@geodave i took your advice and ordered some extra 2060-500mm x 2.
Currently im using the NEJE N40630 Module (7.5W) with a Arduino Uno+CNC Shield v3. I flashed it with prebuilt openbuilds GRBL firmware for 2 axis only. This module came with a really nice aluminum sliding slot to adjust Z height with a single M5 screw.
for the brain Im using v1Pi that you recommended on an old raspberry pi 2 to control it via wifi but havnt settled on a slicer. I have a mac so probably go with Lightburn.
Question⌠are you able to create/slice work on Lightburn and then send it automatically (via API or something) to the V1/Raspberry pi instance or a shared folder? or do you have to do it manually?
You might ask @dkj4linux about that. In message of #100 in this thread, he is using v1Pi & uses lightburn to create the gcode & send that to the v1Pi. I am currently creating my geometry mostly in an AutoCAD clone, CorelCAD & importing the DXF file to lightburn. I use lightburn directly on a laptop to send the controller over usb cable. I tried v1Pi early on, but this setup is working ok for me now.
Thereâs a way to set up a watch folder on the v1Pi setup but I think you have to enable Samba so you copy files to it using a file browser. Then youâd save the gcode to the watch folder on the Pi and then load it using the browse button in CNC.js.
OK, Iâm ready to see the first person who laser engraves the V1 logo on a toothpick⌠Ooo, or maybe that MPCNC image Ryan uses at conventions? You might need a smaller laser.
Got the parts and finished the upgrade to 2040s. Much more stable now.
I aso got lightburn but the negative coordinate system is kinda kicking my butt right now. Been able to use offsets to mark 0,0 where the machine homes (x,y limit switches) but it randomly keeps ramming into the switches. And just the whole layout position stuff hasnât sunk in yet.
Just gotta play with the settings I guess.
What kind of base are you using in horizontal mode? Would getting some sort of thick chicken wire/ grill base be a good idea for diode lasers?
Or just some flat sheet of aluminum or something ?
I was on vacation for a couple of days & just got back. Not sure what you mean by negative coordinate space. I had issues with limit switches, so didnât use them. I just have some 1/2" plywood currently for my horizontal base which shows in about message #196. In #275 you can see a grid I burned into it for reference when laying out what I wanted to engrave.
Here is your toothpick engraved Jeff. I had it at 30% power for the 1st one running at 1200mm/min & acceleration is at 100. I was waiting for it to burn in half, but never did. I had the laser probably 3 inches or so away on the 1st couple of burns since the holding cylinders around the part would get hit by the laser. I changed the cylinders to my smaller ones & moved it quite a bit closer & ran the last couple at 5% power & same other speed settings. You can read part of the 2mm high text. I shot a video of some of this, but might have to reshoot it before uploading.
Guess I could try the V1 logo as Bill suggested. I had a copy of this logo from awhile back in dwg format. I scaled it down to circumference of toothpick & added some fill lines in CorelCAD as the single lines might not show up much. Lightburn estimates 9 seconds, but probably take a minute or so to burn.
I tried the logo yesterday, but it did not come out well. I have some 3mm diameter bamboo skewers that are 4" long which it might come out on & might be able to try that today.
I spent more time editing the video this time & should be a lot better than previous video. I also speeded it up during the longest burn so it is not so boring.
Hey @geodave quick question⌠i noticed in a recent post you changed $101 to 200 ⌠up from 160⌠is this only for the rotary setup which needs fandangling to work with lightburn? or are you using different stepper/drivers for x/y?
I have GT with 20T Timing Pulley and 1/32 mm micro-stepping(DRV8825) so i thought my $101=160
just checking to make sure.
Thanks
$101=160 should be correct. I had changed that while I was testing rotary setup. I now have rotary working on Z-axis, so I donât have to change that on each setup.
Thanks. I tried some 3mm diameter bamboo skewers today, but didnât have very good luck with those. Really need a smaller diameter laser to get more detail. I am going to move onto engraving some ceramic tiles next.
