Search results

Oh, oh, I know a thread about just this! http://laserpointerforums.com/f44/how-laser-energy-loss-over-distance-90614.html Oh, right.

For reference this is the pinout I gave: Not sure where I got this from or if it's for this PSU, but pretty sure it is.

Does it really need to be THAT random? After all you've only got 7 colour choices, which is going to be far more limiting than the actual randomness. Here's how I'd do it: In the main loop, use say, the first button press to store a value from millis(), and use that as a seed for the RNG. Run...

Those friggin plants spread like mad in the grass - and they're prickly when you stand on them too. They can take over your entire yard in the space of a year. Dodging them bare foot becomes a bit of an art :p

I'd consider using another EEPROM value as the seed - basically just set the EEPROM value to something random in the main loop, possibly seeded by millis(), then use the EEPROM value as a seed on the next startup (and subsequently re-set it to something else in the loop). You don't even have to...

It's just a 2 dimensional array, really useful when you have a whole bunch of different pins you want to toggle :) Just realized though that since the array is 0 indexed, you'd probably have to add a "spacer" array before the first one since ColorChoice is always >0. Or just subtract one. Have...

AFAIK the stock library always re-writes it anyway. Got it down to 1.3kb here, don't think you could really go any less except shaving off some variables and hard-coding them: // RHD's TTL Color Selector // Programming by Matt "Sigurthr" Giordano 08/13/2014 // www.SigurthrEnterprises.com //...

You could cut the program size if you change all the unnecessary integers to bytes. The EEPROM can only have single bytes written to it at a time - you are writing an integer, which is fine, but once it's value goes over 255 it'll simply max out at that, it doesn't automatically spread to the...

Depends on so many other factors like dust or fog in the air, it's basically a "how long is a piece of string" question.

Don't drink that nastyass stuff to begin with :p

Re: Is there a "safe" output range for glasses-free operation at this wavelength? I'm sure someone here could build one, it's not really any different to a higher powered laser in terms of construction.

Re: Is there a "safe" output range for glasses-free operation at this wavelength? Anything under 5mW is sufficiently safe, even for a direct hit without goggles, though as ARG said the blue end of the spectrum isn't nearly as visible as green. That said a blue laser dot should still be easily...

M$ would have been sent to the moon and back about laser regulations on their products. You're at a greater risk of eye damage walking outside. From memory the actual diode is 60mW or so.

So I've had my laser cutter for a while, but haven't really done much with it. I've had a few people ask me if I can do a few jobs for them previously, and being a broke uni student with nothing else to do (or source of income), I thought I'd just put this out there :) I can accept a variety of...

Re: what do you think of my (future) website? ^-^ I'd probably make the content panel fill a bit more of the page, lots of wasted space to the right of it even on my oldass 1280x1024 screen, but looks good apart from that.

I have a friend that got a high voltage adjustable PSU for this purpose, was fairly cheap too IIRC and it even had digital control, if you wanted to use it on a CNC-type setup. I'll see if I can find it.

Do you have one you could try at the least? Just eliminate the USB-parallel adapter as the issue if anything.

I've heard of USB to parallel port adapters not usually working with lasers. They don't usually provide all the signals required.

You might be able to rip the chuck off a broken cordless drill and re-use that, wouldn't be too difficult to attach it to a motor shaft.

Motor collet perhaps? Like dremel accessories?