Out of round on last cut

[Robin Hewitt]

Well, Cambam got the big heaveho when it wouldn't let me select all the lines from my dxf. Even my crummy attempt at a converter stitched the parts together automatically, it ain't hard.

Couldn't see a demo Mach 3, tried loading Mach 2 but it was enormous and all consuming. There were no wizards so that quickly got the boot to.

G Simple is starting to look pretty good, at least that works

[S_J_H]

If you've got £85 to spend then I can highly recommend SheetCAM for 2.5D stuff - check out www.sheetcam.com Cheers.

I also use Sheetcam. Excellent 2.5d software for the price!

Mach3 will run as a demo. It is limited to I think 500 lines of G-code.
Mach is a excellent controller. I don't use the wizards very often since I have sheetcam.

Steve

[10bulls]

Originally Posted by Robin Hewitt Well, Cambam got the big heaveho when it wouldn't let me select all the lines from my dxf. Even my crummy attempt at a converter stitched the parts together automatically, it ain't hard.

Hello Robin,

I'm sorry CamBam didn't work out for you, but thanks for giving it a go.

If it's not too much trouble could you please provide me with a bit more information where it is going wrong. I am about to put out a new release soon and have been trying to resolve as many bugs and annoyances as time will allow.

I have fixed a bug with the polyline joining routines which may have caused the problems you experienced. If you are up for another go, I can provide you with a development release to see if this improves things.

Thanks for your time

Regards

Andy (10bulls)

[Robin Hewitt]

Originally Posted by 10bulls If it's not too much trouble could you please provide me with a bit more information where it is going wrong.

Hi Andy

Oops! Didn't know you were here, bad day, angst, humble apologies etc

I was trying to do the plate nearest the camera in the piccy. I put the two outlines in to a dxf and opened it with Cambam.

It let me select the parts for one outline but when I tried to add the next outline it let me select them but only accepted the bits top left, ignoring bottom right. I floundered about for a bit breaking it apart, reimporting it, but no luck

Perhaps I didn't understand, love to try again. I like to saw off the excess but that means a lot of g-code editing because G-simple only works with rectangular blocks. I sawed and edited this plate from eight hours down to two and a half.

best regards

Robin

[10bulls]

Originally Posted by Robin Hewitt Hi Andy Oops! Didn't know you were here, bad day, angst, humble apologies etc

Crikey! I dread to think what someone with a 13k baker rifle would do to unwind after a 'bad day'.

I'm keen to hear of all the bugs and problems at the moment. I'm trying to clear off as many of these as possible for the next release so now is a good time to shout them out.

I use CamBam for all my CAM and CAD now (warts and all), as a penance to make me get on and fix all the crappy bits.

I think I know the problem you are having.

I'm afraid there is an 'intermitent' bug in this release where some drawing objects aren't 'accepted' by the machine operations. Saving the drawing, closing CamBam and reopening the file usually fixes this. It is proving a little elusive to track down. I do apologise.

If it's not that, then please feel free to send me any drawings to test.
@ 10bulls at gmail dot com

As to your original question regarding out of round.

In cambam you can spiral mill a hole by adding a drill operation based on a point. Tell it cutter diameter, hole diameter, and set type to spiral mill (cw/ccw). The horizontal and plunge feedrates control the pitch of the spiral.
I use this a lot. On the last pass it does a circle so this *may* result in a sort of finishing pass as the cutter 'springs' back into the stock as you pointed out. Just a thought.

[S_J_H]

Andy,
I know you have your own forum for cambam on cnczone, but I just want to say here that after looking at it last night I am very very impressed!

I am going to try it out and thank you very much for putting in that kind of effort and allowing other cnc enthusiasts to use it for free!!

Steve