Word limit, divided into three articles:
Laser projection POV (upper) (2015-10-01)
Laser projection POV (mid) (2015-10-01)
Laser projection POV (bottom) (2015-10-01)
Objective
To participate in the production of community competitions, can not think of any ideas, do a rocker of the laser version of the bar.
Circuit principle
Production steps
- Look at the running effect first
Hello: Hi, I ' m seesea:)
- Make a Stand
Thanks to the kit provided by the Ausone robot.
- The
- laser tube combination
was originally thought to be easy to use, and later found not to be driven by ULN2803, but it was done. In the Breadboard test diagram can see ULN2003 (no 2,803 using seven lamp test) with the pull-up resistor, but the resistance is too large with the fixed resistance is too small hot, had to use transistor to drive. Therefore, the final circuit diagram is modified to the common yin wiring method.
The difficulty lies in the direction of each laser tube alignment, or a little farther away from the point will be very obvious, really should be the idiom: horseshoes, great difference. Adjustment is very tired: the whole with hot melt adhesive, and then light laser tube, using the heat of the glue gun head a laser tube slowly adjust the position, adjust the good one after cooling training and then adjust the next, and the adjustment after a time will affect the previous one, so particularly difficult. No way, the most primitive wood for the art of "cutting paper knife" ah ... Will 3D, students with 3D printing should be better precision.
Adjustment process to stare at the laser point, very hurt the eye, remind everyone to watch the eye!
After several nights of adjustment finally smoothed out, the laser tube may be heated with damage, some brightness drop a lot, the last can see the middle of a few brightness obviously dark, but did not replace the desire of laser tube, this is really hard job.
Paper Cutter plywood:
It's good to cut into this:
try size:
co-yin Welding:
Weld good:
- Installing the laser tube combination
- Making Mirrors
Plastic film Reflective film does not work well, too soft will be deformed, reflective laser after the non-parallel, if there is a real mirror of the bar is good. Looking for a half day found some Raspberry Pi bad shell of acrylic quite flat, savior ah.
Supermarket to send the cottage fan, waste use it.
To be cut well:
Reflective film, Six pieces of mail:
Do:
Or the hard point, there are bad Raspberry Pi acrylic shell:
No tools, with arm:
(Word limit, continuation of the following chapter)
Laser projection POV (upper) (2015-10-01)
