Search found 148 matches

by DRobs86
Thu May 12, 2016 5:09 pm
Forum: Discussion
Topic: Problems milling aluminum 6061
Replies: 6
Views: 2120

Re: Problems milling aluminum 6061

Some endmills seem to get chipweld nomatter what. It depends on their coating abd composition. I have some cheap chinese end mills that will not cut aluminum without it gallingbup the flutes. I can switch to another brand and cut with no problem. It csn be cut dry, but I do recommend a lubricant. I ...
by DRobs86
Tue May 10, 2016 4:35 pm
Forum: GRBL
Topic: Confused about the G54 command for resetting home position
Replies: 12
Views: 3402

Re: Confused about the G54 command for resetting home positi

Thanks for clearing that one up cv. My memory lead me astray. That is a bumner on C3D and WCS.
by DRobs86
Tue May 10, 2016 1:25 am
Forum: GRBL
Topic: Confused about the G54 command for resetting home position
Replies: 12
Views: 3402

Re: Confused about the G54 command for resetting home positi

After I home device to x= -5, y= -5 and z= -5, I then jog the mill bit to where I want my new zero starting point on my workpiece. Lets say it is now at, -200,-250,-10. Then I would rezero and start work. I would write these numbers down and if I have to go over the piece again after changing the b...
by DRobs86
Fri May 06, 2016 4:46 pm
Forum: Electronics
Topic: Driving a laser
Replies: 2
Views: 804

Re: Driving a laser

Thanks for the reply. I was hoping you would chine in. I knew about D13 and I could fees that signal directly to the gate, but I figured I would rather control it manually. On another topic....on the CAM side I havent looked at many options (i will have to check the wiki), but I figured I could just...
by DRobs86
Fri May 06, 2016 11:42 am
Forum: GRBL
Topic: Will grbl run a beefier machine okay?
Replies: 19
Views: 2981

Re: Will grbl run a beefier machine okay?

cvoinescu wrote:"Official" GRBL runs on the Mega. All you need to do is change one setting in config.h!
I guess I have had my head in the sand. Thabks for clarifying that.
by DRobs86
Fri May 06, 2016 4:18 am
Forum: GRBL
Topic: Will grbl run a beefier machine okay?
Replies: 19
Views: 2981

Re: Will grbl run a beefier machine okay?

Someone has ported 0.8 versions (i think) to the mega. I think the persons handle is Letarte, but I could be wrong. I know that I have installed grbl onto a 2560 and tested it using his work. With that said, I am not sure if he is keeping it up to date and it sounds like he doesnt have a need to if ...
by DRobs86
Fri May 06, 2016 4:04 am
Forum: Electronics
Topic: Driving a laser
Replies: 2
Views: 804

Driving a laser

It has been a long while since I have designed any circuits. I am looking to drive a laser with the spindle enable pin from grbl and a CNC shield. I am looking at maybe using one of those 300ish mW TO18 package lasers. They seem to usually work on 2ish volts. In the interest of simplicity versus eff...
by DRobs86
Thu May 05, 2016 3:52 am
Forum: Discussion
Topic: Transposing and rotating G Code
Replies: 12
Views: 1737

Re: Transposing and rotating G Code

Excellent. Thanks. I should have checked thebwiki first.
by DRobs86
Thu May 05, 2016 2:49 am
Forum: Discussion
Topic: Transposing and rotating G Code
Replies: 12
Views: 1737

Transposing and rotating G Code

I often have the need to rotate G code in order to fit a random part in what I have left of a piece of stock. This is not planned in advance, or else I would nest it prior to my CAM work. Is there anything out there that reliably rotates an existing G Code file. I would be fine with a simple transpo...
by DRobs86
Tue May 03, 2016 4:59 am
Forum: Discussion
Topic: Experiments in aluminium (6082) cutting on an eShapeoko
Replies: 6
Views: 1346

Re: Experiments in aluminium (6082) cutting on an eShapeoko

True. I was also going by the 90 cents per endmill price. Lol.