Hovership MHQ - Foldable Mini H-Quadcopter
by Hovership, published
V2 now available: http://www.thingiverse.com/thing:511668
Non-Commerical = No Printing and Selling
Please pay attention and respect the creative commons license these files were released under. This means the files are available for personal use only. For those without a printer, all the parts are available for purchase at: http://shop.hovership.com
If others continue to disrespect the license I will no longer be sharing any future designs.
The Hovership MHQ is designed for portable FPV flying and capturing video with smaller cameras like a Mobius or GoPro. The frame is an H-Quadcopter layout with foldable arms and a vibration isolated layer for the flight controller and camera.
FPV through tight spaces: https://www.youtube.com/watch?v=a8d_lyni_Lc
First FPV flight: http://www.youtube.com/watch?v=tTA2C6hPz_w
First flight from one of my beta testers:
Motors, ESCs, Power Distrubtion boards, and Printed Kits Available: http://shop.hovership.com
- Hovership H2204X: http://shop.hovership.com/h2204x-2300kv-brushless-motor/
- Cobra 2204 (2300kv)
- SunnySky X2204S
- RCX 1804
- Lumenier FX2206-13
- Tiger MN-1806
- Turnigy Multistar 1704
Props: 5" max
ESCs: 12a, 2mm bullet connectors
Battery: 1300-1500mAh 3-cell, Zippy compact 1500mAh are nice and flat.
Frame Weight: ~133g with all hardware including motor screws
The control deck can fit a controller with a max hole spacing of 45mm. However, it is recommended to use a smaller (lighter) board. The standoffs for the top plates should ideally be 20mm or less. This will require a controller with right angle header pins.
Flight controllers that meet this criteria:
- KK2.1HC: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=39791
- Acro Naze: http://abusemark.com/store/index.php?main_page=product_info&cPath=1&products_id=38
- Flip 2.0: http://witespyquad.gostorego.com/flight-controllers/flip-2-0.html
- Flip 32: http://witespyquad.gostorego.com/flight-controllers/the-flip32.html
- OpenPilot CC3D: http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=76_156&products_id=2152
- Tau Labs Sparky: https://groups.google.com/forum/#!searchin/phoenixpilot/sparky/phoenixpilot/Yw-1yUFcoiE/O80P1omQKNMJ
- DJI Naza Lite
If you must use a controller with straight pins, you will need standoffs that are 30-40mm tall. With this option the battery should be mounted between the 2 top plates as to avoid the copter being too top heavy.
Added a V2 landing gear. This version has a "rib" to strengthen the part for rough landings.
Added a V3 arm. This has the motor mounting holes rotated so that motors with M3 screws can use the groove in the arm to run the wires straight down the arm instead of coming out the side.
Modified both arm designs to be 4mm longer. The added length improves prop clearance from the center plates.
Added a version 2 arm design. I noticed that with motors using the M2 bolts, the way the wires come out of the motor is not ideal. I added a groove to the arm so that the wires can run straight down the arm instead of off the side.
I added baseplates and control decks for 6mm and 9mm vibration dampeners to allow more sourcing options for this part. See instructions for links to suggested dampeners. I have tested the fit but have not flown with these new sizes.
- 16x 6mm M2 or M3 bolts - depending on which motors you use
- 4x 18mm M3 bolts
- 4x 20mm M3 bolts
- 8x M3 nylon washers
- 8x M3 thin metal washers
- 8x M3 lock nuts
- 4x 12mm M3 bolts
- 4x M3 lock nuts
Standoffs (to separate the upper decks):
- The two deck plates that are separated with these standoffs have holes for 8 but I found that 6 was enough, 3 in opposing corners.
- For a flush mounted controller with right angle pins, 6x 15mm or 20mm female threaded standoffs/spacers.
- For a flight controller with vertical pins, 6x 30mm female threaded standoffs/spacers
- 12x 5mm M3 bolts
- ATG small grey (7mm hole mounting): http://www.goodluckbuy.com/4-pcs-atg-anti-vibration-sphere-av-ball-high-elastic-rubber-ball-dual-head-anti-vibration-for-ptz-small.html or http://www.aliexpress.com/item/ATG-AV-Ball-High-Elastic-Rubber-Ball-Dual-head-Anti-vibration-for-PTZ-Small-Grey-color/1023411887.html
- 6mm: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=37447 or http://www.aliexpress.com/item/9mm-M3-High-Elastic-Rubber-Ball-Dual-head-Anti-vibration-for-PTZ-4piece-Pack-Free-Shipping/1023197247.html
- 9mm: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=40615 or http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=40614
- I have only printed these parts with ABS which have held up well in crashes. PLA might not hold up as well but these parts are all cheap to print replacements for.
- Arms and base: print at 80% infill. Depending on the abilities of your printer, you might need supports for the base model. There are recessed clearance holes on the underside for the 6 vibration dampeners.
- Deck and arm plates: 30% infill
- Base: 1x (pick 6,7 or 9mm depending on the size of vibration dampeners being used)
- Arms: 4x - file named v2 includes a groove for the wires to run down the arm on motors that use M2 bolts. v3 has the mounting holes rotated for motors with M3 bolts to use the groove for wires to run down.
- Arm Plate: 2x
- Deck control: 1x (pick 6,7 or 9mm depending on the size of vibration dampeners being used)
- Deck cam: 1x
- Landing: 2x
Full build guide available here: http://www.hovership.com/guides/