RC Airplane Motor Mounts by bikerhiker7

Last crawled date: 3 years, 5 months ago

Customizable and Canned RC Motor Mounts
Customizable stick motor mounts with configurable thrust angles and
an adjustable rectangular motor mount.
Canned motor mounts for an E-Flite Valiant and a Hobby Lobby 3D profile
foamie plane. There is no top level customization for these mounts,
however the corresponding motor mount .scad files do have customizable
parameters and can be run standalone.
Motor Mount Descriptions and Notes
Customizable stick mounts
X (4-arm) and Y (3-arm) mount options
Up/down and right/left thrust angles can be specified
By default, the X-style stick motor mount fits a Turnigy 2730 1300kv
Brushless Motor, "can" diameter ~27.5mm.
By default, the mount tube interior dimensions are 1/4" (6.35mm)
square - fits a 1/4" square dowel
The default thrust angle settings are: mm_pusher = true,
mm_thrust_angle_up = 5.7 (degrees), mm_thrust_angle_right = 1.0
(degrees)

Adjustable rectangular motor mount
The adjustable motor mount is a rectangular mount with rabbet joints
on the edges and with holes at the corners for screws that attach to
corner blocks, which are attached to the plane's fuselage. This motor
mount can also be glued directly to a rectangular fuselage if the
thrust angle does not need to be adjusted.
By default, the corner block hole size is 4.26mm (#8 screw diameter +
0.2mm for clearance)
Note long corner block rendering time for if adj_mm_threaded_hole is
set to true (default)

Canned motor mount for a HobbyLobby 3D profile foamie airplane
Dimensioned for an unknown motor type turning a GF 8x4 prop
May be used as a basis for modeling a motor mount for other 3D
profile foamie airplanes by adjusting the various customizable motor
mount parameters

Canned E-Flite Valiant motor mount adapter for a DYS D2836 BLDC motor
Note viewport changes very slow in preview mode (F5). Render (F6)
works around this issue.

Customizer Notes
The Thingiverse customizer does not work with the included thing SCAD
files because the top level customizable-rc-motor-mount.scad includes the
other thing files. The Thingiverse customizer does not support includes.
To customize, download all of the thing .scad files into a folder, then
open customizable-rc-motor-mount.scad with OpenSCAD. OpenSCAD is
downloadable from openscad.org.
General Notes
Includes the threads.scad library, Copyright 2020 Dan Kirshner -
dan_kirshner@yahoo.com, for generating interior threads for the
adjustable motor mount corner block. threads.scad is licensed under
GPLv3.