How to DIY: A Laser Cut Light Fixture.

Saturday, May 3, 2025

 
acmer laser cut light fixture
Today I bring you a whole new world, how to DIY:  A Laser Cut Light Fixture.

Yes.  

With an actual laser cutting and engraving machine!  

Wow.  Yes.

I first must mention, while I was not compensated for this project, I was gifted the Acmer P3 48W Diode Dual Laser Engraver Cutting Machine* in exchange for this post.  Even so, the opinions forthwith are mine.

acmer p3 48w diode dual laser engraver cutting machine
And quite the machine it is!  Holy cow.

Was I intimidated by this?  Yes.  Should I have been?  No.  Everything is surprisingly simple.

I will readily admit, as I've never used such a fancy machine before nor am I super technical, it was a learning curve but I very much like to learn.  That's the whole point of life, right?  But point ultimately being, you don't have to be technical to use this.

Nothing is impossible if you set your mind to it.  Nothing.  Rawr!

And now, yes, this project will be vaguely familiar in a fashion.  This is the exact machine I wished for when I created the super cool foyer light fixture.  It would have saved me tremendous time and been infinitely more accurate.  For sure.

But, now that I have this spiffy Acmer P3 Laser Machine,* the world is my oyster, opening up a vast new playground of DIY projects and crafts.

So what was I to create?  Guess we already know!  Because...cool light fixtures are, well, cool, and are the jewelry of every decor so in my mind, all light fixtures should live their brightest lives.

custom designed laser cut light fixture
Gah.  Omg.
I designed this piece myself, so proud too, but if doing so isn't your forte, no worries as there are oodles of websites that offer pre-designed projects.  I mention this too as I used various software that may be inaccessible.  But again, nothing is impossible.

How did I come up with this design?  In my office, I was staring at the Mid-Century cabin wall papers and resolved hey, bump the whole MCM vibe.

For deeper, more specific inspiration, I foraged the interwebs looking at a slew of laser cut light fixtures plus wood light fixtures in general of the era or thereabouts, then mashed a bunch of inspo into one.

before
....because before.....yawn.
First up, AutoCAD* which, I know, technical as it gets, but my gerbilly brain knows it.  My recommended substitutes here are achievable across the board:  hand draw the idea;  Inkscape which free and terrific; Adobe PhotoShop; Adobe Illustrator; Canva; whatever you feel most comfortable with.

You will need software for this but don't panic, I gotchu.

Based on the Acmer's available cutting surface, which is large at nearly sixteen inches square, I determined my fixture's structure sizing.  Key here:  base your design to fit the machine.  

For my structure, thanks Dad, always thinking of you, I went with fifteen inches long by five inches wide, two pieces, top and bottom.  Drew that up.  These got cut out of 1/4" plywood that I had on hand.

Next was math.  Ugh.  For this fixture to hold together without glue or fasteners, I drew cutout slots for the main body wings to slot into.  Mathing that layout, oy     ....but I got it.  

Too, as I purchased a pendant light kit, I needed an open slot in the center top for that to pass through.  Most any home improvement store or Amazon* will have them.  Mine came from Home Depot* based on its drop and tidy design.

Next, I drew up the wing pieces.  Here I went with twelve inches tall by about four inches wide.  I was basing this on craft plywood panels* but later found a much more affordable 4'x8' sheet of 1/8" plywood* at Home Depot, buying me flexibility.  Menards man, lettin' me down on this project.

For pizzazz, I drew up ovals to adorn the curved ends between the wings.

AutoCAD wrapped, I exported the files to PDF.  You can convert PDF to SVG online easily but those files weren't loading right.  What worked was importing the PDF files into Inkspace and converting them to plain SVG files.

Next was LaserGRBL, the software that feeds the file into the Acmer P3 Laser Machine* to run.  LaserGRBL is free and simple to use.  There's also LightBurn though it's fee-based.  

LaserGRBL and files on computer screen
LaserGRBL on my laptop with the wings and ovals ready to cut.
Ok, now more about this swanky, powerful, mighty Acmer P3 Laser Machine.*

It's substantial, which is terrific, as it gives you a large working area inside the machine.  It's remarkably straightforward to assemble too, just plug and play, easy peasy.  

The friendly Acmer people expressly pointed out that the laser on this machine is safe to use indoors.  I will note here that the machine does put out smoke so either build yourself a well-vented enclosure or do as I did, use it outdoors, as ventilation is supremely important.  

Lots of excellent fire and heat safety features are built right in too.

Added bonus, the friendly Acmer people offer fantastic customer support so if you run into any dilemmas, they're there to help you succeed.

This machine will cut or engrave of course wood but also glass, ceramic, acrylic, leather, kraft paper, MDF, metals...over two hundred types of materials.  ...Right?!  My cool woodworking friend Scott keeps asking me to put cheese in there.  Uh, nope, sorry.

