I made a more compact variant of the great design by ralondo: https://www.thingiverse.com/thing:4096810/

With this variant, the blast gate can be used for wall or ceiling mounted pipes. It uses 50mm (DN50) pipes. Let me know in the comments if other diameters are required.

The slider slides pretty tight, use some multi purpose grease to improve it.

To hold the parts togetgher, M3 x 15mm screws are required.

Update 27.11.2020: Added ConnectorLeftDN50.stl and ConnectorRightDN50.stl which can be used to interface with the DN50 pipe, without breaking up a pipe. You will need a DN50 sealing ring to use it.

Update 18.04.2021: Updated Desgin to be less prone to dust getting stuck inside the blast gate, which is preventing the slider from sliding in completely (see dust_stuck.jpg).

Prusa

I3 MK3S

No

No

0.2

15%