Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!


by servone001, published

LEGO LIGHT SWITCH COVER by servone001 Dec 14, 2015
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36985Views 9195Downloads Found in Household Supplies


Replace your boring household light switch covers with something a little more interesting. Connect your favorite Lego pieces or Mini Figs to create a wall mounted Lego landscape around your switch! Fits most standard code light switch assemblies. You can use existing screws.

this thing was designed, realized and printed in the phenomenal Engineering dept. of New River Community College, under the guidance and encouragement of Jeff Levy. For more info about the NRC Engineering Design Technology program, click here:

Print Settings

Printer Brand:








Medium to High


The tolerances on this are not great. I'm no engineer... just a beginner. Legos will stick to it, but may be loose in some places. Your best bet is to attach a flat lego piece (2X4 works well) first, then connect additional pieces to that. Good luck!

*** Gang... It was indeed saved/uploaded in inches. If it makes your set up any easier, the final specs are:

3.0 X 4.79 INCHES.

I think on some occasions I had to re-size it the slicing software before printing. Sorry about the confusion.

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I can't get anything to print once I slice the STL...

I love this thing a lot http://www.thingiverse.com/thing:649284. But this seems like a simpler alternative.

Frankenstein Light Switch Plate
by LoboCNC

Thank you, overall good model.

Lulzbot mini (.5 default hot end)
Cheap "excelvan" PLA from eBay. Printed at 220 deg. and 70 deg bed.
Sliced with Cura - I manually dragged scale to 76.2mm.

Surprised to have 1 corner lift a little bit from the bed. I'm thinking it has to do with cheap PLA (and I haven't narrowed down print temp).
Used Cura supports and BLOWN AWAY by how nice and clean they snapped out. Just twisted a little bit and pried through switch hole and the entire thing came off cleanly.
I needed to sand down back of screw holes to avoid gap on wall.

Disappointed that pegs were a little too large. I could get a lego to stick, but very tight and kind of deformed the bottom of the Legos. Anyone else have this issue? How did you solve?

Great design! How well do the Lego dimples/bumps hold up over time with a lot of use? Is the snap very distinguishable from regular legos? Have you found any printer materials to be better than others for printing legos?

Warning when using Cura:

  1. This thing needs supports, so you gotta add it.
  2. However, the model doesn't lay flat on the bed. So if you add supports, it creates an initial layer of supports thats a few millimeteres high.

-> So if using Cura, you need to manually move the model lower so that it sits flat on the bed. I'm not sure why this model doesn't lay flat automatically.

Great model, my kids love it! Could you post the model file for the purpose of making custom versions (differently placed screw holes, etc.)? Thanks!

Great switch plate - worked right off the printer. Kids love it. They want about 100 of them now.

Thanks for the model.

Details: Printed in PLA on a Rostock Max v2 with E3D v6 hot end with .4mm nozzle. Support on. I used a raft. For those interested, you will need to scale up 25.4x to convert from inches to millimeter.

When I try to open this file in cura the light switch cover is the size of a dime?

Scale up 25.4x to convert from inches to millimeter.

Thanks, that helped me too!

Great design. Was a 2 light switch panel ever made?

Hey! I thing this was a great idea, i made two of them and put my minecraft legos up on them and my brother and sister put their legos up there. I think you should make 2 and 3 light switch ones so it could be more fascinating for people. Thanks for the effort, I really enjoy it. :)

I need one with 2 and 3 switches.

I made one from servone001 design.

Do you have it on here?

No have a default Brazil ? :(

just printed one and it turned out great! My son loves it and is sticking legos to it as I type this. Now I need a double gain one for the other room. Thanks for the great work

I am trying to print this in ABS and I'm getting major warping. Anyone successful with ABS?

Do you have a heated bed? ABS has to have one or else it will warp like crazy.

What Hippo12 said, plus use a raft.

The magic number for Cura is 25.4 scale.

it would be awesome to integrate this into the customizer and auto generate any size with the lego mounts on it

When I load this in Cura, it's extremely small. What am I doing wrong? Should I just rescale to 72x114mm?

To answer my own question.... yes.

Any plans for 2-3 switch covers?

Yes! Planning on rendering a double face soon. Stay tuned.

Can't wait for the 2 and 3 switch covers!

sizing of holes were off by .10 inches

I'll tighten it up on V2.0. Thanks for feedback.

I have the stupid light switches that have the large rocker switch.

20a, nice. Big circuits :P

I tried this and it failed. It started to print the switch hole in space before it made the top. Is there a setting I am missing to create some kind of support structure? I am new to printing. I use Slic3r and a Kossel Mini.

Hey, sorry for the delayed reply. I am rather new to printing too, so I don't know how much help I can be. I printed most of mine on an XYZ and a Stratasys uPrint. The uPrint prints support material, so I added a raft and support. That makes a big difference. That said, on the XYZ... it just printed with no support or raft and it came out OK. Make sure you have it oriented correctly, or maybe try a different orientation. Maybe try printing it face down??? Sorry I can't be more help. Good Luck!

hi, if i understood correctly, you used the software that came with your printer? And what do you mean when you say on the x,y,z it printed without support. I am new and don't know how to add supports yet, I am only using Cura software so if anyone can help... thanks

Hi there. Being that these points are close together and from retraction I have tons of hairs on this part. Any suggestion how you got it soo nice and clean?

change your retraction settings. or print slower. lots of ways to solve this

It's already printing slow and retraction is set to 2mm

im printing now ill let ya know

It's an 8 hour print.

im at 90%... so far no strings but we will see... what color are you using? some colors are too viscous, so turn down printhead temp down 5degrees i find that will stop it

I used glow in the dark PLA required temp 225-230

required isnt always required if ur getting strings it obvious its too hot my print just finished abs black no strings

Yeah but not every printer is the same! I don't have a high quality one like yours.

Gang... It was indeed saved/uploaded in inches. If it makes your set up any easier, the final specs are:

3.0 X 4.79 INCHES.

I think on some occasions I had to re-size it in the slicing software before printing. Sorry about the confusion.

Scale is really small. Have to blow it up huge.

It was probably uploaded in inches, and most 3d-printer software defaults to mm.

Scale by 25.4x to convert.

To break it down further, if doing by %, uniform scale to 2540% (original is 100%) that would make it, 76.2 mm by 121.666 mm.

need one for aussie switches the square button and bolt patterns

Any luck finding one? Aussie here too and would love these for my kids' room.

Genius - now I need it for other countries sizes and drill holes