I put one of these together. It’s so much fun. The previous tips have been super helpful - I used a 20cm high foam board support to get the camber looking right, and the zip tie tail skid (with a triangle foam board support), and sewing clips instead of rubber bands. I also taped 2 bits of popsicle stick on top of the trailing edge, over the length of the rear mount, to keep the clips from digging into the foam. Unless I crash hard this thing should hold up a long time.
At the end are links to the parts I used, most of which I had lying around. The motor in particular is great, and a real bargain on sale for $6. I got the CCW version before it went out of stock, but I’m sure you can just use the CW in reverse. Or get a CW prop…
Together with the gem fan 6042, it’s very quiet, smooth and has plenty of power on 2S. Big graceful loops. Maybe unlimited vertical - haven’t really tried yet.
For the shaft, I used a 7mm x 1m tube from Radical Rc. It’s $7.5 and min order quantity 6, but you can mix with other sizes and shipping is very reasonable. These are stiffer than most arrow shafts.
I cut it to ~26” long. This might be on the short side. Plane is very lively on pitch! But easily tamed with expo, rates.
I printed the 3d parts as is. With the above tube, parts had a great slide fit and I CA’ed in place once the CG was right. But your results might vary depending on how your printer is calibrated. The above motor mounts with no effort or finishing required.
I saw the comment about the pushrod routing being too restrictive. I didn’t find this to be the case.
The batt I like too, it’s long and narrow, keeping with the stick look and I get long flight times. The energy density is higher than any other lipo I have.
Flyfun 20a v5 ESC (no link)
For landing gear I used 2mm piano wire, 50mm foam wheels, and 3d-printed elbows I designed for 2mm screws to go in as axles. Happy to share the file. Tried 2mm carbon tube but they broke on first landing. Maybe solid carbon would work and be lighter, but I like the durability of the steel.
Hope some of this is helpful to anyone looking to build.
https://www.buddyrc.com/products/su...hless-motor-cw-on-sale?variant=30735587082326
https://www.getfpv.com/gemfan-flash-6042-durable-2-blade-black-set-of-4.html
https://www.racedayquads.com/produc...h-60c-lihv-whoop-micro-battery-long-type-xt30
https://www.radicalrc.com/category/Carbon-Rod-Hollow-410
View attachment 239366