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Hi and welcome, Great salvage operation and you have some of the parts working already. As previous post have suggested, a 445nm diode of 1.5 to 2W would get you going and will cut paper and engrave thicker materials. Also safer to work with than a invisible CO2 beam. Be careful of smoke, soot...

Hi Bung, For $170 the PJ does a great job, much more than the price would suggest. I tried the link to bmp2ild, but I couldn't get it to open...any ideas? It looks like the tracing double lines everything, giving the galvos twice as much work as then need to. Can bmp2ild run just single line...

Now, that is cool:beer: I consider the nit well and truly picked:D :) ATB MM

I get some of that, (don't understand 'real CW doesn't exist') but the discussion was regarding white "coherence". 532 and 1064nm would not make white.;) :beer:

Interesting, The graphic shows the various frequency waves being in phase at one point in time (time zero) for a infinitesimal fraction of a wavelength. Technically correct, but we're talking CW lasers here, so that is splitting hairs on nits :na: ATB MM

Well,.... the SPI going from 4mhz to 8mHz increased the speed from 13.6Kpps to 14.6Kpps. Bit dissapointing:( Next step, might try some Rasberry Pi.

:beer:Nice job Bungy What is the number of the chip nearest the SD card? (fine pitch jobbie) ? ATB MM

Hi Camvo, Looks good, I need a correction board, so I'd be interested in seeing the final result. Hope you get the PSU soon (want to see that RGB beam:beer:). I've been thinking about the 328 and if I can squeeze any more out of it. The SPI is running at the moment at 4mhz and this can be...

I think the comment BB made was regarding users who have driven a LED with the DAC pin and damaging the OP. Canvo is not doing this, he is using the DAC to drive the scanner signal and an opamp would give some additional buffering protection:beer: That circuit showing the transistor needs a...

Try taking the photo in the dark / lights off, and if you can turn the power of the laser down. It might force the camera to take a longer exposure.

My camera is a canon SX100 - basic compact jobbie with manual mode. Set the shutter to say 1/8sec and apperture to say F8 and shoot away. Rule is if you scan at 10hz (1 scan takes 1/10 sec) then the shutter speed needs to be slower than this - set at say 1/8sec. OR 20Hz, then shutter meust be...

Looking good:beer: Your scan rate looks much faster than I can get. 2 vids show the comparison to yours. I've maxed out on the ATMEGA328:yabbem: I recon you'll be able to get a lot more out of the Due. Maybe the analogue write command is slowing the Due???? The blanking code wasn't quite right...

Hi Arg, Just use some nylon washers (or Macor ceramic) under the head of the nut - or sandwich the nylon washer between two steel washers to prevent it form being chewed when tightening the nuts down. Make sure the hole give sufficient clearance so the bolt does not make contact. ATB MM

Hi camvo, All the floating point and sine calcs are a huge overhead, I'm sure the Due can output complicated graphics, but only from pre stored frames. Attached is the ino file I used for the girl logo. It has over 1600 points and the little 328 can scan it, albeit at 10hz so there is...

Hi Camvo, Thanks for the info. I got the ILDA from LaserFX site (I think) There are loads of files on Photolexicon too. Attached are the ILDA files and also a file that I load into the arduino that has a simple Blank / xy / co-ord format. (Change the extension of the ILDAtest_Copy to .ild)...

Hi Camvo, That laser looks good, whats the beam / spot look like (good alignment?). I done some testing with the G120 and the ILDA test file. I load the file into the program, this is loaded into flash memory using progmem (saves using the limited RAM). The G120 scanners do a faily good job at...

Hi Camvo, NP, I was just wondering how much more processor capacity the Due has over the 328. Good to see things working good now. I'm using a simple red for testing - only a 150mw 650nm laser from Odic force. It has a small separate PSU with a lead for blanking. This one 200mW Red (650nm)...

Congrats ! Glad you got it working :beer: I think I'll order one of the Due's - looks like a nice board The 328 with the SPI DAC hasn't got enough guts. I have been messing with the ILDA test patern, it has 1191 points and the 328 is on its limit. (still very good for such a little processor)...

No problem... #include <Wire.h> #include <Adafruit_GFX.h> //OLED lib #include <Adafruit_SSD1306.h> //OLED lib #include "SPI.h" // necessary library for DAC const int OLED_CLK =A5; const int OLED_MOSI =2; const int OLED_RESET =A4; const int OLED_DC =4; const int OLED_CS =3; Adafruit_SSD1306...

Hi Len, I might go for a 15k set depending on the cost - also interested in a 35k set. ATB MM