Spec-R FPV Racer by Cronos-FDM

Last crawled date: 3 years ago

I designed this after being un-satisfied with another model i was using from Thingiverse last year, this is still a major WIP and is currently only suited to the parts i had to hand when building. I will improve the designs compatibility once im happy it performs ok. My current prototypes are being printed in PETG but the final revision i plan to print in Carbonyte.
The frame is Approx 258mm Prop to Prop, and was weighing in at 700g with the battery and GoPro fitted when printed in PETG, should be lighter and stronger when in Carbonyte. It is designed to use 5inch Props.
There are currently different versions of the Base to accommodate different FPV camera Angles, i will make this adjustable in the near future.
The current hardware supported is as follows (others will probably fit):

Naze 32 Flight Controller (Illuminati 32 to be exact).https://hobbyking.com/en_us/illuminati-32-flight-controller-with-osd-cleanflight-supported.html


Matek Systems PDB.http://www.hobbyrc.co.uk/matek-xt60-pdb-5v-12v-bec?gclid=CjwKEAjw5_vHBRCBtt2NqqCDjiESJABD5rCJtmWoeoenSmRqo3EAdzJX9XAKFAN6KWUxBjC-O2ztahoCoInw_wcB


FrSky X8R Rx.https://hobbyking.com/en_us/frsky-x8r-8-16ch-s-bus-accst-telemetry-receiver-w-smart-port.html


Eachine ET600 - 600mw Video Tx (or any).


Aomway Clover Leaf Antenna Set.https://hobbyking.com/en_us/aomway-5-8ghz-4-leaf-clover-antenna-set-for-tx-rx-sma-rhcp.html


RunCam Owl 700TVLhttps://hobbyking.com/en_us/700tvl-starlight-fpv-camera-true-0-0001lux-fov-150-pal.html


Zippy Compact 3S 2200mah 35C (or upto Similar Size).https://hobbyking.com/en_us/zippy-compact-2200mah-3s-35c-lipo-pack.html


Multistar Elite 2204-2300KV (Or similar with 16 x 19 M3 Mounting Holes).https://hobbyking.com/en_us/multistar-elite-2204-2300kv-multi-rotor-motor-cw-prop-adapter.html

Turnigy Plush 12A ESC (or whatever).
All fixings are M3 x 10mm Low Profile Hex Screws (Head dimensions 5.5mm x 2mm), you can get them and the matching Nyloc Nuts from ACCU Group:
Screws:https://www.accu.co.uk/en/low-head-cap-screws/8723-SSCL-M3-10-A2
Nuts:https://www.accu.co.uk/en/hexagon-nylon-locking-nuts/7944-HNN-M3-A2
The battery, GoPro & rx straps to be used should be 20mm.
You might also need some 2 or 3mm Nylon spacers (or i used Nylon M3 Nuts) to space between the PDB and the Flight Controller.
Assembly is simple, my Motors, ESC's & PDB are soldered connections.
The Rear XT60 should be soldered with the appropriate gauge wire to the PDB just long enough to sit in the correct position at the back. Once it is in position you can fix it using the clamp and M3 Screws.
The FPV Camera should be fitted into its slot and then the Clamp Fixed using M3 Screws & Nuts, this can be awkward to do once the motors and props are on. Also fit the M3 Nuts into the rear of the Camera Clamp in order to fix the Front Shroud later.
Fit the Motors, ESC's & PDB to the base, the Motors are fixed using the M3 x 10mm screws, the screws should fit through the feet and into the motors, do not forget the feet otherwise you will screw into the motor winding.
The ESC's are held down with cable ties (2 per ESC), the cable tie routes are radius'd and should be easy to get through.
the Illuminati 32 should be snapped into its case and then screwed down, on top of the PDB, with or without spacers. Make sure it is level.
Prepare the rest of the wiring loom then fit the Battery Deck onto the Base.
Fit the Rx, Vtx & Rx Antennas to the Radio Deck, the X8r antennas slide under the GoPro Vetrical Strap anchors, and then into their positions, this stops the GoPro sitting on top of the wires, the antennas are secured using a cable tie. the Radio Deck has a central channel for the Vtx wires to pass under the Rx. The Vtx is secured using cable ties.
The Straps should be fed through the Anchor Points on each side of the Radio Deck and then either Glued or Stapled to fix them, two straps per side that meet in the middle - for both the GoPro and Rx, if you want to use the GoPro Vertical straps then you need to do the same there as well.
The area behind the shroud is supposed to be used to hold the majority of the wiring and connectors. This entirely depends on how you wire the components.
The shroud is fixed by using the M3 Screws & Nuts.
There are Cable Routes at the Front & Rear for LED strips to be fitted, though i have held off on this for the time being.
Im sure i have missed something so please ask questions, Check the pics for clues on the awful assembly instructions.
Thanks
Alex