Our MultiWiiCopter Control boards PARIS Sirius™ allow you to build a multicopter which can produce excellent video and still images. SCARAB MultiWiiCopters are much are VERY stable, Rigid and strong - engineered to be minimalist (low drag booms) Scarabs offer longer flight times for LOS and FPV. Quad SCARAB Kits require assembly which takes 5-9hrs depending on the experience level/ability with tools, soldering wires and balancing props. Flying is fun but rest assured that EVERY expert flier is ALSO an EXPERT builder - it goes with the territory. We encourage you to build and learn.
(ABOVE) The extreme light weight Dupont Delrin and Full 3Kweave 2mm Carbon in this SCARAB - make possible handling that allows a Scarab Stealth Armour Trainer to be flown on a PARIS in ACRO mode with fast yet stable results - CrazyJ in USA shows us how it handles.
Noobs - Building can be very satisfying and educational. Below are series of build-videos from one of our customers at Expert Level "Deet" - its worth absorbing all Deet's building recommendations and combining that with the photos and instructions on the product pages themselves and downloadable instructions. Thanks to "deet" for his build videos. Please note that Deet methods are his own, and the aircraft/versions he owns may be different from the newer versions you purchase. Its a great way to spend some time seeing an expose of an expert builder and how he does things "his way".
The success and the stability of your multicopter SCARAB Kit controller by your PARIS Sirius™ will depend upon pilot skill , correct use of modes, your disc loading and how well you balance your props. If you build lite and keep the aircraft lite it will fly like a dream. Usal payload is a GoPro HeroHD2 or HD3 , a Panasonic GH2/GH3 or Nex5/Nex7 or a NikonV1/J1 camera. SLR cameras can be flown but their large heavy mirror designs are irrelavant in the air when the pilot is actually on the ground not using the mirror box. The new generation of mirrorless cameras such as the GH2/GH3 and Nex5/Nex7 which produce Pro quality video as minimal risk - a 1-3kg multicopter has far less energy, less noise and risk to person and property on the ground, compared to a 6-9kg copter carrying a DSLR. In making your Airframe we recommend a Quad as a trainer aircraft - followed by a 2nd aircraft later - a six engine Multicopter like Vampire or YSiix to conduct professional photography as this offers single engine redundancy - should an engine fail then a six engine multicopter can fly on the remain 5 engines. A light fpv quad is 650g and a larger Scarab Quad is 1350g with LiPo and mirrorless camera onboard. Above this weight we recommend Vampire and YSiixKopota for better payload. If you are a beginner you CANNOT jump past the training phase - you must start with a SMALL QUAD TRAINER
The MultiWiicopter team commandments - We wrote this list in RC blood - this is not some cheap cut-n-paste - read and pilot-up - multicopter are complex aircraft not toys ....
Balance all Motors - dynamic - you must do this step.
Balance all Props - static on a prop balancer and also dynamic by running them to check vibration and eliminate it - if you have not balanced your props you are an ameatuer hack - sorrrrry - but it's true - you will create a raft of problems for your IMU and your video productions - just do it and accept that this is part of multicopter culture and setup - Do not bullshit yourself.
Check all Prop adapter collets and shafts are true - not bent - check each prop & motor combos are balanced and vibration free when running
Mount all sensors on gel or gel foam tape - always - we recommend PU Gel or high end Helicopter mounting tape for the IMU - do not use the dji tape supplied - we dont Be sure to separate all electronic devices at least 90mm from other devices - Do not place the CPU or the IMU up close to ESC, GoPro or FPV gear!! Bad idea. Monitor the Pilot LED lights at all times especially dji products for "white Sparking" in flight - ignoring or failing to understand vibration of interence issues is a classic noob trap.
Mount all GPS/MAG pods well away from all RMI ESC and the main LiPo - we built a tail section for our s800 for this - or use the DJI lollypop stick - but make sure it not blurred - ie vibrating
Solder all wires with solder flux paste amtech 223 - don't use cored solder or weak soldering irons - we use a FAST 80w iron with a very large copper - the s800/z15 pulls ±32amps in hover at 25v - we used XT60 (60 amp rating) but we take care to size them to make sure they are tight (not the plastic - the pins) - make sure the soldering is perfect either way by using flux paste and a really big (fast) iron head. XT60 can handle short burst of high temp but not long slow heat from small irons.
