250 pod-racer by shawdreamer

Last crawled date: 3 years ago

this design places all delicate electronics inside the frames enclosed interior
top plate - FC (mounting holes for all common sized FC (naze, KK2 etc),battery strap points for 3s/4s battery
middle enclosure - space for 4x Esc & pdb or 4in1 esc (Qbrains etc)
Lower plate - space for Receiver(side plug versions only), Vtx, simpleOSD/MinimOSD, Battery alarm (visual holes in bottom for http://www.ebay.co.uk/itm/New-Airsoft-Low-Voltage-Buzzer-For-2s-3s-Lipo-Battery-Alarm-UK-/262316042074?hash=item3d1341275a:g:vxsAAOSwEeFVOLI5), balance plug extension required
front mounting point for standard 600-700 Sony Tvl cam (tilted 25°)
rear mounting point for XT60 plug and VTX aerial connection (will require a small extension cable).
motor mount holes for common 250 race sized motors (1806's etc)
prop size max - 5"
3s battery max - 2200mah
4s battery max - 1400mah
hardware required -
10x m2x20 bolts
10x m2x10 bolts
balance plug extension (15-20cm)
vtx aerial extention cable (10cm)
update (29/07/2016)
details:-
frame size - exactly 250 (c/c motor)
motor size - 22mm-27mm
prop size - 4"-5"
frame weight - 190g (fully assembled frame only)
tested config:-
CC3d Nano
emax MT1806 2280kv
emax simon series 12a esc
5045 "indestructable" props
1000Tvl ir-cut cam
boscam ts353 tvx
Turnigy 1400Mah 4s
538g (fully assembled weight)
Results:-
stable on stock PID settings
stable acro characteristics
7mins heavy flight time
10mins light flight time
additional (04/08/2016):
Id like to apologise to anyone who has downloaded this design previous to this date and has encountered printing issues with the upper plate, somewhere between downloading it to my computer and uploading it to thingiverse the file had suffered corruption which was causing print errors, the problem has only just came to my attention and I have uploaded a fresh copy of the upper plate that I have test printed to confirm it is error free.
again I'm sorry I didn't catch this earlier.
additional (04/01/2017)
redesigned and re-tweeked all parts to accommodate the use of 3mm hex head bolts (easier to fit and stronger all-round)
changed topmost cover to accommodate a 1s battery (500mah max hubsan type/shape)
added adjustable angle mounting design for Eachine TX01/02/03 AIO fpv cam (runs off a single 1s lightweight battery)
added addition cable wiring access holes to better accommodate wiring through the frame levels without weakening overall structure.
addition of TX02 AIO has multiple benefits, along with the excellent signal strength,range and penetration of the TX02 there is the added side effect of weight reduction, with the AIO theres no need for additional Ubec,VTX,Antenna and wiring which dropped 50g immediately off the fully built frame with battery/RTF (RTF weight with original fpv gear - 548g, RTF weight with AIO and 1s battery - 497g), in addition to that there's less draw from flight battery so slight improvement to thrust and flight times