A Few test cuts on my broken now fixed K40, 5mm and 15mm acrylic and some 3mm Ply.
You are making me sad! Can you give the settings for each of these? I keep going backwards. What was wrong with your laser?
It came from china this morning and the laser head was smashed off, large dent in the case and table bent up… so had some work to do today…
You can cut 5mm at around 5-10mm p/s at 15ma, 15mm is a bit tougher thou, I got through it on the 3rd attempt by cutting at 0.5mm/ps and 15-16ma…
And plywood 3mm at 10mm/ps and 12ma
Etching my dog I did at 150mm/ps and 10ma because I wanted it quite deep…
These are only my tests so if they are wrong…
Time to order some mirrors and a new lens and the all important air assist, me thinks…
Does anyone use coral laser, mine seems to crash when selecting the object manager…
Laser draw is ok, but I don’t think it supports layers…??
Why are you sad Kelly?
happy for you, Sad for me. I’m really struggling with the laser. I have built 2 CNCs (one from scratch), but Im really struggling with getting the optics right on my K40. Thought I was close last week, but seem to keep going backwards.
Thanks for the info Nick. Mine is definitely not where it should be power wise. I thought I was getting close but seem to be going backwards.
Mine has a Moshi board and the MoshiLaser software. I have a ton of the same kind of issues with crashing. If I can get optics right, I’m going to upgrade to Ramps/Marlin setup or possible even a DCS.
how in the world are you getting through something that thick!? i can’t even get through 1/8 stuff
I was glad mine didn’t come with the moshi software, remember even thou these things are ment to be 40w they are closer to 20w. I aligned mine in prob 30mins.
All of the mirrors came off after I got it to first clean them, and then adjust them one by one… I will order a laser power meter and get some accurate power mesurments.
Corey, its all down to speed and power, all those items were cut with a single pass.
So how slow are you cutting? I too am having issues with thicker materials like 1/8 inch melamine.
For 5mm I am cutting between 7 and 10mm per second
For some reason now I have upgraded to coraldraw 5x it makes 2 passes. The first pass it cuts it out fine no need for a second pass… still playing
One other thing make sure your lens is the right way up, mine was reversed when I got it…
And just for kicks
15mm cutting with a single pass!!
@The_Technology_Chann what version on the k40 do you have and what are the cutting settings
The one that’s pictured at the top of the forum…
Which settings?
@The_Technology_Chann your video is private.
@The_Technology_Chann your video is private 
amazing you are cutting 15mm !! wow
@The_Technology_Chann the second cutting is most likely caused by line thickness. Check your lines are .01mm
Ha I will have a look, Video now public, sorry…
You can see the smoke coming from the bottom, normally showing a cut right through…
Impressive @The_Technology_Chann Thanks for sharing