door knob handle (round type knob to lever)
thingiverse
If possible, we should not touch something often touched with our hands in this COVID-19 era. These parts convert a round door knob into a lever type one. You need M4x30-40mm(length depends on the shape of a knob) bolt/nut x3. -- 2020/5/12 update all handles finetuned (shorter handle re-uploaded @22:00 GMT+9:00) (hole position adjusted, thin wall fixed, handle rigidity increased, height of shorter model increased) as a result, maybe more long bolts are required compared to the previous model 2020/5/11 update more shorter handle added (for heavier door) disc(flex) fixed 2020/5/9 update (thin wall fix +α) handle fixed short handle added disc type2(flex) fixed -- This link may help you to push open a door without turning the knob. https://www.thingiverse.com/thing:4311785
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