3D AEROWORKS PR1 Guide

ASSEMBLY MANUAL
AND USER GUIDE
Pond Racer
PR1
By 3D AEROWORKS

OVERVIEW:
This scale replica of Burt Ruhtan’s Pond Racer is designed for quick and easy construction
and printed using light weight PLA (LW-PLA). For best results the canopy should be printed
with clear PLA. Semi scale propellers are included in the plans designed to suit the 2804
2300kv outrunner (6.75x5 blade) in 2 blade configuration. Utilising full 4 channel controls;
aileron, elevator, rudder and throttle, this model performs extremely well given its small size
and lightweight. Links to components used can be found on the last page of the user guide.
This model has taken many hours of hard work and testing in order to provide a nice flying
aircraft. Please do not share it. Please show your appreciation by directing interested parties
to the link below.
https://cults3d.com/en/3d-model/various/pond-racer-700mm
GENERAL SPECIFICATIONS
WINGSPAN: 700mm
PRINT TIME: 78 hrs
PRINT WEIGHT: 200g
FLYING WEIGHT: 498g
CENTER OF GRAVITY 10mm aft of L.E at wing root. (Marked with indentation)
ELECTRICS
MOTOR: 2205 2300KV (1 CW and 1 CCW) (or similar motor)
ESC: 12amp (min) 20amp (recommended)
SERVOS: 3.7g MICRO
BATTERY: 950MAH 2S (45gram or similar)
INCLUDED:
STL FILES OF ALL COMPONENTS (scale to 1000% if not using S3D)
FACTORY FILES FOR (S3D) SIMPLIFY 3D FOR PRINTERS: 200X200X200

REQUIRED TOOLS:
KNIFE
LIGHTER
SANDPAPER (MEDIUM GRIT)
PLIERS
CA GLUE
SCREW DRIVERS
FILE OR RASP
REQUIRED COMPONENTS:
X2 2205 2300KV MOTOR (or similar)
X2 12AMP or 20AMP ESC
X2 950MAH 2S LIPO OR SIMILAR
X4 3.7G MICRO SERVO
BAMBOO SKEWERS 3MM
HEAT SHRINK TUBE 3mm
X6 10mm X 10mm X 2mm MAGNET (ROUND)
X10 MICRO HINGES (OPTIONAL)
VELCRO
X2 x 500mm CARBON STRIP 3mm x 0.6mm (OPTIONAL)
M2 x10mm SCREWS
1mm PIANO WIRE

ASSEMBLY INSTRUCTIONS
1
After all parts have been printed, some may require to be cleaned/trimmed as LW-PLA is
prone to stringing. Do this by gently sanding back the rough sections with a file, sandpaper or
blade until the surface is smooth.
2
All faces which are to be glued to other parts need to be given a light sanding (scuff the
surface) to assist with glue adhesion.
3
Cut 15mm sections of skewer and place into alignment holes in the fuselage sections.
NOTE - It may be required to open up the holes a small amount if the fit is too tight. Do this
by using a 3mm drill bit. Gently spin it in reverse as you insert it into the hole. This will ensure
the bit does not tear the print.
Test fit the sections of the fuse before gluing to ensure a clean fit.

4
Glue all sections of the center fuse and together except fuse 4. This will be glued on after the
elevators have been installed.
5
Once glued, with a sharp knife, remove the false floor of the battery hatch. (see pic/ red
faces) NOTE: The removed sections of LW-PLA that is the false floor will be used as hinge
pieces later. Do not throw away.
6
Glue all sections of the fuse pods together except fuse pod 1. This will be glued on after the
CG has been achieved. 6
7
From parts “center fuse 1, fuse pod 3” remove the inner section of the lead tunnel with a
knife or heated metal rod to allow the servo lead for the aileron to pass through. (marked red)
Center fuse 1 fuse pod 3 left side
Fuse pod 3 right side

8
Cut a 250mm length of carbon strip and gently test fit the “wing outer” section to “fuse pod 3”.
(slot for carbon strip highlighted below)
NOTE - There are internal slots in fuse pod 3 for the carbon strip. Take care not to break
them as the strip is fed through the fuse section.
Now feed the protruding end of the carbon strip into the “center wing section”
Once happy with the fitment, the wing and fuse pod section can be glued in place.
9
● Glue the fuse pod/outer wing assembly to the center wing.
● Cut two 120mm sections of carbon strip and test fit the center wing sections together.
● Glue the center wing,fuse pod and outer wing assembly together with the center fuse
sandwiched in the middle using the alignment holes provided.
Before after
10
Glue the horizontal stabilisers in place, the indent in the trailing edge is face inwards.

11
Assemble each control surface and test fit the hinges in the hinge slots for each control
surface and its parent part, this will make gluing the control surface easier when the time
comes. NOTE- Do not force the hinge if it is too tight. Loosen the slot by gently inserting a
stanley knife.
Using the LW-PLA as a hinge:
From the off-cuts from the fuselage false floor, cut small sections of 15mm x 7mm with the
7mm side being against the grain of the layers. Test fit the pieces into the hinge slots of the
control surface and stabiliser or wing.
12
Place a drop of CA in the hinge slot of the control surface and insert the hinge. Be sure that
the hinge is perpendicular to the control surface. Then bend the hinges to 90deg back and
forward a few times to make sure they are appropriately loose. (the outer aileron and
elevator hinge may need to be trimmed). See below

13
Bend a section of 1mm steel wire to connect the elevators together.
Test fit the wire and the elevators connection to the horizontal stabilisers before gluing the
wire to the elevators, or the elevators to the tail plane. There should be un-obstructed travel.
Once satisfied, glue the elevators in place.