Recent content by OldNo7

If you go the sound card route you need one that does 5.1 surround sound. Each speaker output is hooked up to either the analog in of a laser driver or an analog input on the galvo driver.

I wonder how this will affect us here. What patents does China own that have to do with Lasers? Should I bite the bullet and buy a cheap laser cutter/engraver now while I still can? Or will these type of things be unaffected...

I just looked and the datasheet for the ATSAM4S2B does have a timing diagram that shows the pin toggle during a watchdog timeout. It doesn't mention it occuring anywhere else. However if the DAC doesn't have a reset or clear pin than it doesn't really matter. I just purchased one from...

The question I had was if a watchdog reset occurs does it drive the reset pin low? If so then you can/should tie it to the reset pin on the external DAC (with a pull up resistor). So that the lasers shut off as soon as reset starts.

On another note have you looked at LaserShark and OpenLase? LaserShark also uses LibUsb. It may be worth porting his jack host app to work with your DAC in order making it compatible with the OpenLase framework as well. LaserShark OpenLase

Yeah 16 seconds is way more time than you should ever need. Measure the time it takes to execute your main loop then add some buffer in case any interupts occur. Just make sure you reset the watchdog at the begining of the loop. Yes, It would be better to use an external watchdog chip. For one...

Like a watchdog timer. You could add a watchdog timer chip and tied it's reset to both the micro and the DAC. However that being a hardware change maybe it would be best suited for version 2. The atmel does have an internal watchdog that can be used to reset the micro but I don't know if that...

Your looking for ILDA files? Or some software that can database IlDA files/frames? If your looking for ILDA files I'm posted some on bitbucket. Bitbucket is a source code repository (keeps a history of file changes so you can later undo bad changes). You can download the files by clicking the...

I can't believe I haven't seen this one before. Thanks Hak

Is that just aluminium foil as the last mirror? Can't believe I never thought to do that. +1 to you sir

+1 for the generous offer from magus. If your image is in a vector format already there's a python script that comes with OpenLase that does a good job of converting SVG files to Ilda. One of our forum members converted it to a web app. SVG to Ilda

I'll take one. PM incoming

Just realized I never answered your question. The model just has the holes so you would need to (may need to drill them larger first) tap them for the threads your using. Harbor Freight has a cheap tap and die set

I bought the Prusa i3v 8" from Makerfarm. It was $650 when I got it now it's $540 Makerfarm Prusa i3v 8"

Open-Source 3D-Printable Optics Equipment Including Filter Wheel changer, Lab Jack, filter holders, chopper wheels and more. Some of these could be very useful in a projector (like the filter wheel) others could be used in a lab setup.