Accessible Door Knob Adapter

Thingiverse

The STL files are also located at the bottom of this guide

We used PrusaSlicer for this step

We printed in PETG using the following material settings:

120mm/s print speed

0.20mm layer height

Nozzle 245°C

Bed 85°C

15-25% gyroid infill (higher infill will make it more rigid and harder to fit over larger door knobs, but more sturdy)

It will take approximately 3 hours to print depending on settings/material

You may have to open the adapter slightly to allow it to fit over different sizes of door knob

The side with the slight lip should be facing outwards

This step is only necessary if your door knob is too small for the adapter (<54 mm diameter)

Print in TPU with supports and the following print settings:

80mm/s print speed

0.2mm layer height

Nozzle 235°C

Bed 50°C

15% grid infill

Insert the 2 M5x30mm bolts through the circular holes in the handle

Screw the 2 M5 nuts on the other end of the bolts, this should be on the side with the hexagonal holes

Use the hex key to tighten the bolts as far as they will go to ensure a snug fit

You should now be able to open your door as you would with a normal door handle