Laser Lifter - Ortur Laser Master 2 (20W) - 3D Printed

After having the "Ortur Laser Master 2" for half a year now, it always bothered me that I had to raise the complete rack if the laser object was higher than 30-40 mm. Therefore, I looked around for a practical solution to quickly and easily make a height adjustment. Then I came across one or the other height adjustment, but they didn't seem optimal to me. So I started to design something myself and make optimizations.

First of all, thanks for the postings on Thingiverse of PLAY3Rone977, as well as the remixes by Crabe31350 and Spectra3D! This is a remix from all of them!

After looking at these models, I saw that they need quite a lot of space (y-axis). A relocation of the micro switch by about 15mm, is hardly possible without extending the two cables. I started the construction of my device with the aim to get a device that is as space-saving as possible, concerning the area of the y-axis and last but not least also the x-axis.

This laser lifter is only 4.2 mm thicker than the original laser mount. So the micro switch on the left side of the y-axis has to be moved backwards only accordingly! You have to test this. I recommend by about 5-7mm.

As for the rotating mechanism (crank or knob), different sizes of ball bearings were used in the existing models, among others. In principle, this makes sense! But since I prefer the crank variant and I had no idea for a practical and also visually appropriate implementation for a combination of a crank with a ball bearing, I decided to use a sleeve nut. This also works great!

Starting from 30mm distance from the edge of the heat sink to the surface of the base plate, the height can be adjusted upwards by approx. 80 mm. A locking knob is integrated into the width of the lifter, so there is no restriction in terms of space on the x-axis!

Besides, it is not to be neglected that this model - in comparison to the others - needs less printing time and therefore less material. In addition, no supports are needed during printing.

Required stl files:

• LaserLifter_guiderail_left.stl
• LaserLifter_guiderail_right.stl
• LaserLifter_lasercarrier.stl
• LaserLifter_liftertop.stlLaser
• LaserLifter_lockingknob.stl

Print instructions:

• Printer brand: Prusa
• Printer: Prusa Mini
• Supports: No
• Resolution: 20
• Infill: 20%
• Filament brand: Prusament
• Filament color: Galaxy Black
• Filament material: PLA

After you have printed all parts ...

Remark: As all parts are designed to fit very precisely, it may happen that you have to rework one or the other part a bit with sandpaper and/or cutter due to different dimensional accuracy of the printers and the different behavior of the filaments.

• 1x sleeve nut M6 (head Ø 19mm, hexagon socket SW 5, shaft Ø 9mm, shaft length 9mm)
• 1x Allen key SW 5 (optimal as crank)
• 1x threaded rod M6x120mm
• 2x nut M6
• 1x Phillips screw M4x25mm
• 2x nut M4
• 2x Self-tapping machine screws 2,5x12mm
• 1x cable tie

Tools:

• Phillips screwdriver
• wrench 8mm
• string cutter

Here you can see all the parts needed to assemble the Laser Lifter.

To assemble the guide rails you need "LaserLifter_guiderail_left.stl", "LaserLifter_guiderail_right.stl" and "LaserLifter_liftertop.stl" ... and 2x Self-tapping machine screws 2,5x12mm.

To assemble the locking knob you need:

• "LaserLifter_lockingknob.stl"
• 1x Phillips screw M4x25mm
• 1x nut M4

For the next step you need

• 1x sleeve nut M6 (head Ø 19mm, hexagon socket SW 5, shaft Ø 9mm, shaft length 9mm)
• 1x threaded rod M6x120mm
• 1x nut M6

Not everyone has a sleeve nut in his screw assortment. Sleeve nuts are excellent for bridging longer distances by using a threaded rod. They are mainly used in furniture making. I still had a few of them. They are ideal for this project!

If you only get a sleeve nut with a longer shaft, it should be no problem to shorten it to a shaft length of 9mm.

First screw a M6 nut from "the top" onto the sawed-off 120mm threaded rod (otherwise you'll have to screw the screw up from below later, which will take quite a lot time).

Now insert the threaded rod from below into "LaserLifter_liftertop.stl". Then screw the sleeve nut from the top onto the threaded rod using an Allen key SW 5 (optimal as crank). After tightening, the threaded rod should not be loose but still be able to be turned!

Installation of the nuts, which serve as adjustment or locking thread. For this you need:

• 1x nut M6
• 1x nut M4

To remove the laser element from your Laser Master you need

• 8mm wrench

When the 4 cap nuts are removed, you can take off the laser element. Before you do this, you should disconnect the small connector from the board.

Unscrew the two screws that hold the mounting plate.

Now screw the two small screws a few turns directly into the two upper holes of the laser back side.

Insert the "LaserLifter_lasercarrier.stl" between the two guide rails. Use an Allen key to screw the threaded rod into the nut - which is located in the center of the laser carrier plate.

Then take the completed new guide element, insert it into the two screws - as shown in the picture - and tighten the two screws firmly. Make sure that the locking knob is not screwed in too far.

Place the complete component back onto the 4 threads and then screw it on tightly with all 4 cap nuts.

Put the small plug back on the board.

Take a small cable tie and pull it through the guide on the left guide rail to secure the small cable leading to the board. Do not tighten the cable tie too much! Ensure that the laser lifter can move up and down freely.

Take an Allen key SW 5 (optimal as crank) and try to move the laser up and down.

Whenever you have adjusted the distance to the laser object correctly, remember to tighten the locking screw and loosen it before readjusting.

Starting from 30mm distance from the edge of the heat sink to the surface of the base plate, the height can be adjusted upwards by approx. 80 mm!

As this laser lifter is (only) 4.2 mm thicker than the original laser mount, the micro switch on the left side of the y-axis has to be moved backwards accordingly! You have to test this. I recommend by about 5-7mm.

Good luck with the installation of the Laser Lifter and always a correct distance to the laser object!

Here are 2 small tools to help you adjust the height of the laser and an adjustment ring for adjusting the laser focus.

• laser adjustment aid
• distance meter