ARS-5 v2.0 3D printed 5"
By Dave_C FPV on Jan 26, 2019
After the first shot at designing a fully printable 5" Inch Frame worked out better than expected I made
a few updates and improvements.
You can get the files for free on Thingyverse by just following the link in Part List.
New Features of the V2.0
- Closed top plate to make fixing the VTX easier
- Closed bottom plate with slot for FrSky R-XSR
- New 45° SMA antenna mount
- Thicker 4.5mm Arms
- Rear standoffs more narrow than front (no function, just looks nicer)
- More space for the ESC/FC stack
- Got rid of the zip tie holes in the arms to make them more stable
After playing around with a few materials this latest version is made out of cured PLA.
You simply leave the print on the heat bed at 100°C for 30-45min at put an old filament box over it to create a little oven. The curing releases tensions in the material and changes the microstructure to make it much more resilient. Carbon Nylon was a total fail ... Super expensive and way to soft unfortunately.
Photos
Part List
Show stores (6)
Hi Dave... (not numbers... just in general), what are you doing with your PIDs? I took my ARS out on its maiden and it came down with some HOT motors, lol. I'm not real great at tuning. I kinda need pushed in a direction or I just make it worse.
Hmm .... Does the frame feel stiff enough? What material and infill? A frame that is too soft and wobbly could lead to those hot motors. But there are probably a dozen other possible reasons. Are the components new and un-damaged?
The prop. pitch is too high yes but that shouldn't be that much of an issue.
Ummm. I do not know if it is stiff enough. It is PLA, but TBH, I don't know the infill... some cat at work printed it up for me. It feels stiff, but maybe I am just hopeful. I haven't got to reduce D (and fly it). Still monsoon season here apparently.
Edit: I spoke to Hyperdrone and they said that the 2204 2722 should be able to handle that load of prop on that ESC no problem. I trust their word on that. I'm thinking it is maybe not as rigid as it needs to be.
Oh snap! A 5" version! This thing looks awesome! I just ordered the Calimero (print service), but I think I want to build the big guy too!
How tall is that stack from the bottom of the standoff to the top of the screw? Will it fit on a frame with 20mm standoffs? The specs say it's 19mm, but I can't confirm if that includes the tips of the screws.
unfortunately I can't measure it right now I am on a business trip all week.
I did not use the standard nylon spacers but instead two long nylon screws and some nylon washers to get the stack lower.
There is room to gain a few mm. So if the spec sais 19mm and you don't use the standart mounts it should be doable to get below 20mm... No garanty that I am right though...
Thanks for sharing your design. I am new to build drone. Could I know which RC remote controller do you use for the drone? How could I get the vedio from FPV camera to pc/mobile? I appraciate for your help!
It's an interesting design. How long does it take you to remount on a new frame? It seems the stack stays intact on the plate which should save a lot of time. I will experiment with the curing. Btw, for strength, have you tried PolyMaker PolyMax PLA? It's expensive but seems to be much stronger than regular PLA.
Nice design. How's the flex? Break any yet?
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Excellent, looks great!
I like it too. =]
Well... lol... this one came out... a "mixed bag". I guess it would only be proper to tell you in Dave_C's comment section that what I ended up doing was using the frame from the ARS-5 and the canopy from the ARX-R in order to get what I personally needed out of this build. The result is magnificent despite the costs being comparatively minimal.
https://rotorbuilds.com/build/18617