Thread: My Machine
You'v got 48 hours to comply Michael, i'v got a DVD Burner and i know how to use it, its your choice !.Me
John S -
As I don't wish to teach people how to suck eggs please ask a specific question!!!!!
There are loads of tutorials on the net for building a laser pointer with a DVD diode, thats the hard bit!!
Where do you buy them?
What to use for a power supply?
How do you focus it?
What will it cut / engrave given the power?
When are you coming to fit it and wire it up for me ?
Is that enough to work with ?:heehee:John S -
01-06-2009 #46How do you focus it?
Power - The one I used was 180mw 635nm (visable red)
Where to get/PSU & focusing all here http://cgi.ebay.co.uk/300mW-650nm-Re...3A1%7C294%3A50
This includes everything you need, really easy. Comes with lens & body which is 12mm od so you'll need to fashion a clamp for that. The lens supplied is plastic however so was the one I used.
To drive it, simply give it 6 - 20v when you want it to fire. I would reccomend either a transistor or solid state relay to turn it off / on as switching speeds could get to high for a mechanical relay.
Focusing is easily adjusted by rotating the lens at the end of the unit.
At 180mw - 300mw you will only be cutting foams up to a few mm's and vinyl / stickey back plastic.
for engraving, Pretty much anything organic eg; leather, Wood etc. Also most plastics but results will vary depending on the colour of the material, A red laser will hardly leave a witness mark on red plastic and would struggle to set fire to bright white paper. However if was a slightly darker colour paper would ignite almost instantly.
John S. When ever you like mate!!!!
There also designed to be a couple of mill off the surface which could presesnt quite a problem.
Once your diodes in your Z axis and focused to produce the smallest spot size at 50% z axis travel, you can then jog your Z up and down to focus.
The beam created with those Axiz 12 x 30mm lens looks like an hour glass, At the point where the two sides of this hour glass cross is where your material surface should be.
Ignore the steering mirror.
By therouterlady in forum Manufacturer NewsReplies: 0Last Post: 18-09-2013, 04:28 AM