Truly, it's a pretty remarkable piece of machinery.

Right, so I got LaserGRBL loaded up on my lil' ol' laptop, my SVG files imported in, then was ready to go.  

cutting wood with Acmer laser cutting machine
Little layout issue here with my learning curve but got it.
Hot tip (ahhh pun...laser, hot):  test on scrap material first so you don't waste a whole heck ton of project wood as I did getting things aligned properly between the screen and the machine.

With nerves ablaze (omg with the puns all of a sudden), I hit the go button and away she went, quietly cutting away.  Holy excitement!  Also included, protective eyewear too; PPE is always essential.

After test runs, I did have to redraw a bit as my math was, duh, off of course on the ovals.  No harm, no foul, quick to remedy, and I was back running in no time.

Be sure to check the manual for speed settings based on the material you're cutting or engraving; there's a handy card that lists everything out for you.

cutting light fixture parts with Acmer laser machine
Honestly, I just could not get over how nifty this machine and process was.  Pop a piece of wood in, hit go, and before you know it, literally only a few minutes, your project pieces are in your hot (pun again) little hands.

laser cut light fixture parts
All that was left was to stain, seal, stitch, assemble, and install.

Stitch?  Yes.  I did some hand stitching.  Keep reading....

For the stain, I went with Gunstock,* matching the master bath vanity even though they're a floor apart.  If you go with wood like the Home Depot sheet plywood, do yourself a favor and use wood conditioner* first before staining.  Worth it, trust me.
 
staining laser cut light fixture parts
Clockwise starting at top left:  stain tests; wood conditioner on the parts; staining; sealing.
Once everything was stained, I gave a quick light seal with a can of Krylon matte finish spray.*  Outdoors.  That stuff is stinky.

Those little ovals I keep mentioning?  I wanted to see what this swanky laser machine could do, test its precision, so I designed them with tiny tiny holes spaced around to stitch in embroidery floss.*  Bam, the Acmer handled those holes with exceptional accuracy.

stitching embroidery floss
Turned out cooler than I envisioned which is always exhilarating.  To secure the floss ends, a few itty dabs of super glue* did the trick.  Just watch your fingers and your sleeves, ahem....

finished laser cut light fixture parts
Anywhoo, let's assemble this bad boy!

Literally all I had to do was slot the wings into the structure pieces.  Slip in, squish gently to secure snugly.  I left a few wings off for installation and light bulb insertion.

assembling main body of laser cut light fixture
As I hadn't designed a glue-free way to connect these fab ovals, I just used plain ol' super glue.  Worked like a charm, dried in seconds.

gluing ovals in laser cut light fixture
Off to install, I couldn't believe it!  

Ultimately, it's really not that hard to change out a light fixture but if you've not done it before, it's best to hire a pro.**  

pendant light kit installed
Once the kit was attached, I slid the socket part through the top of the fixture and secured it with the pendant kit piece that screws onto the socket housing.  Ah see, shop your pendant kits wisely.

Tightened in my spiffy new light bulb,* slid on the remaining wings, powered the room back up at the breaker box and dashing up the stair fuelled by unadulterated butt wiggle giddiness, I flew back into the room and flipped on the light.

finished laser cut light fixture installed
Wow.
 
laser cut light fixture shadows
The way the wings throw shadows around?!  Omg.  

laser cut light fixture off
Gotta get rid of that cart....hm.
Yes, the fixture is large for the room.  Yes, I'm very happy about that.  Yes.  Yes.  Yes yes yes.

other view of laser cut light fixture

Thank you Acmer, you made my dreams come true.

laser cut light fixture completed

Need this machine right now?  Yes, you do.  You can shop Acmer's website here* or you can shop on Amazon here.*  If you shop the latter, use this code for 30% off your order:  30CBE8I1.  You're welcome!

laser cut light fixture from below




*The AutoCAD link is an AutoDesk affiliate link.  The Home Depot pendant and 1/8" plywood are Home Depot affiliate links.  The pendant light kits, craft plywood panels, Acmer Laser Machines, super glue, and long Edison light bulbs are Amazon affiliate links.  Acmer links are also affiliate links for their specific website.  The embroidery floss and Krylon Matte Finish Spray are Michaels affiliate links.  The Gunstock stain and wood conditioners are Lowes affiliate links.  Mwah, thanks!  Please see the "boring stuff" tab for more info.

**Disclaimer:  Electricity is dangerous.  It can hurt you.  It can kill you.  Bad wiring can burn your house down.  It's best to hire a qualified, licensed electrician if you don't know how to wire things.  Do not attempt to wire anything without the proper knowledge.  Do not ever take wiring advice from me.  And do not blow your house up. 

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