5inch Shuriken by iClint

Last crawled date: 3 years, 1 month ago

5" Shuriken
The design brief was a small robust X-Frame 3D printed quad. The arms are designed as weak points. While they should hold up well, they will break in a heavy crash (Update: I have crashed mine hard a few times now and the arms are yet to break) without damaging the core of the frame and can easily and quickly be replaced in the field with only a hex key and some fresh zip-ties for the esc and wires. The upper frame protects the electronics.
Features:
Only 100g including all fastening hardware
Arms quickly and easily replaced
Light but designed to adequately protect expensive electronic components
Cheap to build at around $10 compared with $100 or more for a store bought CF frame not to mention cost of replacement parts
Designed for standard and readily available Flight controllers RX, FPV and VTX gear
True symmetrical X-Frame design
Ready To Fly weight only 390grams including battery
Want to show your thanks?
Tip me $2 and I will remove the branding from the panel on the front of the Frame under the camera and send you the file.
Tip me $5 and I will customise the front panel with any text or image you like embossed or depressed into the frame and send you the file.
Tip me $10 and I will send you the source files in any format that can be exported from Fusion360
I've completed my printing and will begin assembly in the coming days and update this design with full instructions.
https://youtu.be/MyM_CfdMHaI
Updates:
20/6/18 - Thickened Antenna pannel
19/6/18 - No longer a work in progress project is complete
Some minor tweaks to parts (best to redownload all files)
Arms stretched by 5 mm for added prop clearance
Frames adjusted for prop flex clearance
Added detailed print settings
Added short video

11/6/18 - Added some photos of my completed frame, total weight with all fastening hardware was an extremely respectable 100g this is better than comparable commercial carbon fibre frames, and I honestly think equally as strong and if not who cares when you can print a complete set of spare arms in under 2hrs for a few cents.
Required hardware:
8x M3x2.4mm nuts
2x M3 Nylock nuts (camera mount)
8x M3x12mm Countersunk screws
8x M3x8mm Countersunk Screws
4x 5.6mm plastic standoffs
4x 3mm thread inserts
4 x 38mm aluminium spacers - (could be substituted for a printed spacer)
Designed for use with:
Runcam Owl
BetaFlight F4 (or other 30.5x30.5mm Flight controller)
ImmersionRC Tramp HV
FrSky XM+
2205 23000-25000kv motors
5inch props
Other required parts:
Antenna tube
XT60 Battery connector
12-14awg wire
22awg wire
Velcro (3M Dual Lock is fantastic https://hobbyking.com/en_us/automotive-grade-plastic-velcro.html)
Battery strap
Note: The cut out in the Frame-Left is to allow for access to the USB port on the board, the cutout shouldn't change the strength much but testing will tell. Alternatively the Frame-Right could be mirrored in your slicing software and used on the left.