Been happily handibotting along, but I've hit a weird glitch that's baffling me. I have a vcarve pro file that is a trace of a bitmap. The toolpath is using the 90 degree V cutter set to do a single outline engrave pass at .0125". I attempted this on some acrylic and everything looked great until about a third of the way through. All of a sudden, the bit dug in about .25" to the material (in this case, through the acrylic and into my spoil board.) I looked at the spb file in notepad++ and in the SbEdit tool and all the Z axis moves were set to the proper heights. I recalculated the toolpath file, verified it looked good in Notepad++, and ran it with the 90 degree V cutter on some pine. At the same place in the tool path, the problem occurred again. In both cases, the animation of the toolpath looked great. Anything obvious I'm missing? Thanks, --thttps://handibot.com/forum/read.php?2,1053,1053#msg-1053Tue, 15 Sep 2026 14:57:16 -0400 Phorum 5.2.22 https://handibot.com/forum/read.php?2,1053,1067#msg-1067 https://handibot.com/forum/read.php?2,1053,1067#msg-1067
Just happened to notice this.

If you have not already figured it out ... my first guess would be that at some point before the crown there is a Z-up move that goes too high and is topping out. The router is running so you don't hear it ... that causes the Z to lose steps ... and reset to a lower level ... and then you get the gouge at the lowered depth?

Ted Hall, ShopBot]]> Ted Hall, ShopBot Handibot ForumWed, 22 Apr 2015 13:04:40 -0400 https://handibot.com/forum/read.php?2,1053,1055#msg-1055 https://handibot.com/forum/read.php?2,1053,1055#msg-1055 Mark Evans Handibot ForumSat, 11 Apr 2015 12:22:02 -0400 https://handibot.com/forum/read.php?2,1053,1053#msg-1053 https://handibot.com/forum/read.php?2,1053,1053#msg-1053
I have a vcarve pro file that is a trace of a bitmap. The toolpath is using the 90 degree V cutter set to do a single outline engrave pass at .0125". I attempted this on some acrylic and everything looked great until about a third of the way through. All of a sudden, the bit dug in about .25" to the material (in this case, through the acrylic and into my spoil board.)

I looked at the spb file in notepad++ and in the SbEdit tool and all the Z axis moves were set to the proper heights.

I recalculated the toolpath file, verified it looked good in Notepad++, and ran it with the 90 degree V cutter on some pine. At the same place in the tool path, the problem occurred again.

In both cases, the animation of the toolpath looked great.



Anything obvious I'm missing?
Thanks,
--t]]> deagan492 Handibot ForumFri, 10 Apr 2015 22:34:40 -0400