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I’m trying to peck drill a series of some 50,000 holes (.018” diameter) in a thin sheet of Delrin plastic. I’m using Fusion 360 to create points which are used for drilling in the CAM section. I...

For the little amount of CNC machining I do I've been happy to continue using BobCad V21.4 except that recently I'm unable to peck drill.
Normally I'd select a point or points on the 2D drawing...

I have a cheap Chinese 80 watt CO2 laser and I’m getting a sloping cut when I cut or engrave 1/8” thick Delrin plastic. I don’t know the focal length of the lenses my laser came with. The cut is V...

Hi Dave,
With regard to drawings I use AutoCAD to create my .dxf files and I also have CorelDraw so I’m good there but thanks for the offer to help, however I still don’t fully understand the...

The problem is I'm engraving watermarks (raised areas that block some holes) on the top side which have to be engraved first. I've tried flipping the sheet for a second pass but registration was...

Fantastic, I did find that when I depressed the laser button it seemed to make a nice hole but I wasn't sure how to do that otherwise. When I choose the hole option under Mode I get Set hole options....

I’m trying to cut or engrave a grid of round holes .017 inches in diameter .025” on center. Think of a window screen but with round holes. I’m using 1/8” thick Delrin sheet. The problem I’m having is...

Skip,
I'll try those settings today. You would think that having a smaller stepover would produce a cleaner cut, but maybe it causes the problem we'll see.

Brian

When I raster cut Corian it doesn't cut a clean flat surface. I'm left with little mountain peaks everywhere it cuts, almost to the height of the top of the material. I presume this has to do with...

What a great resource this group is. Here’s my problem. When crank up the speed to cut a fine lace like patterns in paper I get jagged lines and I can see what’s happening. When the head moves from...

Thank you all for your responses. Laser cutting is new for me and the documentation that came with my Chinese machine is poor - you get what you pay for, in this case practically no support. If I...

Has anyone been able to laser cut paper without leaving a burnt edge? I have a Rabbit 80 watt HX1290SE and whatever combination of power and speed I use I get a burnt edge. I can get it down to...

Is there an easy way to set the origin on a rabbit laser cutter? I want cut images on a piece of paper so registration is important. If I’ve moved the head for a new project and then want to return...

I'm the one who asked this question and after installing updates for Mach3 the problem is gone, a least it hasn’t occurred yet and it’s been awhile. The only thing I’m doing different is I’m now...

When I cut a square frame of ¾” thick MDF using a ¼” cutter the finished piece is .05” larger than drawn on outside cuts but only .005 to.01” on inside cuts. Does this indicate backlash is present? I...

I would like to create duplicate parts without repeating programming each time. For example I produce the g-code in BobCAD-CAM and it takes me say 10 minutes to program the one part. Now I want to...

I’m having problems with a runaway gantry while jogging. To jog I press the left mouse button on one of the three arrow buttons on the mach 3 screen. When I release the left mouse button the axis...

I'm looking for woodworking joints that can be created on my CNC machine while the worked is mounted horizontally. I've read other threads where the boards are mounted vertically in a vice with holes...