the contact strip of the bearings. I’m almost finished with a full 9 hour job, by far my biggest yet. I’ve been babysitting all day. Tomorrow i’ll look into solutions for the above issues.
Wow 9 hours of babysitting is intense. I don’t even do that long of stretches with my kids!
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That’s called “parenting”. My wife says it’s hard work. I’d give it a go, but we only have teenagers now, and I don’t like the sass…
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My wife got mad at one of our friends (M) who said he was babysitting his own kids. So know whenever I am around them, I like to point out that I am “babysitting”. It’s no longer funny, but I think it was at some point.
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Thinks for this tutorial. I can follow it except for two questions.
First, why is there a second finishing cut done for the cuts that go all the way through the material, which are the part’s very outer cutout and the ‘hole’ for the sd card? Seems like you just need one cut going all they way through the material and don’t need a .2mm finish cut. Why not just one cut that goes through material?
Second question is on the estlcam screenshots of the finishing cuts, why is the red area (the cutout area) different between the corresponding rough and finishing cut. It happens all the cases where you do a rough followed by finish cut? For the rough cut the entire area to be cut is red, yet when doing the finish cut, the middle part is not red anymore? Is that a bug in estlcam or am I not understanding some difference between the rough and finishing cut?
Thank you for the insight!
Mike
Finishing passes at full depth make for great surface finish with tight tolerances. This allows for faster material removal overall.
Second Q, the finish pass is just on the edge, XY, not in the Z direction.
Thanks Ryan. After posting this message, it dawned on me that the finishing wasn’t just the Z axis, then it all made sense. For some reason I was thinking it was only in the Z direction. Kind regards. Mike
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