FrankenStick - Undercarriage and wheels

thingiverse

First to say is this is made up of various sets of parts, body, tail, wing etc. I have put links to the other parts on here at the bottom of this writeup. Use part, all (or none) as you see fit. This paragraph is on all sets of parts to explain what they are part of. This is all part of an idea I had to make a modular plane based on being able to assemble different wings / tails based on a 25mm round or 22mm square tube 'stick' body. Ideal for anyone wanting to play with different configurations. Based on the idea of a 'stick' plane being an actual stick. I used 25mm plastic conduit but CF tubes would be lighter. Each one has a PDF file with photos to help visualise things plus more info and instructions. I used 3mm and 4mm threaded bar a lot, you could glue CF rods but I liked the idea of just unbolting to replace any damage. Adds weight but not a massive amount. Some of the photos may be slightly different to the STLs as they evolved a bit. This makes the plane in the photos, Wingspan 110cm, Length 90cm, Front of wing to Prop centre 20cm, Wing trailing edge to front of tail 32cm. All sizes are not fixed, just recommended averages. CG is about 1/3 from leading edge of the wing but make it closer just in case, again play around, this is meant to be a chassis for whatever you want to do. Weights are Wing 365g and rest of the plane with motor, servos, nose weight and undercarriage (basically as in photos) 650g. Battery is extra, weight is with PVC conduit 'stick' CF would be a bit lighter. If I make any changes / updates in future I will add them here. If you modify or upgrade any parts (feel free) just link them back to here. Updates – None. So, this is the - Wheels and undercarriage. Various wheel sizes that allow foam tyres to fit, comes in 50mm and 15mm hub outer diameter. You can expand either one a bit in a slicer if needed. They consist of a centre which has an inner and outer rim glued to it. A central bearing allows it to spin as it is slightly smaller than the wheel centre. These can bolt into the undercarriage. You can make the wheels wider in a slicer by increasing the Z height. For undercarriage I used 6mm aluminium tube but CF would also work. Legs splay out at 45 degrees all held with glue or small screws. Consists of a wheel centre support at the bottom, see photos, and a top support that will glue to a 90 degree corner. A horizontal support arm is held at the ends, only fixed to the bar and not the legs, provides a little movement. Top and bottom supports also have a slotted version if you prefer a strip of metal / CF. An adapter for the Ping Pong wheel is also provided but I haven’t tried it. Glue on the Ping Pong centre you will find in the Tail section of the links. The Ping Pong tail is mad enough, but it would be fun to see a plane with 3 Ping Pong wheels... Other Franken Parts – Body https://www.thingiverse.com/thing:3708532 Battery https://www.thingiverse.com/thing:3708528 Wing https://www.thingiverse.com/thing:3708569 Motor https://www.thingiverse.com/thing:3708547 Tail https://www.thingiverse.com/thing:3708553 Control parts https://www.thingiverse.com/thing:3708544