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Thread: Engraving - Laser Diode
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20th October 2012, 06:14 PM #1
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Engraving - Laser Diode
Well i finally received my laser diode and tried it out today.I was looking for something that I could etch wood, plastic, etc and after a bit of looking i settled on a 800mW - 808nm red diode unit.
It comes with the TTL driver as well, so when i work out why Mach3 wont switch my spindle output on and off, i can then drive it with M3 and M5 commands.
The unit is switched on and off at the moment using a switch which grounds the output
I have included a few photos of it and the first engraving I did today, with a video on youtube (unedited) so sorry for the section which has the laser stuck on the bottom right.
I also am having trouble with getting the laser to burn at the beginning of the letter. I'll have to play around with the height a little to ensure i've got it at the optimal distance.
IMG_0039.jpgIMG_0038.jpgIMG_0037.jpgIMG_0040.jpg
The Youtube vide:
IMG 0036 - YouTube
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20th October 2012, 08:56 PM #2
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My son and I just watched the video and he was very impressed especially the music it made doing the S.
He also wanted to know if I could get one so we could line up popcorn on the bed and pop them one at a time
Warrick
(P.S. where did you get it and what was the cost)
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20th October 2012, 10:01 PM #3
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That's cool can you get the laser to have a finer cut?
Davidgiveitagoturning @hotmail.com
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22nd October 2012, 03:07 PM #4
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The popcorn maker is available from KaleCNC and the 800mw unit set me back $104 delivered
eBay Australia: Buy new & used fashion, electronics & home d
There are a lot more videos on this and the higher powered blue lasers. I thought for the price it was worth a shot, given post people were trying to flog Diodes for about $80 and this excluded the TTL driver and any Diode housing.
The start of the cut seems to be a slight issue as it has to be precise to get it going. The suggestion is that I use P1000 for a 1 sec pause at the start.
I can get the cut to be finer by increasing the feedrate and some subsequent testing shows that 200mm/min is quite good and keeps the burn churning.
I think for shading i should have bought the more powerful unit and i may venture down that path later or just bite the bullet and put together a 80W CO2 laser.
/M
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