Thingiverse
OpenScad Rack & Pinion generator by racatack
by Thingiverse
Last crawled date: 3 years ago
Updated 7-13-16 - Added an enhanced version (v1.1 of the .scad files) that has more capabilities for generating mounting flanges, and a few more instructions for getting started. If you don't need mounting flanges or instructions, the first version works fine and has fewer variables to deal with.
Mounting distance between rack and pinion:
When installed in a mechanism the ideal mounting distance between the bottom surface of a rack and the center of a pinion can be determined by:
"mount_distance = height + inner_radius" where 'height' is user specified in the program parameters (as distance from bottom of the rack to the tips of the teeth) and 'inner radius' = [mm_per_tooth*(number_of_teeth-2)/3.1415926/2]
For more info see descriptions in the .scad files for pitch radius, outer radius and root (or inner) radius.
This is a mod to thing:5505, Public Domain Involute Parameterized Gears by 3dexplorer. It incorporates changes suggested in the 11/11/15 comment by quisam2342 to fix noted problems in rack generation at various tooth sizes.
Also adds options to create a stiffening 'backboard' along one side of the rack and 'stop blocks' at one or both ends of the rack.
The example gear train given in thing:5505 has been tweaked to optimize for generation of a rack and pinion pair.
I added lots of comments to (hopefully) make the resulting .scad file readily usable by people not familiar with OpenScad. If you fall into that category, download and install OpenScad from http://www.openscad.org/downloads.html, then open this .scad file. Read through the code and comments, particularly near the bottom, in the section labeled 'example rack and pinion'.
Next, change a parameter value in the example variables and then press the button that looks like a dotted-line cube with fast-forward arrows- that will generate a preview and you'll be able to see the effect of whatever parameter you changed.
To export an stl, press F6 to render the gears (it may take a while) and when it's done, press STL in the upper tool bar, or select File/Export/STL in the drop down menus.
Note that by using (relatively) large negative numbers for the stop blocks and/or backboard heights, you can create flanges that might be useful for mounting the rack, as in a couple of the stl files included here. (These capabilities have been expanded on as separate features in v1.1)
Many thanks to 3dexplorer for the original work and to quisam2342 for his/her contribution.
Mounting distance between rack and pinion:
When installed in a mechanism the ideal mounting distance between the bottom surface of a rack and the center of a pinion can be determined by:
"mount_distance = height + inner_radius" where 'height' is user specified in the program parameters (as distance from bottom of the rack to the tips of the teeth) and 'inner radius' = [mm_per_tooth*(number_of_teeth-2)/3.1415926/2]
For more info see descriptions in the .scad files for pitch radius, outer radius and root (or inner) radius.
This is a mod to thing:5505, Public Domain Involute Parameterized Gears by 3dexplorer. It incorporates changes suggested in the 11/11/15 comment by quisam2342 to fix noted problems in rack generation at various tooth sizes.
Also adds options to create a stiffening 'backboard' along one side of the rack and 'stop blocks' at one or both ends of the rack.
The example gear train given in thing:5505 has been tweaked to optimize for generation of a rack and pinion pair.
I added lots of comments to (hopefully) make the resulting .scad file readily usable by people not familiar with OpenScad. If you fall into that category, download and install OpenScad from http://www.openscad.org/downloads.html, then open this .scad file. Read through the code and comments, particularly near the bottom, in the section labeled 'example rack and pinion'.
Next, change a parameter value in the example variables and then press the button that looks like a dotted-line cube with fast-forward arrows- that will generate a preview and you'll be able to see the effect of whatever parameter you changed.
To export an stl, press F6 to render the gears (it may take a while) and when it's done, press STL in the upper tool bar, or select File/Export/STL in the drop down menus.
Note that by using (relatively) large negative numbers for the stop blocks and/or backboard heights, you can create flanges that might be useful for mounting the rack, as in a couple of the stl files included here. (These capabilities have been expanded on as separate features in v1.1)
Many thanks to 3dexplorer for the original work and to quisam2342 for his/her contribution.
