Round Door Handle No hands Lever by Littlefiver

Last crawled date: 4 years ago

My house has Spherical/Round door handles. I wanted to make it so I can open them without any hands. There are a lot of these designs for lever door handles, but I found none for spherical door handles that are common in homes.
You will need to print two parts.
Door Handle Extension (fits around the door knob) Blue in the photo
Door Handle Accessory (the "Flap" part) Red in the photo
I have tested this on two brands of door handles of different sizes. Defiant brand door handles are 54mm in Diameter. Schlage brand door handles are 51 mm in Diameter. If you need to scale the Extension, you will likely need to scale the Accessory part too.
I was planning on make different "Accessory" flap parts, but this one seems to work for me. You can remix your own design.

*Important*
In order to make these extensions not slip, I added a rubber band under the 3d printed part. You may need to do the same, unfortunately.

You will also need some M3 bolts. This is what I used.
1x M3 x 20mm
2x M3 x 8mm (These hole the Accessory and are threaded right into the holes of the Extension)
1x M3 Nut

*Update*
I added three more sizes to accommodate if you need to add a elastic band or other grip material, try one size up from the actual handle diameter. So now there is 51, 52, 53, 54 and 55 mm spherical sized Extensions. If you need a different sized extension, let me know and I will see what I can do.