OWLplane Delta Hornet OWL Installation guide

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Rev. 1.0

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Pre-Assembly Processes
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Table of Content
Pre-Assembly Processes...............................................................................................3
Tools Used for Cleaning and Clearing Tolerance
Cleaning and Clearing Tolerance
Finding and Checking Pin Position
Fuselage And Wing Assembly .....................................................................................8
Preparing Required Hardware (Fiber Carbon Pin/3D Printed Plastic Pin and Fiber Carbon Spar)
Guide and/or Alignment Tools or Mechanism for Fuselage and Wing
Gluing Two Parts
Wing And Fuselage Pin...............................................................................................10
3D Printed Plastic Pin
Screw, Nut and Washer
Stabilizer And Control Surface Assembly ...............................................................12
Preparing Pin and Rods
Guide and Alignment Tools and Mechanism
Gluing Two Parts
Canopy And Hatch Assembly ....................................................................................16
Parts, Spring and Pin
Inserting Spring and Latch
Gluing Printed Parts
Gears And Wheels Assembly .....................................................................................18
Preparing Gears and Wheels
Assembling Gears and Wheels
Placing and Locking The Battery..............................................................................20
Using Velcro Hooks and Loops
Plastic Holder for Double-Sided Hook and Loop
Servo Assembly ...........................................................................................................22
Preparing Pushrod and Parts
Installing and Assembling Servo and Push Rod using Servo Cover
Installing and Assembling Servo and Push Rod using Servo Bridge
EDF And Motor Mounting..........................................................................................26
Installing Outrunner Motor
Installing EDF Motor

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Pre-Assembly Processes
There are some pre-processes that need to go through before assembling commenced. Once completed, the
assembling processes should go without any tolerance and clearance issues. Here are the processes:
1. Cleaning and clearing tolerance processes.
2. Making sure/checking the parts just t in. Use the following tools:
2.1. Fiber carbon and/or 3D printed pins.
2.2. Built in pins.
2.3. Rod as hinge part mechanism.
2.4. Push rod.
2.5. Fiber carbon wing spar.
Tools Used for Cleaning and Clearing Tolerance
The gures below are tools that you may need to run pre-assembly processes but not limited to.
Cleaning and Clearing Tolerance
The gures above explains themselves how to use the tools except the heated rod. The heated rod is used whenever
can not use drill for not reachable position such as cleaning or clearing holes for pushrod. Just push the heated rod
quickly until it gets out of the hole so that it clears unwanted plastics inside the hole.

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Pre-Assembly Processes
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Checking Tolerance (Making Sure it ts)
Once you have done cleaning and clearing tolerance processes, need to make sure that now it ts each other when assembling.
15mm and 30mm Pins Clearance
▷Have two options, either utilizing ber carbon or 3D printed one.
▷The gures below show where ber carbon tube (color in black) or printed pins (color in blue) are located.
▷There are two size of pins, the one with 15mm and 30mm long depending on how deep is the hole.
▷Reprocess cleaning and clearing if found that there is signicant resistances.
Checking Built In Pin Clearance
▷Checking the built in pin t into its pair by following the provided animation video.
▷By pressing the two parts, check if there is no signicant gap or it ts in its position correctly.

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Checking Rod Clearance for Attaching CS (Control Surface) Parts
▷Using rod to check that there is no resistance
when inserting the pin.
▷Try to push and pull the rod checking if there is
signicant resistances.
▷Reprocess cleaning and clearing shown on the
right side if found signicant resistances.
Checking Clearance for Push Rod
▷Just insert the push rod into its position.
▷Make sure that there is no resistances.
▷Reprocess cleaning and clearing shown on the
right side if found signicant resistances.
Checking Clearance for Wing Spar
▷Just insert the push rod into its place.
▷Make sure that there is no resistances.
▷Reprocess cleaning and clearing shown on the
right side if found signicant resistances.

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Pre-Assembly Processes
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Finding and Checking Pin Position
The objective of using pins is to make the assembly processes run smoothly (t in correctly). The process of nding
and checking pin position is to make sure that the pins are well installed/used.
Finding Through Sliced STL Object
▷The two gures below show how to nd the pin locations by utilizing the Slicer.
▷Take note and ,next ,try to nd them in the printed parts.
Locating The Pins Directly
▷Try to nd the pin location on the printed part before gluing.
▷Also try to insert the pin to make sure it ts nicely.
▷Reprocess cleaning and clearing shown below if found signicant resistances.

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Fuselage And Wing Assembly
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Fuselage And Wing Assembly
All fuselages and wings are designed to be ready with the usage of guide or alignment tools.
Please nd details below explaining about guide or alignment mechanism utilizing built in pin, ber carbon tube
pin/3D printed plastic pin, ber carbon spar and push rod.
Preparing Required Hardware (Fiber Carbon Pin/3D Printed Plastic
Pin and Fiber Carbon Spar)
▷The ber carbon tube pin can be
replaced with 3D printed one.
▷There are two types of pins for ber
carbon and 3D printed one: 15mm and
30mm long.
▷The rod is used as push rod connecting
control surface horn with servo arm.
▷Fiber carbon tube shown on the right
side gure is used as wing spar (not all
Models require it).

