Dji Spark Clone (the Doji Spack)

myminifactory

The FC mount can be printed using either flexi or solid filament, but flexi gives the FC added vibration damping. The motor dampeners are designed to be flexi as well, but they're not essential for the build. The FC of choice cannot use pinned connections due to limited space under the canopy and direct wiring is neater anyway. Any motor up to 2205 in size can be used (I originally planned to use 1806 motors, but had 2205's handy). The props I used are designed to clear the top of the canopy, similar to Tri's like DalDrops or more common 2-blade props which will strike the canopy unless a spacer is applied beneath the motors to lift them higher off the mounts. The battery is the most restricted point in this design, and anything too big won't fit inside the removable battery bay. I used a ZOP 850mah 70c battery which fits perfectly inside the bay. The battery connector must be fixed in place once fitted (either hot glued or similar) to allow the bay to be slotted onto the frame and the battery terminals to mate without further fuss. WARNING! You'll need a battery bay part for each battery! Hardware used: FC - Naze32 rev6 (direct soldered wiring, no pins) ESC - DYS 4in1 20A MOTORS - Racerstar 2205 2300kv PROPS - KingKong 5045 Tri's (with 5mm tip trimming) RX - FRSky R6b (decased and unused pins removed) BATTERY - ZOP Power 11.1V 850mah 70C 3S (size essential, no bigger dimensions) FPV CAM - Eachine AIO TX03 (adapted from clover to whip antenna) Future add-ons/adaptions/revisions: Prop adapter to allow the use of genuine Spark folding props (I already finished a design for 1806 motors, but haven't perfected a version for 2205's like the Racerstar with 5mm shafts yet) Lower plate revision to allow the use of larger sized batteries without the battery bay (no longer fully resembles a Spark, but you can opt to use higher cell (4s) and/or larger Mah Lipo's for greater flight time/duration) LED pods for the motor mounts (similar to the genuine Spark), either fixed color or utilizing the Naze32's ability to control addressable LEDs and display mode/battery status GPS! Notes: 28/10/2017: Added "battery adapter plate" This adaptation allows the use of larger sized Lipo's than the battery bay can accommodate, with drawbacks being that the frame no longer appears entirely "Spark like" and the original battery securing method can no longer be utilized. As an alternative, a velcro lipo strap around the entire body and lipo works well (please see added pictures for example). NB: I added an additional power supply lead to the DYS 20A 4in1 board that can be tucked away inside the main body when the Spark-like battery bay Lipo's are in use, and can then be taken out and used for larger Lipo's when the adapter plate is in place (see photo's) Added "LED CAM mount" 5mm ultra bright LEDs that run off the same power feed as the AIO cam I've used CAM - Eachine TX03 switchable AIO cam (modified antenna from clover to whip concealed inside canopy) LEDs - standard ultrabright 5mm resistored LEDs (suitable for use with either the 5v or 12v BEC feed from the DYS board) There is a second revision of this design now available, which I've named "the Sparkie". It's still based on this design but allows a much larger selection of Lipo sizes and has been given additional tilt to the motor arms, allowing for more prop options and increased overall stability in the air. If you're after a DJI Spark lookalike clone, then this design is for you. If you're after something with more options and the ability to go 4s/5s for some serious overpowered flight characteristics, I'd use the Sparkie. I personally use the latter and can testify that this much power in such a small package is an absolute laugh a minute.