Improved open hinge for QIDI printer

by whited3, published

Improved open hinge for QIDI printer by whited3 Jul 31, 2016


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Autodesk Fusion 360

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1339Views 311Downloads Found in 3D Printer Accessories


I really like the open hinge concept and I took it a couple steps further.
Here are two added features:

1 - Keeps the door open; when the door if fully open, slide to the right to lock the door into the open position
2 - Hinge only separates @ 30 degrees from vertical. The hinge will not let go of the door unless the door is almost all the way open. This means through most of the motion of opening, the door will stay where it is. Also the door will not come off while in the fully opened and locked position. Makes one-handed opening much easier because the door doesn't accidentally separate.

Note: The best orientation to print, for me, is as shown in the 3rd photo of the orange models.


Print Settings










I printed in PETG with 100 % infill. I'm sure you can get away with less infill. I also used supports but it seems they were not necessarily needed.

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Brilliant solution, man! I've got my printer calibrated, and everything fits flawlessly. I really appreciate FINALLY having a clean solution to this problem.

Sorry to be a bit critical. But since this is for a QIDI Tech 1 Wouldn't it make sense to share the Gcode or *.x3g files with the optimised settings for the machine they will be printed and used on...?!?!

Also I found the U part of the hinge thin and fragile, prone to breaking. The print layers allow for the part to fracture along where the lines have been printed (both flat and standing up). A thicker design that allows for infill patterns to add strength would be a good revision to make.

IMO, ".stl" seems to be the dominant exchange format utilized in Thingi, and in this instance worked fine with my S3D slicer. Wouldn't the .x3g format make embedded assumptions regarding the material to be used and exactly how it was to be printed etc.? Although many folks swear by ABS, I tend to swear at it more often and printed these hinges in MakerGeeks Crystal PLA. They turned out rather flashy and have not broken with frequent use since Sept 2016.

Works perfectly, been using for months!

Brilliant! Simply a MUST HAVE for the Tech 1. I may even remove the handles and put these on the sides!

Beautiful functional and elegant design - thanks for sharing!

Very glad you like this!

This is a great hinge.

Tip of the hat to you, my friend.

This is the best. Thank you so much for creating this remix. Locking in the open position is awesome. Sometimes I argue with it to get it completely unhitched, but it has never come off inadvertently. You get top votes for a totally elegant solution to a problem I didn't even know could be solved this way.

Very kind of you - thanks!
I find it easiest to unhinge with a gentle pulling motion while manipulating the door from the bottom edge, i.e. the edge farthest from the hinges.
In the beginning I also struggled to unhinge the door, but I found hand placement to be key. The closer I was to the hinge the more struggle and vice versa.

Great remix! I really like the idea that you can lock it in the open position. I didn't even think about putting flats on the hinge pin.

Cool, thanks for the comment!