Door Opener Advance

Advance your contactless door opening to the next level! Designed to minimize contact with contaminated surfaces during the SARS-CoV-2 pandemic.

This is the advanced version of the simple door opener (thing 4285440) with an integrated cover for the hook part to avoid touching the contaminated area while carrying.
[Door Opener Simple](https://www.thingiverse.com/thing:4285440)

It uses a folding design similar to a pocket knife:
* Locking when open - enables use of the tip to push objects
* Retention when closed - avoids contamination while carrying

Uses hardware from typical 3d printing supplies like cylinder/cap head screws, bed level adjustment springs.

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**Update!**
Upgrade parts compatible with the base model are now available.
[DO Advance - Upgrade Parts](https://www.thingiverse.com/thing:4296582)

**Compatible designs and remixes by other people**
[Printed Screw/Dowel](https://www.thingiverse.com/thing:4348610) by frogydiak.
[Touchscreen Addon](https://w