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Guide and/or Alignment Tools or Mechanism for Fuselage and Wing
Tools used for fuselage and wing guide and/or alignment are depicted in the gures below:
Gluing Two Parts
▷Use thick CA for bonding two parts so that it will also ll
the gaps.
▷Press rmly so that there is no gap between joining
surfaces.
▷Use CA accelerator right after joining (for faster cure
time).
▷Good practice if you coat the joining surface area with
thin CA so that it will add more bonding strength. It will
minimize risk breaking on that area due to weak
bonding.

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Wing And Fuselage Pin
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Wing And Fuselage Pin
To attach wings into the fuselage, OWLplane Models use either screw/nut or 3D printed pin. Please nd below details
their usage.
3D Printed Plastic Pin
▷The 3D printed plastic pin is inserted into two holes from the fuselage and wing.
▷Once inserted and to lock the pin position, it uses 1mm OD metal wire or similar one.
Screw, Nut and Washer
▷Some Model Planes such as Delta Hornet OWL and
VJet OWL, they use simply screws and nuts (with
optional washers).
▷Either nylon or metal screw and nut can be used.

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Stabilizer And Control Surface Assembly
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Stabilizer And Control Surface Assembly
All stabilizers and control surfaces are designed to use guide or alignment tools.
Please nd detail below explaining about pin and rod as guide and/or alignment.
Preparing Pin and Rods
You may need to prepare different size rod ranging from 1.0 mm to 2.0mm OD. Mostly it will t into with 1.5mm rod
size but in some cases (usually when using higher hotend temperature, it only ts with 1.0mm rod).
For metal pin, use metal rod with OD size ranging from 2.0mm to 2.5mm. Some cases for small control surfaces may
need 1.5mm OD.

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Guide and Alignment Tools and
Mechanism
Try to understand the relationship among parts by
watching provided animation and assembly videos. Once
you understood the relationship, the next step is to try
identifying the pin locations.
Identify Pin Location
▷The two gures on the right side show how to
nd the pin locations by utilizing the Slicer.
▷Take note and next, try to nd in the 3D printed
part.
Control Surface Pin and Rod
▷Control surface parts also use pins like stabilizer
parts above.
▷Whenever possible use hinge rod as guide and/or
alignment when assembling parts.
Stabilizer Pins
▷The left side gure shows two pins are used as
guide and alignment.
▷The rod pin long is about 5-6mm each side but
just cut what you feel the best size.

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Stabilizer And Control Surface Assembly
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Gluing Two Parts
▷Use thick CA for bonding two parts.
▷Press rmly so that there is no gap between joining surface.
▷Use CA accelerator right after joining (faster cure time).
▷Good practice if you coat the joining surface area with thin CA so that it will add more bonding strength.

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Canopy And Hatch Assembly
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Canopy And Hatch Assembly
Both canopy and hatch utilize latch mechanism. You need a spring to keep the latch in lock position. Ballpoint pen
spring is perfect to use.
Parts, Spring and Pin
▷You can get the spring by purchasing ballpoint pen from your local bookstore.
▷Make sure that you have printed all parts required shown in OWLplane Model animation and assembly
videos.

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Inserting Spring and Latch
▷Make sure you have done the clearance
processes.
▷Make sure the spring does t into its position.
▷Try to play the latch back and forth to test.
Gluing 3D Printed Parts
▷When gluing the latch part, allow some glue free
areas surrounding the latch.
▷Right after gluing, make sure that you still can
play the latch.
▷Wait until it rmly binds the parts before
continue the assembly processes.

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Gears And Wheels Assembly
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Gears And Wheels Assembly
Like fuselage and wings, gears also use pins as guide and/or alignment. Please start with assembling gears followed
by assembling wheels.
Preparing Gears and Wheels
▷To cut the required shaft, you may use dremel tool/rotary saw (or similar tool).
▷Landing gear wheel stop set collar is required to put at one end of the shaft and lock it at that position.
▷It can be used only for one side and the other side is formed like an "L" shape to stop the wheel out of the
shaft or on both sides.

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Assembling Gears and Wheels
▷Below gures show the usage of shaft and wheel stop collar for assembling landing gears.
▷The shaft diameter depends on how big is the wheel and also the total weight of the plane (just follow
information in the specic OWLplane Model web page under PRODUCTS tab for the specication).

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Placing and Locking The Battery
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Placing and Locking The Battery
Once you have found the position for the battery where CG (Center of Gravity) can be correctly achieved, install the
Velcro to that position by using Velcro sticker/Polyester hook and loop peel-n-stick self-adhesive. Your battery also
needs to have Velcro sticker attached. The Velcro attached to plane and battery should not be the same type of
Hook/Loop. Just consistent with your choice, for example, all Hooks for the battery and all Loops for the plane or on
the other way around.
Using Velcro Hooks and Loops
▷The Velcro is used like shown on the right side
gures where the plane uses Loops and the
battery uses Hooks.
▷Polyester hook and loop peel-n-stick self-
adhesive are shown on the right two bottom side
gures.
Plastic Holder for Double-Sided
Hook and Loop
▷Only implementing Velcro type shown above, it
should be ne already.
▷It is optional if you would like to add double-sided
hooks and loops to lock the battery position with
one pair of provided plastic holders shown on the
left side gure.
▷Just use CA glue to install the holders for double-
sided hooks and loops.