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

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

Compatible designs and remixes by other people
Printed Screw/Dowel by frogydiak.
Touchscreen Addon by jmpierson.
Less Hardware Remix by eram.

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Hardware needed

• 2x M5x12 cap head srew OR 1x dome head + 1x cap head (alternative top cover provided)
• 4x M3x10 cap head to keep everything together
• 1x M3x8 as a thumb knob
• 2x M5 nuts either 3d printed (model provided) or metal
• 4x M3 nuts (optional, alternative bottom cover provided)
• 1x compression spring 5mm (from ball point pen or 3d printer bed leveling spring)

Design Requirements

Contactless operation of

• Door handles
• Faucets
• Light switches
• Smaller handles on cabinets etc.

Design

• Main hook with 2.5cm diameter for pullig large handles
• Pointed tip at the end of the hook for pulling small handles
• Angle cutout at the tip for pushing small objects
• Angle between hook and handle for pushing larger/heavier objects

Minimum print recommendation

Printed in PETG:
0.4mm nozzle, 0.2mm layer height
3 Perimeters
4 Top/Bottom solid layers (rectilinear)
40% infill (stars)

Demo Video see below