CNC Laser cutter from scratch

Description

- XY-table from mostly off-the-shelf parts (29x42cm tool area - almost A3 format)
- 3W 445nm (blue) laser diode module from dtr-lpf (able to cut 3mm black acrylic @ 0.5mm/s)
- My own design of RPi addon driver board (2xlmd18400 drivers on oshpark board)
- Software (gcode parser/executor) in Erlang (also does svg rendering of output)

Work in progress: currently making motor mounts and adjusting the smoke extraction.

Components

1 × NDB8785 laser module from dtr-lpf

2 × 16x600mm shafts

4 × SCS16UU Linear bearings

4 × SK16 Shaft supports

2 × 12*400mm shafts

Project Logs

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New laser!
attah • 04/07/2015 at 19:26 • 0 comments

The old laser decided to vanish in the mail, so I got a new one. Works great!
Now on to making motor mounts in acrylic and tinkering with the smoke extraction.
I switched g-code generator to DXF2GCODE so I had to adjust the program a bit, but it was well worth it since it produces much nicer shapes than the InkScape plugin i used previously.

View project log

Discussions

Michael Vowles wrote 08/27/2015 at 13:33

hi mate have you tried thin plywood/particle board? Also what sort of cost did this add up to, if you don't mind me asking.

Are you sure? yes | no

attah wrote 08/27/2015 at 16:02

Hi! I haven't, sorry. I'm a bit pressed for time and I still can't quite decide on a good fume extraction. I'll try to publish results once I do. A quick summation of the component list shown on here gives about $900 USD. So maybe $1200 with motors and driver+pi, fancy cables with drag chain and so on.

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Michael Vowles wrote 08/27/2015 at 20:35

No dramas mate, was just curious. That's not a bad price, looks good!

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Kert wrote 02/11/2015 at 09:26

That seems interesting. Ability to cut 3mm acrylic is already quite impressive (and useful in practice for many projects I'd imagine) considering that the diode is rated at 3W.

Are you sure? yes | no

CNC Laser cutter from scratch

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New laser!

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