Laser SLA 3D printer with galvo

Get high-resolution 3D printing by building your own.

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A laser SLA 3D printer designed to give great print results without breaking the bank. It can go toe to toe with many commercial printers with a laser spot size is 70 micron and build volume of 13 x 13 x 18cm. It accepts Gcode as input and you can play with all the laser settings you want to get the perfect print.


Create a 3D printer for teaching users about the basics of laser SLA printing while encouraging users to experiment with new resins, and slicing algorithm. This printer would be an affordable way for makers to print wax resin and utilize investment casting for their projects.


Build a laser 3D SLA printer that prints via standard gcode. Have full access to laser setting so I can experiment with different resins. Standard gcode allows user to examine toolpath. This also allows for high resin compatibility which is important for wax resin as those are some of the most difficult and expensive resin to print.


Laser: 405nm 150mw UV laser with a spot size of 70 micron
Build Volume: 13 x 13 x 18cm
Printer Size (Built): 25 x 25 x 63cm
Processor: ST 32bit ARM processor
Print file format: Accepts Gcode
Software: Tested Cura 2.3.1 + Autodesk Print Studio


Laser Galvo setup

More details to be added soon

Field Test:

Build test at Maker Place in San Diego:

23b Space in Fullerton, CA

More detail yet to come.

  • Project page started

    Mark Peng02/22/2017 at 12:53 0 comments

    Hi makers and hackers,

    The project page just got started few days ago, but the printer has been worked on for much longer than that.

    This printer was a hobby project built over a year of time with another friend. We have two working units now, and I brought one of them to Maker Place and 23B in Southern California last week to show. (pics in project detail) I will keep you updated as this project progresses.

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DrStein99 wrote 01/27/2019 at 22:57 point

I am guessing they probably had the same problem controlling precision and consistency as me.  There is little or no real documents on Galvo drivers, if there is - you have to buy the ones for thousands of dollars, and probably spend maybe a year studying the circuitry to get it down.

The common economy Galvo boards do the trick for a fun little light show, but are time consuming and involved when it comes to dialing in the motors and boards, aligning everything to a laser precision.

  Are you sure? yes | no

Black wrote 04/25/2018 at 13:26 point

Is the project still alive? How did you get managed a laser spot size of 70 micron? The ones I found to buy are somewhat around 0.5 mm

  Are you sure? yes | no

Jata wrote 09/18/2018 at 18:07 point

This is the Peopoly Moai. You can order it from Matterhackers. The distance from the vat to the laser galvo is crucial to focusing the laser spot down to the 70 micron size. 

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Matthew Rowberry wrote 06/15/2017 at 04:52 point

Will you continue posting for this?

  Are you sure? yes | no

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