New Tricopter Delrin Kit available late August

The new Pro Tricopter Delrin Kit from fpvmanuals. Motor mounting options: Up or Down. Super precise, slop free Yaw mechanism with ball bearings and airplane grade aluminum axle. Foldable boom design. All laser cut parts including Delrin frame and motor mounts, Bamboo camera mount, and acrylic feet and flight controller cover.  Over 142 pieces of hardware included in the kit. All up weight, fully built, only 630g (without battery). Kit does not come with booms/arms: your choice on material and length to suite your needs. Learn more about the kit at:

Kit available late August / early September for $89.99

(put yourself on the pre-order list to get it for $75 when it becomes available)


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Comment by Robert Krogh (hooks) on August 18, 2011 at 10:32am

Plexy Glass: Cheap yes.. Any good? No...

BTW: looks good.

Comment by Tim Nilson on August 18, 2011 at 10:38am
Hooks: Only the flight controller cover and feet are acrylic. The frame and motor-mounts are made of Delrin -- a super strong plastic that, in my opinion, performs better than fiberglass. Fiberglass is harder and will break on hard impact. Delrin will give instead of breaking on a hard crash. Delrin is, in my opinion, also a better choice for FPV tricopters over carbon-fiber as it does not interfere with the video signal, which carbon-fiber can.
Comment by Tim Nilson on August 18, 2011 at 10:45am

What else is made from Delrin?  Guitar picks! Thin Delrin that can be hit against metal strings for hours on end, with force and without breaking makes for a good tricopter frame material.

Comment by Alex Lee on August 18, 2011 at 12:26pm

any chance on making your mounts dual's for those who want the extra lift of a Y6?

Comment by Tim Nilson on August 18, 2011 at 12:37pm

Alex -- Great question!! The mount is the exact same on the top and bottom.  If you use the suggested AX-2213N motors, you can even use the included hardware to mount 2 motors on the same mount.  The only thing you'll need is another plain motor mount -- as the back mount is different due to the Yaw assembly -- you could still mount two motors on the back mount, but you'd have to fix the rotation of the Yaw, maybe with some tape.  I am thinking of making extra motor mounts an optional accessory for building a Y6.

Comment by Robert Krogh (hooks) on August 18, 2011 at 12:51pm

@Tim: You are so right. Delrin would be perfect material.

I'm working myself on a Y6 design but made out of Carbon and Alu. It's made for heavy loading.

Comment by Tim Nilson on August 18, 2011 at 1:04pm

Hooks -- not sure if it's intentional and just to make sure it's clear: the tricopter kit posted here is a kit, available for sale, that is made from 2.3mm Delrin.  You said "delrin would be perfect material"... what I am saying is that "Delrin IS the perfect material" and the reason we used it for our kit.


I like your Y6 design :)

Comment by Axure on August 18, 2011 at 4:27pm

Very cool stuff.  Love the foldability.  But we want to see a flight video!


Also, performance questions immediately pop up to mind: What's the acceptable payload? (I can see on your website it can take a Go Pro.) What's the flight time? etc.

Comment by Don Cramer on August 19, 2011 at 4:00am

Im already on the pre-order list but i do have a question... Is there enough room to mount the ArduPilot/Oilpan within the frame as well as gps?. It is a bit larger than the kkmulticopter controller but after my last kk experience i much rather use AC2.

Comment by Tim Nilson on August 19, 2011 at 5:40am

@Axure:  I will take some video and post it.  The recommended props can produce thrust of about 700g each -- or 2100g total.  The fully built kit without lipo weights 630g.  Add a 200g lipo and 200g GoPro and your at around 1kg -- or about half of the thrust total of the engines.  This assumes you're using 10x4.5 props and a 3s Lipo.


@Don -- The frame has 20mm of space between the bamboo camera mount and the bottom frame plate.  You can fit a bunch of things in there.  The flight controller space on the top was sized to fit a multiwiicopter board (which is round and bigger than the KK board).  If you send me the dimensions of the ArduPilot/Oilpan board, I can confirm it'll fit well under the orange flight controller cover.


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