Practical doorstop

Stop it!

Yes, I'm back with more bad puns and a useful print.

This practical, easy-to-print design was something I threw together in Fusion 360. I didn't want a Hodor (sorry) or a solid doorstop. Instead, I wanted something that would squish a little, grip the carpet, and truly hold the door.

Designed to be printed in a flexible material (semi-flex seems ideal), this doorstop has "teeth" on the bottom to grip carpet and "bumps" to grip the door in a ratcheting fashion. While this might work on a hardwood or other bare floor, eliminating the teeth might give better grip.

Pushing the door against the doorstop will compress the doorstop a bit, allowing the ratcheting action to take place. In fact, when sufficiently compressed under the door, this doorstop will actually prevent the door from moving in either direction from a breeze - perfect for days when you can't predict how nature might toss about your doors when the windows are open.

Is your printer unable to print flexible material? You certainly can try PLA, ABS, or some other material and try your luck. With a somewhat plush carpet, you might have luck. If you do, post your make and let me know!

Check out thestrangely satisfying video on YouTube: https://youtu.be/\_sBXNNziRxc

If you want to support me and get GREAT filament at the same time, please visit Proto-Pasta using my affiliate link and get yourself some excellent HTPLA!

Print instructions

Category: Household Print Settings

Printer: BobsCNC RP9 v2

Rafts: No

Supports: No

Resolution: 0.3mm

Infill: 50%

Notes:

I used TPU filament from FoxSmart - a semi-flex material. This works great at slow speeds even in a bowden setup (18-20mm seems to work just fine). Just make sure not to squish that first layer too much or you might have that filament herniate right out of your extruder.

It's a long print (8 hours for the slow speeds I took to print the semi-flex) but the end product is quite effective!

If you want to avoid stringing and wisps, use the settings in your slicer to avoid crossing boundaries. It might take a bit longer but it can result in a flawless print.