Finger Splint / Finger Protector

by carbonbased, published

Finger Splint / Finger Protector by carbonbased Jan 15, 2013
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5860Views 1281Downloads Found in Household Supplies


I very sensibly tried to cut my fingertip off with a pair of tin snips the other day. I damn near did it too, with just about 20% left attached. Since I was also sensible enough not to seek medical attention nor get any stitches, I designed and printed this finger splint to prevent any further trauma while things are healing.

It is sized for my middle finger, and I do have little girly-man hands, so you may have to scale things up or down to suit your needs. I actually hope that no one needs this thing, but I'll be glad if it does help someone who does.


Print it solid with no support. Slide on finger. Tape in place. Seek medical attention if anything turns purple, green, or oozes.

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Hey, thanks for this! I sliced my finger while, guess what, trying to remove a 3D print with a razor knife. Bandaged is okay, but bumping it hurts so I thought I'd get a finger protector at Walmart. No luck, so I looked on TIV and you already made it!

First print was a little too small so I upscaled to 110% and "perfect". Not too loose, not too tight. Boo Boo is before the knuckle. Your print goes just beyond which works out great.

I printed with PLA on a Prusa MK2 1.75mm printer using their recommended settings. If one was to have to use for heavy duty, would recommend using Talman Bridge Nylon for strength. Now knowing that my finger is a "target" for 3D print removal, I think I'll wear the protector even after my finger heals. Thanks again for sharing. You've saved us time.


Excellent! I appreciate the thanks. I'm a fan of the Bridge Nylon as well (apart from the drying requirements of nylon). Speaking of which, if you print mechanical parts then you might want to try NylonX from Matterhackers.com. It is nylon that has been filled with carbon fiber. Obviously, this is not continuous strands of carbon fiber so it is not ideal, but the the tiny little fibers do (surprisingly) add rigidity to the nylon parts and also makes them lighter. I'm into radio control airplanes and quadcopters, so it's awesome for me. I'm a big fan. I'd be a bigger fan if it were cheaper, though.

Anyway, enough prattling on. I'm glad to hear this thing was useful and I hope the boo boo heals fast.

I just want to say that this finger splint design is the BEST! I broke my finger 6 weeks ago (the tip bone was shattered into four pieces) The splint the hospital gave me was large and cumbersome and I banged it on lots of things making my finger really hurt. The technology teacher printed this off and I've been wearing this for four weeks (I'm about to show the doctors at the hospital tomorrow). Instantly my finger hurt less and I was able to wash my hair with two hands!! It really did give me my life back. Am wondering if we can now develop a second model. This wonderful splint needs air holes in the tip to allow the finger to breathe. The downside to this design is that the finger sweats and as a result the skin will peel. What do you say?????

Thank you so much for the kind words. I'm glad that it helped you out. I've had to use it twice now, and I personally think its best feature is that it can be printed in 1-2 minutes.

The two side slits are there to provide some ventilation, but I admit that they can prove inadequate, especially at the finger tip (as you have pointed out - pardon the pun).

I am unfortunately working overtime these days at work, and my little design time is currently being used to develop a prototype for someone, but I will try to make some time for a V2 of this with air holes. In the mean time I would suggest spending a few minutes with a drill and a 1/16" or 1/8" drill bit. Just remember to take the the splint off first :)

Hope you heal quickly!

Thanks! I've had a wee play using TinkerCad and have managed to put some holes in it. I'm experimenting with two or three holes, three seems to break too easily. Can I send you the files so you could add them here? or alternatively I can upload them here and you grab them off my page, and once I see you have them I'll take the files down again. Don't work too hard!
Kind Regards R

Sorry for the looong delay in getting back to you. You can just click "Remix It" at the top-right of the page and upload the files as a remix.

Great thank you !

Scaled it down to 85% for my little finger, but I break it after fews hours, the shell isn't thick enough at this scale.

Very comfortable!

Glad it (sort of) worked for you. You can try putting a layer of tape around it to give it some more strength.

Great thing! I think I will print one as I just made one of http://www.thingiverse.com/thing:72022http://www.thingiverse.com/thi... ;-)

3D Printer Battle Wounds
by DanLuc

UPDATE - My finger is all healed, and this thing helped tremendously in preventing additional trauma to my finger tip.

Seek medical help also if it smells bad. Otherwise, a nice idea. Someone could manufacture splints for any severe cut or bone fracture.