A DIY UV post-cure Lightbox you too can make


#1

DIY Lightbox

Specification for an SLA print post-processing UV lightbox

Objective:

Create a simple, inexpensive, yet stylish and effective post-print UV curing lightbox to augment the Formlabs Form1+ 3D printer. Also, design and size this box such that the Form1+ actually sits on top of it, minimizing consumed footprint on my
workbench. Also, incorporate leveling feet which the Form1+ unfortunately lacks.

Specs:
Size - 27.5cm wide, 20.5cm tall, and 29.5cm deep
Mat’l - 1/2" MDF box, radiused to approximate Form1+
3/16" acrylic mid, back, and control panels

Features:
adjutable height felt feet
front access door
adjustable safety switch keeps lights off when door open
lighted rocker main power switch
12v motor rotates UV see-thru part platform
12v PWM motor speed controller
(2) 5m self stick UV LED strips (300 LEDs each)
internal 12v power supply
powersupply ‘on’ indicator light

Parts:

Junk pile:
12v power supply: free
Using a 12v/5a power brick I had kicking around.

Printed parts:
motor mount (motor-mount.stl)
door aligner (door-align.stl)
motor shaft to platter interface

Ebay:
If you need a 12v power supply: ~$20.00
http://www.ebay.com/itm/12V-2A-3A-5A-6A-8A-10A-Power-Supply-Adapter-Transformer-For-3528-5050-LED-Strip-/201134927007?pt=US_Lighting_Parts_and_Accessories&var=&hash=item2ed4936c9f

gearmotor: ~$12.00
http://www.ebay.com/itm/DC-12V-0-06A-2RPM-Speed-Reducer-High-Torque-Worm-Geared-Box-Micro-Motor-/321536360296

motor controller: ~$5.00
http://www.ebay.com/itm/GT-Hi-Q-Pulse-Width-PWM-DC-Motor-Speed-Regulator-Controller-Switch-6V-90V-15A-US/111428255594?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D25411%26meid%3D150ef55b9b884951a893f6d5251185d6%26pid%3D100005%26prg%3D10672%26rk%3D3%26rkt%3D6%26sd%3D261313026796&rt=nc

(2) UV LED Strips: ~$14.00ea (~$28.00 total)
5M Ultraviolet UV 395-405nm 3528 SMD 300LED Flexible Strip 12V
http://www.ebay.com/itm/161349617292

Home Depot:
1/2"x24"x48" MDF: ~$10.00

Self-stick EPDM weather stripping to seal the door: ~$5.50
http://www.homedepot.com/p/Frost-King-E-O-5-16-in-x-1-4-in-x-17-ft-White-EPDM-Rubber-Weatherstrip-Tape-V25WA/100017014

Piano hinge: ~$6.00
http://www.homedepot.com/p/1-1-16-in-x-12-in-Bright-Nickel-Continuous-Hinge-14649/203339971

Door handle: ~$4.00 (never added this, and kinda like look of no handle)
http://www.homedepot.com/p/Liberty-3-in-Satin-Nickel-Arched-Pull-P22667C-SN-C/202587563

Magnetic door latch: ~$1.00 (if I did this again, I would use a push-to-release type, like on a stereo cabinet)
http://www.homedepot.com/p/Amerock-Magnetic-Catch-BP9793W/202176372

Adjustable felt feet: ~$4.00
http://www.homedepot.com/p/Everbilt-Beige-Round-Felt-Threaded-1-in-Stem-Glides-4-Pack-49908/203661113

Radio Shack:
Microswitch to cut power when door opens: ~$3.50
http://www.radioshack.com/product/index.jsp?productId=2049718

Master switch to control power supply: ~$5.00
(Radio Shack) http://www.radioshack.com/product/index.jsp?productId=2103602

Everything Plastic: (local plastics mfg that sells scrap by the pound):
http://www.everythingplastic.net/
3’x1/8" acrylic rod: ~$0.40
light pipe from ps to front panel

3/16" acrylic sheet stock: ~$7.50
small scrap pieces for the mid, back, control panel and platter.

Originally I bought a 2rpm gearmotor, but when it arrived, it actually went 36rpm! I complained, the seller said there was a mixup, and there were no more 2rpm motors. He gave me the motor, and refunded the card. That’s why I added in the PWM motor controller.

Pictures of the build follow.










The printed parts in .stl format

microswitch-block2-microswitch-block.stl (48.8 KB)
microswitch-block2-part-door-alignment-ramp.stl (23.6 KB)
microswitch-block2-part-platter-hub.stl (344.1 KB)
the Forum software won’t allow the motor mount stl (it’s the print in the lightbox) as it’s too big :frowning:
send me your email and I’ll send it along if you want it.

Happy Hacking!


Recommended UV Chamber for Post-Curing
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#2

amazing work!


#3

Thanks! I’d love to see others make one, and improve on it!


#4

Awesome work Christopher !!!

Thanks so much for documenting and sharing you design… love it :smiley:


#5

Nicely designed bit of kit.

I picked up a UV sterilisation drawer for £25 off ebay. Granted it doesn’t look as nice but does the job :smile:


#6

This looks amazing! Can’t wait for some downtime to build me one of these. I checked out all the links, the motor is no longer available from the ebay seller. Everything else still works. Thanks for sharing!


#7

Cool! I’d love to see what you come up with :smile:

Cheers,
-C


#8

Great job! I just finished making one too! I wanted it to match the Formlabs printer as much as possible. I 3D printed all of the parts in a Dimension 1200es. Maybe I went a little overboard by even laser engraving the company logo on it, but that is just the perfectionist Industrial Designer in me. It works just as well as it looks along-side the Formlabs printer! Let me know what you think! I have all of the SLDPRT files if anyone is interested!


#9

I forgot to post these images of it on.


#10

WOW!!! WOW!! again :smile:
That is fantastic! Absolutely beautiful job. Very impressive.

-C


#11

Jonathon, This is awesome, and I would live the files, to make one for myself. Or could I pay you to print the printable parts for me? I think I have bought most of the internal parts trying to make one out of an old rotisserie oven, and some heating duct parts. But my stuff sits out where people can see when they come to pick up stuff and it is hard to charge for stuff when it looks they way mine does.

facetstm at msn dot com

Toddmichael


#12

Hi,

Very great, can you send me the files ? Patrick dot nowak at Nowatech dot ch

Thank a lot

Patrick


#13

Hey Jonathan this is the best I’ve seen available brilliant work! Can you send me the files pls.


#14

I made a drop box folder and added you guys, let me know if it works!


#15

I made a dropbox folder and added you, let me know if it works!


#16

I Dont have your email to add to the drop box folder


#17

Hey Jon its here, thanks so much! This is my drop box email [email protected]


#18

I don’t see anything yet.


#19

The files can be found:


#20

Hi Christopher.

I like your design and I’d like to build one myself. Can you send me the motor mount .stl?
jasonvanderreyden at gmail dot com

Also, do you have a cutlist with dimensions for each piece, or maybe a more detailed set of instructions to follow? I’d like to hold to your design as close as possible while only changing the width to match the Form 2.

Thanks!

Jason VanderReyden