![]() You can also buy pretty similar units on aliexpress for $600 that are intended for laser markers/engravers. Something that’s good enough for a light show might well not be good enough for a 3D printer. And your chances of getting any information about modifying that interface out of the manufacturer are pretty minimal, methinks.ģ. Not so good for interfacing to a Raspberry Pi. The interface on them is some arcane lighting industry thing. $50 and I’d have ordered one last week.Ģ. $100 (by the time it’s shipped to where I live) is just a little to much to risk on the chance that I’ll get something working. I’ve been looking at these, with SLA-printer-lust consuming my soul. Posted in Laser Hacks Tagged adafruit, arduino, Arduino Uno, hard drive mirrors, hdd mirrors, laser, laser projector, projector, stepper motor Post navigation And how about one with no mirrors at all, instead attaching the laser directly to servo motors, though that one does take longer to draw. Another method is to use a spinning wheel with mirrors set to different angles, like this one that draws a marquee using a pill box as the wheel. The video’s in three parts: looking at the laser beams in action as you’d see them on a dance floor, then watching the projected images while looking at an insert of the Windows application, and then watching the steppers and mirror doing their rapid movements.Īs for the expensive galvanometer scanners we mentioned above, check out this impressive laser projector that uses them. Or maybe it’s due to twist in the connection between motor shaft and mirror? Check out the video after the break and let us know what you think. There is a sort of curving of the lines wherever the image consists of two lines forming an angle, as if the steppers are having trouble with momentum, but that’s probably to be expected given that they’re steppers controlling relatively large mirrors. From its interface you can select from around sixteen predefined shapes, including a what looks like a cat head, a heart, a person and various geometric objects and line configurations. ![]() He’s even written a Windows application (in C#) for remotely controlling the projector through bluetooth. The servos tilt the mirrors at high speed, fast enough to make the resulting projection on the wall appear almost a solid shape, depending on the image. The mirrors are rectangles cut from a hard disk platter, which if you’ve ever seen one, is very reflective. But the part that makes this really a fun machine to watch at work are the two stepper motors and two mirrors that reflect the laser in the X and Y directions. The green laser is turned on and off by the Arduino through a transistor. So instead he came up with his own solution that is to be admired for its simplicity and its adaptation of what he could find.Īt its heart is an Arduino Uno and an Adafruit Motor Shield v2. Wanted to make a laser projector but all he could find online were one’s using expensive galvanometer scanners.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |