December 15, 2024
Description
These are fittings I had to design for my wood working dust collector. everything is sized for 4" pvc schedule 40 pipe that I could get from home depot, you can probably scale the fittings up or down or make spacers to fit other pipe types. I designed everything in fusion360, still designing parts as needed and will upload them as they are designed
The offset fitting is designed to fit onto a 4" pvc pipe on one end and a metal blastgate on the other, has a 2" offset in it at 22.5 degrees. I printed this in pla with 3 walls, top and bottom layers, 5-10% infill.
The adapter is sized to go between an (https://www.amazon.com/dp/B09WWM6X3F) oneida super dust deputy 4" adapter to a pvc 90 degree fitting
the BLAST GATE TO PVC FITTING is sized on one end to have the same O.D. as pvc pipe to fit into a fitting, the other end I.D. is sized to fit around a powertec metal blast gate (https://www.amazon.com/dp/B09SYPGX2P)
-I didn't print the full 90 fitting, ended up printing the 45 twice and gluing them together with e6000 glue. used a couple pieces of metal foil duct tape to hold everything together while the glue cured.
-The control box probably should have been 1/2"-1" deeper, it was a bit tight getting everything pushed back in, I used 6-32 screws 1/2" long to screw the cover on.
-I put 12v linear actuators (https://www.amazon.com/dp/B07ZJ46947) on the powertec blast gates to control them from a central location electronically. I used 2 pieces of 1/2" aluminum (from home depot) cut 4" long to mount the actuator to the blast gate. I used a mix of 6-32, 8-32, and 10-24 screws for mounting everything to the blast gates. Be aware there are some round casting marks on the blast gates where the gate slides, you'll need to file these smooth, I didn't notice them until testing the actuators and they caused issues, they were fairly obvious once I knew to look for them.
-I used these connectors (https://www.amazon.com/dp/B098QBJRFR) for connecting the actuator wires to some 2 conductor 18awg cable that I ran along the dust collector pipes. I just put the connector along the body of the actuator and wrapped a zip tie around the middle of the connector and actuator to hold it in place.
-I powered the control system off a 12v power supply (https://www.amazon.com/dp/B08BZM79DR) and control the gates with polarity reversing DPDT switches (https://www.amazon.com/dp/B07HHVFS5V).
-I used these indicator lights for the control panel to show position of actuator open or closed red (https://www.amazon.com/dp/B09PFNSQ59) green (https://www.amazon.com/dp/B0BXL72DK7) These leds were not polarity sensitive and were lighting up when they weren't supposed to, I ended up soldering a diode to one wire on each of the leds to prevent this (https://www.amazon.com/gp/product/B0D4F2WVS5/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1)
-I used WAGO 221-413 lever nuts for most of the splices within the control box.
-I used 2 of these terminal blocks (https://www.amazon.com/dp/B07CLX1VW5) inside the control panel to distribute power
-I used one of these on/off switches (https://www.amazon.com/gp/product/B07S1MV462?psc=1) for the main power switch in the control panel.
-I used a few red and blue female spade terminals for the switch connections, you can find packs on amazon.
Added a wiring diagram for the control box for a single blast gate. to add additional blast gates, just duplicate the DPDT switch and actuator wiring. you will need to function test the gates to see which polarity gets you the correct position of the gate.
License:
Creative Commons - Attribution - Non-Commercial - Share Alike