Set all failsafe channels and test them LIVE to check the stability of the RC signal - we set up a mix, to shift the modes channel to failsafe - with a switch
Do a proper RC range check of the RC radio with all FPV gear powered on - dont get lazy and skip this check - its very important
Test all FPV gear at 200m on the ground - establish which of the 8 freq. is the strongest at long range - Do not mount FPV antenna near RC in or near carbon
Check all push connectors are firm - loose or soft connection cause engine/esc failure - for S800 and RC connectors use contact-X on all push on RC connectors - Esp in coastal zones
Check all data line are 100% secure - tied but not pulling - For dji PCB pins - check none are loose or wiggling
Check all props for fatigue cracks or stress fractures
Do a pull test on all Props before every flight to check security - for s800 check the props tip-plane-path from the side
Do post flight temp checks on all ESCs and all motors
Telemetry Monitor every cell of the LiPo in flight with Quanum or similar - do not rely on total voltage alone
Route all data lines well away from ESCs - for ESC this is easy as the ESC are under the motors
Operate the CPU/IMU on a dedicated 3S DC bus for large multicopters - this isolates DC spikes from motors from effecting the CPU
Check all wires for airframe shorting - dull down any sharp edges on carbon with a diamond file - pinched wires, cut or chaffed wires will cause major issues - check
Check the airframe is grounded to prevent static entering data lines - props create static - it has go somewhere
Separate all RC receiver antenna wires by 90° and keep away from carbon structures - dont tape antenna near carbon landing gear
For all push connectors - ie s800 booms or all RC plugs - use Inox or Corrosion-X or Deoxit Gold similar sprays to prevent corrosion - less is more - blow away excess with air gun nozzle
Ground your aircraft at the slightest hint of abnormal ops of any component, motor hesitation or any other sign of human error or hanger rash
Remove all risk - if you fly over a crowd of people the risk is falling - so don't fly over crowds or people or the ocean - Wear safety glasses - props can cut
Program and test GPS return to home - Wookm has no collision avoidance - be sure to set 50% throttle immediately it start to RTH - be 100% familiar with GPS over ride procedures and fly on MANUAL if req'd
Never assume - problems come in groups - its never just one thing, if you find a problem - look again. Make sure for Hexii that you understand IOC engine failure procedures
Use loctite - Make sure the entire airframe is 100% rigid and secure - vibration can loosen flight critical parts
Use a checklist and stick to it - all Pro-pilots use checklists - look for problems - Especially vibration - DO an IDLE vibration check before take off ! on every flight !
Make 100% sure you ALWAYS see the LED signals - this is vital for "White Sparking" observations - if you ignore White sparking warnings via the LED - you will suffer consequences
Calibrate all sensors - often. The GPS pod also contains a delicate MAG Compass - calibrate it in away from metal - all metal - including cars and houses.
Weigh your Aircraft - use different GAINS for different weights - carry a scale - check the weight.
Carry spare parts - that way if you have a problem - and are under the hammer to get the flight done - you can safely install the spare part first in minutes - then fly.
As the pilot in command EVERYTHING is your fault - if anything goes wrong - YOU as the Captain are responsible afterward. Posting up your sad story on a forum wont change anything "after" a crash.
The recommended weight is directly linked to performance and stability - Low weight Carbon fibre is best - do not over-build for un-necessary strength; do not make it heavy. If you cannot afford carbon then use our lightweight 12mm booms made from very thin aluminium.The small round (circular) cross section arms; Low pitch propellers (8x4.5, 9x5triples, 10x4.5, 12x4.5); light weight outrunner brushless engines with a low kva (kva varies with size of props ie on 3S 12v LiPo a 1220kva motor the 0845 is good and 775kva the 9050 triplesfor 4S) and a high "C" rating LiPo of a modest size (heavy LiPo cell do NOT give a longer flight time); You want a large amount of slow moving downwash and NOT a small amount of high speed downwash for STABILITY. Do not make the arms too long(flex) or too short unless very light weight (stability).
If you prefer to Goo-search the internet (goo-search is our word for so-called internet research) and see what others are doing there is a lot of recommended reading and examples below: - Please remember on Google you will find many examples that are badly designed and a small number which are well designed - a well designed SCARAB multicopter can fly for 12-15mins. A video showing a 4-6 min flight; or less; means it's a VERY inefficient/design multicopter.
With PARIS CPU IMU the following diagrams offer the combinations and engine/software numbers for each prop and direction of rotation (below)
A note for multicopter beginners
The rapid development of Multicopter has come from community open sorce collaboration. You stronly recommend you read and contribute posts on the MultiWiiCopter RCGroups Forum thread for PARIS and SCARAB - It is possible to get involved in multiWiicopter construction without a background in RC, aviation or electronics, however you'll find a reasonably steep learning curve. You will need to develop an understanding (but not necessarily mastery) of subjects including temperature controlled soldering, speed controllers ESC's, lithium batteries LiPo (i.e. safely charging), radio control, low-voltage DC electrics, propeller balancing and more. Communities such as the RC Groups forums will help beginners find their feet, but please read the various getting started guides, threads and FAQs before you post a question that has been asked and carefully answered before.