Benjamin Thibault
TVWBB Member
I designed this damper some months back, with a little input from SteveCK. My intention for it was to be small, and most importantly not stick out very far. I wanted to be able to drill a hole in the middle of the bottom of an UDS, and have it fit nicely between it and the ground without needing to lift it very far off the ground.
I don't actually own a 3D printer, but I sent a couple revisions of it to 3D hubs and had prints sent back to me. I haven't printed off a copy of the current (hopefully final revision), but I think it will work just fine.
It is a Rack/Pinion type damper. A gear pressed and glued onto the servo splines moves a door with a built in rack sideways uncovering the path to the cooker and a fan (which is optional I guess). It's designed around a 40x40x15mm fan (I used http://www.digikey.com/product-detail/en/AFB0412SHB-SP04/603-1486-ND/2560610) which significantly outperforms the blower recommended as the stock Heatermeter fan. Though, for most cookers I don't think the added airflow and static pressure is required.
It's designed to accept the 4 pin Phono Jack that was talked about in the MicroDamper thread (Shamelessly stolen idea). You will need to print the Main portion of it, and drill a hole through the opening for the wiring into the fan housing area. The hole for the servo wiring should print just fine though.
I know there was talk of linear surface area, cross sectional area and airflow and the whole nine yards. I believe this is a significantly larger cross area (40x40=1600mm) than other dampers and being as it's an expanding rectangle the opening is linear.
Thingiverse Link
http://i.imgur.com/4pQNpTs.png
http://i.imgur.com/qcB4wCv.png
http://i.imgur.com/T7foE2Y.png
http://i.imgur.com/EFclXuE.png
YouTube Video of early prototype work. The gear and rack were bought off eBay before I got around to modeling some. I think they work better, and would prefer to see if I could find an elegant way of using them instead of the printed one.
The design is by no means complete, but it should be functional. I do not know when I'll get around to finalizing the design, and I release the files freely to the community to do with as they want under the Creative Commons - Attribution - Share Alike license.
I don't actually own a 3D printer, but I sent a couple revisions of it to 3D hubs and had prints sent back to me. I haven't printed off a copy of the current (hopefully final revision), but I think it will work just fine.
It is a Rack/Pinion type damper. A gear pressed and glued onto the servo splines moves a door with a built in rack sideways uncovering the path to the cooker and a fan (which is optional I guess). It's designed around a 40x40x15mm fan (I used http://www.digikey.com/product-detail/en/AFB0412SHB-SP04/603-1486-ND/2560610) which significantly outperforms the blower recommended as the stock Heatermeter fan. Though, for most cookers I don't think the added airflow and static pressure is required.
It's designed to accept the 4 pin Phono Jack that was talked about in the MicroDamper thread (Shamelessly stolen idea). You will need to print the Main portion of it, and drill a hole through the opening for the wiring into the fan housing area. The hole for the servo wiring should print just fine though.
I know there was talk of linear surface area, cross sectional area and airflow and the whole nine yards. I believe this is a significantly larger cross area (40x40=1600mm) than other dampers and being as it's an expanding rectangle the opening is linear.
Thingiverse Link
http://i.imgur.com/4pQNpTs.png
http://i.imgur.com/qcB4wCv.png
http://i.imgur.com/T7foE2Y.png
http://i.imgur.com/EFclXuE.png
YouTube Video of early prototype work. The gear and rack were bought off eBay before I got around to modeling some. I think they work better, and would prefer to see if I could find an elegant way of using them instead of the printed one.
The design is by no means complete, but it should be functional. I do not know when I'll get around to finalizing the design, and I release the files freely to the community to do with as they want under the Creative Commons - Attribution - Share Alike license.
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