Tricopter US 1/2 booms

thingiverse

Original text: Hello all, These are parts for thing:231205 by peddiparth. Motor mounts have 25mm spacing. see instructions for more info! Instructions parts list. 3x 1/2" wooden dowels. my front 2 are cut to about 14 inches and the aft is about 12 1/2. you can change the lengths if needed... 10x #6 32x1in machine screws (got mine at home depot) they come with nuts but I bought locknuts and washers which is optional. I would suggest using Loctite at the very least. super glue 2 bearings 5x13x4 (I,O,W) 1CF tube or rod, aluminum could work, 5mmx50mm ball links and pushrod for tail. electronics I used are: exceed rc rocket series 3010-1100Kv motors (lots of power) 20A escs (got mine from quadrysteria but had to reflash with a different version of simonk) KK2.1 flight controller 3S 4000mah 30C lipo digital metal geared servo for tail, 9-11g is fine. The battery tray is glued together, spacers are not glued on. The tail is a little more complicated. insert 1st bearing into motor mount, put plastic spacer onto CF rod and slide it on until there is 4mm of CF rod sticking out, insert the 4mm into the bearing in the motor mount. NOTE: if the spacer is not a VERY tight fit, add a very small drop of glue to hold it on the rod. slide the other bearing onto the other end of the tube and press into motor mount, it should be flush. slide the tailcap onto the CF rod and press against the motor mount, glue the tailcap onto the motor mount, this holds the bearings in! the spacer in turn holds everything in place..... drill a 35mm deep hole into your dowel that you are using for the tail (straight and centered as possible). I used an 11/64th drillbit I think, it is just under 5mm but makes the CF tube a friction fit so you don't need to glue it in. Press the CF tube into hole (make sure your tail servo mount/gear is on first) and leave about 1mm of clearance between the two. add the servo and pushrod and go fly! you can tap that yaw mount into the boom with a hammer if needed! Revised text: Greetings! This is for thing:231205 by peddiparth. Motor mounts have 25mm spacing; see instructions below. You'll need: - 3 x ½" wooden dowels (front two are approx. 14 inches, rear is 12 ½), adjustable lengths - 10 x #6, 32x1in machine screws (Home Depot source) - come with nuts; I opted for locknuts and washers, Loctite suggested - Super glue - 2 bearings (5x13x4, I/O/W) - 1 CF tube/rod, 5mm x 50mm (aluminum works) - Ball links, pushrod for tail - Electronics: - Exceed RC Rocket Series 3010-1100Kv motors (plenty of power) - 20A ESCs (Quadrysteria; required reflashing with SimonK v2.4) - KK2.1 flight controller - 3S 4000mAh, 30C lipo battery - Digital metal geared servo for tail (9-11g suitable) The battery tray isn't glued; spacers are removable. Tail assembly is more complex: 1. Insert first bearing into motor mount. 2. Put plastic spacer onto CF rod, slide it till 4mm protrudes. 3. Insert 4mm into bearing in motor mount (glue spacer if needed). 4. Slide second bearing onto other end of tube, flush with motor mount. 5. Attach tailcap to CF rod against motor mount; glue tailcap for secure bearings placement. Spacer holds everything in place. 6. Drill 35mm deep hole into dowel (straight and centered) for tail. Use an 11/64th drill bit (under 5mm). No need to glue CF tube, just friction fit it. 7. Assemble tail servo mount/gear, insert CF tube into hole, leave 1mm clearance. Add servo and pushrod, then fly! You can hammer in the yaw mount if needed.