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Hello all, it's been a week of 105 deg weather and air quality warnings from the smoke and I only managed to do a few test cuts this week.

Hand written gcode for a 100mm x 100mm square in both...

I have a full 4x8 router mill running and everything is dialed in and reliable, it's closed loop so I can guarantee no missed steps or mechanical issues. I just started cutting test pieces to make...

I am going to be building a larger laser cutter gantry and am not sure what size of linear shafts to get to support the Y gantry.

The gantry is only going to have the laser head, nozzle, and some...

I am writing an interpreter for the different geometry features in the dxf format.

I can not find example files with anything other than LINE. POLYLINE, and CIRCLE. I need to test out the BULGE,...

What do you mean "against each other with springs"?

The frame and motion components are 15 series 80/20 and will be clad in plywood to be fully enclosed.

I could see something like that working, eccentric spacers on the bottom and one side to snug it all up.

Any other ideas out there?

I have a stock of 1" extrusion without any of the v-rail, open rail, etc profiles. Its just standard mcmaster carr stuff and I am wondering what linear motion options are available to me.
...

Kelingin KL-350-48 48V 7.2A 350W switching power supply

New, no box, never got around to using it.

48V 7.2A 350W switching power supply. 120/240V selectable input.

Bought from kelinginc.net...

I am trying to make a DIY version of this non rotating focusing rig:


https://www.youtube.com/watch?v=Vsn0em5d-P8

Are there any existing projects that show similar internal helical...

How often should I be cleaning my mirrors and lens? I use the machine (40W) on weekends for ~2hrs total. I noticed my stock gold mirrors have char marks but I think that's because they are the stock...

"Someone" is the key. Probably just one guy...

I will ship it to anyone who wants it for S/H+$10.

281996

Brand new. Was purchased for a machine that had a fatal flaw in design.

120V to 240V input, 32V @ 23A output!

Shipping will be murder but if It doesn't sell I am tossing it in the...

My god thank you! I was getting so frustrated. You spend a ton on a program and tutorial series and not get the info you need is a real downer...

What I did was drag a rectangle to match the left...

Anybody here use CorelDraw? I have a massive usability question.

277496

As you can see I have a corner joint of T-Slot I am designing a bracket for. The shape of the bracket is a gear. I have...

Ill say its a plt file problem. My machine would do two passes if:
- shapes are not continuous. If its 4 lines and 4 curves it tries to profile each object. CloseGap of 0.1mm in laserdrw cut will...

I cut 3mm baltic birch last night. 10mm/s at 20ma (of 25ma max) with 20psi air assist. Too cold of water somehow reduces laser power as my ambient temp is 18c but I cut the best with the water at 21c...

As the topic says I have a K-40 with LaserDRW and I can not get it to engrave at anything besides 100% regardless of the shade of grey in my CorelDraw drawing. Heck I can make it pink and it will...

1) Does antifreeze increase waters heat transfer characteristics?

2) Usually you put a cup of bleach or two in water to stop algae forming. Will this harm the tube, etch the glass or anything?

Anybody seen this "new" style of mirror?
265192

It looks a lot like Epilogs style:
265194

Anybody seen these before? Will I need to modify the existing caridge to get the LightObject K20 air...

I have been talking to a Canadian supplier of these cheap laser machines and he is able to get one direct from China to my door for $650USD delivered to my Canadian address. The machine looks a bit...

How did you get all the rivets the same length so the material is not all wobbly?

Thanks for the offer but I didn't know it would be such a short trip. 450km. I might order a whole bunch of stuff and take advantage of the free shipping in the states.

Wiring is apparently the single most common and devastating problem with these machines. Wires just twisted together and not even under marrets. I plan to check every wire, cord and connector before...

Awesome! I will definitely be giving them a go once the dollar raises a bit.

I'm in Saskatoon and have never been to Regina, how long is the round trip between the two?

Does 70L/hr sound like enough flow rate for the air assist?

This guy is affordable but 70L/hr means nothing to me...

I recently gutted a FK Delvoteck wire bonding positioning stage that provided 8" x 8" at EXTREME precision and discovered some funky roller screws. First pic is what a roller screw looks like inside,...

Sold, thanks!

Mod can remove this now.

Wow I don't know what the heck happened but all the links you guys gave to machines are now "currently unavailable" and all the ebay prices have shot up $300! The same machines are now $850 + $150...

Keling KL-350-48

New, no box, never got around to using it.

48V 7.2A 350W switching power supply. 120/240V selectable input.

Bought from kelinginc.net a few years but I moved and left my CNC...

Pictures do speak a thousand words. That is a very smart setup and with the webcam, a very safe way to monitor your projects progress. Thanks for all the help!