Page 1 one wire above, right side SCARAB Airframe The

SCARAB Airframe The following is the recommended building tips for assembling the airframe.

Quad SCARAB is designed for 10 amp ESCs x 4 - preferrably running 4S Motors are best between 35g - 75g Wires - 20AWG wires LiPo 150-180g Props 8x4 or 10x4.5 VERSION 1.0.4 SCARAB is designed to sacrifice the frangible booms in the event of a crash and save the motors,electronics and the mainframe from impact G forces. Thin rounded booms are very streamlined to prop wash and gives longer flight times of 12-15mins. We expect the removable boom to be used in most cases - for travel and for modular replacement reasons. good connections are vital. If a single connector fails or comes loose - your Quad will crash - double check each one BOOM LENGTH - Build light -> to fly - cut 345mm booms down to suit motors - small motors (30g) can be longer - Medium (50g) cut to 260mm - heavy motors(70g) 210mm ~ 230mm - it’s common sense - long booms with heavy weights will resonate - 260mm is a good average length choice. Booms can be cut with a dremel , a band saw or an aluminium blade on a carpenters power-drop saw. Balance props perfectly on a magnetic balancer. Mounting - medium/large Motors (55-80g) mount below the shaft to counteract gyroscopic forces - see sample at left. Carbon SCARAB booms/frames/engine mounts all have less flex and can be kept longer 275mm produces very good results for carbon. one wire above, right side

wiring - first decide if you want removable booms/ plugs. or if you want to solder the wires to the ESC? Solder wires cannot come loose - but can be less suitable for Travel-AP - so each pilot takes his own Risk. solder wires are more reliable - but all wires must be checked before flight. If you crash - never fly immediately. Inspect all wiring very carefully. Remove the 3.5mm connectors and solder the extension leads to the motors - these are the boom length plus 60mm. Use GOOD QUALITY FLUX to solder wires - see www.multiwiicopter.com/pages/gear-list

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THIN Cyno-acrylic glue (HobbyKing superglue) Composite structure - Bond the two parts of the engine mounts - use baking paper on the work surface - Parts comes pre-press fitted - using a thin-nozzle aplicator apply lines of thin Cyno on each of the 4 sides of each mount Thin Thin and allow to wick-in. Allow to dry CYNO CYNO fully - do NOT insert the mount while superglue is wet. Wait 24 hrs if you Thin Thin CYNO do not have accelerant spray. If using CYNO Accerant spray wait 10 mins to allow it Internal wires 20AWG Thinner wires fibres first. Internal wires 18AWG to soak fully into the Thicker wires 2x15mm button head bolt

#2x7/16th Servo Screw - as supplied

top

top

70°

70° 30°

30°

dry-fit the motor mounts - mark carefully drill a 2.0mm hole - at remove the holders - note the rim of the tube is cut the hole 7.5mm from the end of the a shallow angle of 30° to the main engine plate smooth inside to feed wires boom at a shallow angle of 30° Use 20AWG wire - average is 3-7 amps per engine in hover

use small drop of loctite on the M3 engine bolts - do NOT get loctite in bearing!! Small drop only

place wires along holder slowly feed the boom over the wires checking for fit

Do not pull the wires - note wires can be damaged inside the motor if pulled or cut Internal wires 20AWG Thinner wires #2x7/16th Servo Screw - as supplied

Internal wires 18AWG Thicker wires 2x15mm button head bolt

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top

70°

70° 30°

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SCARAB 100mm Quad Airframe guide

Screw must be cut to 7-8mm or it will penetrate into the lower right quadrant.

30°

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Solder the extra-long 2mm banana plugs - if a plug is either loose or tight it will create serious problemslater Tight plugs - ribs start to bulge on insert - then - debur at 45° the rim of the inside of the female connector. Loose plugs replace the female connector with a spare one. Use Red/black so if a Co-axial mount is used later - then each engine is identified in the same boom 6 wires - USE FLUX PASTE - for low resistance connections red booms for Rear - black for front then use LED for eiser orientation Make a power distribution lead - 5 wires (the fifth wire will be for LEDs/ BEC supply)

use a piece of heat shrink to hold the wires - then solder so it can fir inside the XT60

use a piece of heat shrink to hold the wires - then solder so it can fir inside the XT60

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slide some 5mm heatshrink onto the multi’s before you solder the posts - note that the temporary heat shrink is then removed - before sliding the final 5mm down

finished power lead - the LiPo will have the male connector - shown for clarity here

screw the lower mounts POSTS to the mid-deck floor - the holders only fit one way - DO NOT TIGHTEN yet - then lower the blue (or red) holders in place over the posts. Loose only.

