Side Release Buckle 3/4 inch

by UniverseOfDesign, published

Side Release Buckle 3/4 inch by UniverseOfDesign Oct 15, 2015

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This is a side-release buckle or parachute buckle that works with 3/4 inch straps or 'webbing'.

I modeled this so I could print a replacement for a broken clip on my pack. Originally printed in PLA, which has been surprisingly functional so far, but I've reprinted in PET+ which has a much better flexible quality to it and should last far longer.

Prints best with support everywhere, especially for the female side of the buckle.

Print Settings


Doesn't Matter




50-150 micron




Is most functional when printed in PET+ or similar, but also works in ABS, PLA, etc.

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the bucket looks very good, but: The wall of the female side is too thin. It broke after about 2 weeks. Please increase the wall thickness. If you have not the time to do this, please upload the CAD file.

Broke on the first use, it is smaller than I thought

Can't remove female buckle, only male buckle (North Face Recon backpack) so I can't use this buckle as a pair. I would like to use the male buckle but I would like to know if any body knows the thickness. My original buckle thickness is about 5.75 mm.

Very nicely done, thanks for the upload. May we have the CAD file as well? My buckle is slightly different from yours. Thanks again!

hello, you have find ?

Hello, you have find the CAD file ? This buckle is perfect, but i want edit for repair my high chair. Thanks

Hi I like your design. Is it possible to get one witch fits an 30 mm strap (I think it is about 1.18110236 inches, according to google :-))

You could try scaling this up %160.

for everyone concerned; I tested it.

Scaling this up to 160% works with a 30mm belt.

I printed the female in upper position with the insert down with no suport on an reprap prusa i3 and it came out like in the store realy beutifull


could you say me , your settings, when you printed this object. I've problems with the bridges.


Hi, can you send me the file in another format like IGES, STEP or XT?

I just made a replacement male one for my Dakine-Backpack. Worked perfectly on my Robox RBX-1 and I didn't even had to do anything after the print, rather than pulling away a tiny little square of support material! Thank you so much for this perfect Design!

You're welcome! :D

wow, looks like a very difficult print! did you use break-away support only?

Yes, mine were printed with breakaway support, 20% with a .15mm z gap and .8mm xy gap. I have not yet tried this print with soluble support material. Without internal support on the female side of the buckle there is too much sagging for proper clearance.

did you really jump with it? i'm still unsure if i can trust 3d printed parts..

Absolutely not. I use this on my cycling backpack, not on a parachute. As far as I know this is the name for this type of buckle also known as side-release buckle.