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PrintRbot Laser Mount

by kenwshmt, published

PrintRbot Laser Mount by kenwshmt Sep 9, 2012
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It fits the typical Greg's, not necessarily on a printRbot.

It quickly snaps onto and off of eddiema's printrbot fan mount.
It isn't a permanent attachment.

This is intended for what is usually a heat resister case with 2 screw mounts off the side of each end. I have a model in the list here. The laser model is slightly larger than the laser housing, 99% scale should make it the same.

The fan vibration shakes the focus lens to the point of falling out with this design. I made a snap on end cap to contain the lens. This model focuses about an inch and a half that way, which keeps the whole assembly out of the smoke and gives good clearance for the fan.

Using the fan, and its Gcode for power control through optocoupler and TTL to the laser controller, this can be used for photo sintering or signing plastic prints.

The engraver attachment is here http://www.thingiverse.com/thing:30520

You will want the Z end stop extender. http://www.thingiverse.com/thing:30590

I haven’t made the control interface yet, so all I have is on with power.

I'm working on it.
Its paused on the production end for a few weeks, as I design the printed circuit board for the TTL controller.

If you use 'lift' you can move the laser out of focus range and back in, I use 20CM. It gives the laser time to heat the next point enough to being sintering before the moveing begins. 1mmps at the fastest, 2 pass if possible.

The mark is .1 mm wide at 1 mm/ps on wood. 2 passes makes .2, and look better.

PrintRbot laser mount thingiverse.com/thing:30064

PrintRbot engraver mount thingiverse.com/thing:30520

PrintRbot marker mount thingiverse.com/thing:30999

PrintRbot Z end stop extender. http://www.thingiverse.com/thing:30590

My musings and tinkerings with this thing.

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I found that the mount (stl) file can't slice with slic3r, some part on the top is missing, could u kindly fix it or let me know you print it? thx a lot.

I have NO invesment in these folks, and the mail lost the first one they sent me, but they are continuously for sale on ebay. You might look for a higer power module, but these are adequate.


the message change broke the link.

This is my 'blog' concerning designing this, a message thread on the PrintRbot forum. http://www.printrbottalk.com/forum/viewtopic.php?f=21&t=162http://www.printrbottalk.com/f...

looks like it's gone? Can you post a more recent link to informations? Do you probably have a video of a laser cut job on your printrbot?

from the ebay page:

Industrial 808nm 800mw Infrared Focusable Laser Diode Module Cutter w/TTL

Peak Wavelength : 808 nm
Color : Infrared
Visibility : INVISIBLE (it does have a deep faint red)
Diode Beam divergence : 12/100 deg.
Emitting area : 50 x 2 µm
Module Output Power : 800 mW
Diode Output Power : 1000 mW
Modulation : TTL (off is TTL HI, so its on unless you trigger it off)
Max. Modul
ation Frequency : 20 KHz
Focus Range : 1 inch to 5 inches
Warm Up Time :
lt; 1 Minute

Power Stability : %5, 20 minutes

Spectral Line width :
lt;10 nm

Operating Current : 1300 mA

Operating Voltage : 9-12 Vdc

Laser Diode Cooling Mode : Aluminum Heat Sink

Driver Cooling Mode : Aluminum Heat Sink

Expected Lifetime : 5000 hours

Power Supply Required : 9-12 volts DC 1.3 Amp

Applications : CNC Cutting, Material Processing,

Could you post more information on the laser?