SCARAB Frame tool 1.57mm HEX - 1/16th “ inch

dry fit all the upper screws - check all the posts are perfect before moving to the next steps - Later you will use Loctite® blue on all of the SCARAB frame screws. Replace post with spares if needed now.

NOTE : SS M2 button heads have small shoulders and can strip with a M1.5 hex - be sure to USE the 1.57mm L HEX provided in the kit - 1/16th “ inch version 1.0.5

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install the ESC using a ZIP-tie - then lower the blue (or red) holders in place over the posts. test install the landing gear (see pg8) if fitted (for Noobs the gear is best not installed intially - as it can be broken in an uncontrolled collision with terrain)

install the Deans connectors to each ESC - this is the Solder wires version

install the Deans connectors to each ESC - this is the removable wires version - Then install the top halves of the boom holders and the trigear (X- shown here - rotate 45 degrees for +) Confirm the engine rotation direction is correct - see below

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arrange the match top sections each one has a match half

install ing the top halves - this is the soldered wires version

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prepare the top deck - the GoPro dome Velcro and the standoffs

for a TOP-Deck electronics number the leads first - then fed the ESC wires thu the Scarabs wing.

install the PARIS mounting standoffs and the male velcro squares x 4 - then the female velcro to the GoPro dome in four places. Tighten the M2 screws - Use the SCARAB 1/16th FRAME tool(optional part) for best effect.

finished top deck electronics - the GoPro dome is removed/installed using Velcro

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QUAD X Gear - drill 2 x 2mm holes Through the carbon Gear and use the 10mmx2mm screws instead of the shorter 6mmx2mm screws Insert the Velcro battery strap NOTE the Rear gear is held by a single 3mm Button head screw - Do not use a second screw - in the event of a hard landing the gear can move

QUAD X Gear - one leg installed

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QUAD X Gear - two front legs installed

QUAD X Gear - all gear installed for X

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QUAD X Gear - all gear installed for X LiPo installed - use the extra Velcro to stop the LiPo move fore/aft (not shown)

BACK red

FRONT blue version 1.0.5

SCARAB 100mm Quad Airframe guide

orientation - we use RED for REAR - tail lights - and BLUE for front - LEDs are visible in daylight www.MultiCopterPilot.com

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1.57mm 1/16” tool only

PARIS v3.0 90° right angle headers Lower mezzanine PARIS board installation - using the 90° degree pins the PARIS is installed in the lower deck - deck height can be adjusted using nuts.

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#11 #9

#3







#10

5° MOTOR tilt - we designed the system to use motor tilt - in a Quad X the engine 3 & 9 are tilted 5° clockwise (viewed from the end of the boom looking inward) and engines 11 & 10 are rotated 5° CCW - this gives positive YAW control for Aerial photo Ops.



FRONT



11 & 10 are rotated 5° CCW viewed from each end

3 & 9 are tilted 5° clockwise viewed from each end

1.57mm 1/16” L tool ; or SCARAB frame TOOL NOTE : do NOT use 1.5mm metric heli tools !

NOTE : EURO or 4 DECK Scarab Assemble as per this photo using 90° header pins on your PARIS.

Top-deck electronics - we designed the system to use top or bottom decks - or even two decks only as shown here with a EURO - SCREWS - Screws are M2 1.5mm - however the M2 size is very small and easily stripped - therefor a 1.56mm imperial is better - (2 are supplied with your kits) DO not Overtighten the INNER screws - use a 1/16th tool to tighten the outer pairs so the booms will not twist. During the MAIDEN set the offset so the Copter hovers without YAWING. version 1.0.5

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