Similar models
thingiverse
free
Public Domain Involute Parameterized Gears by 3dexplorer
... of missing features. perhaps someone could build on this to create a public domain gear script with all the bells and whistles.
thingiverse
free
Rack and Pinion Gear Set Example by dreyfusduke
...ck and pinion gear set example by dreyfusduke
thingiverse
rack and pinion example
1.0 module
1:0.938 ratio
8.0mm center distance
thingiverse
free
Flanged Gear Bearing by robbycandra
...0mm outer diameter,
42mm flange diameter
1,5 mm flange on top and bottom.
you can change the dimension using included scad file.
thingiverse
free
parametric bearing mount by darealmoo
...ring
i am using them (the example-stl) with igus-lm10uu bearings with a 6.5mm z-offset at the y-axis (dimensions see .scad-file).
grabcad
free
Variable Rack and Pinion
...es different module
~variable rack and pinion has two different set of module incorporated in single rack and pinion for steering
thingiverse
free
Parametric Woven Lattice by TheAndyman
...he scad file parameters as uploaded.
a version with a flat bottom for easier part removal is also included (both stl and scad).
grabcad
free
Rack
... conjugate involute profile, there is a basic rack. this basic rack is the profile of the conjugate gear of infinite pitch radius
thingiverse
free
Public Domain Involute Parameterized Gears: Powered Up by TrinaryLogic
...hed, so you don't need to worry about any licensing problems if you redistribute it as part of a larger more complex project.
thingiverse
free
gear-v3.scad by mrob27
... a greatly improved adaptation of bjepson's gear.scad with all code included, round holes, and automatic parameter selection.
thingiverse
free
Satisfying Gears(Involute Gear Pair Generator) by Snaxxus
...l files from your design to use with other tools.
openscad-(fix puking previews by edit/preferences/advanced/forcegoldfeather).
Racatack
thingiverse
free
Corner Knuckle for Rigidbot by racatack
...n one flat side, so it can't be used for the rigidbot middle frame or spool rack mounts, but works great for a normal corner.
thingiverse
free
Christmas Tree Glasses by racatack
...original (if the files for the side pieces seem to be empty, they're really just opening in the wrong scale). - see comments
thingiverse
free
Trash Can Opener replacement part by racatack
...s great.
the pictures show the installed new part (in white nylon), the broken original part (black) and the type of trash can.
thingiverse
free
Front Panel Retainer for Rigidbot by racatack
...it's supposed to, but you'll probably need to do a little filing of the inside channels to make it fit flat & square.
thingiverse
free
Handle for 2 inch PVC ball valve by racatack
...epair piece has tabs intended to mesh with those notches. depending on how your handle broke you may need to tweak things to fit.
thingiverse
free
Rigidbot spool holder cap- fits 8mm rod or 1/2" pvc by racatack
...ndle. fits on top of the .75" square tube uprights of the the stock holder. (print two copies - one for each end of the rod)
thingiverse
free
Z Axis Endstop Adjuster for Rigidbot by racatack
...der (p/n 1008) so that the switch faces out instead of in (compare page 7 of rigidbot manual to the picture of the switch above.)
thingiverse
free
Adjustable angle mount for Rigidbot LCD panel by racatack
... and need to be cleaned up with about a 9/64" drill.
printing with the nut cavity facing the build plate worked best for me.
thingiverse
free
Neck fix for pool filter grids by racatack
...ffset was a little off in the first version, so a little filing (but not much) of the slots may be necessary. fixed in version 2.
Pinion
turbosquid
$3
Flowerpot Pinion
...d
royalty free 3d model flowerpot pinion for download as stl on turbosquid: 3d models for games, architecture, videos. (1692417)
turbosquid
$15
Conical pinion
...el conical pinion for download as ige, obj, fbx, dwg, and stl on turbosquid: 3d models for games, architecture, videos. (1302547)
3d_export
$5
Rack and pinion jack 3D Model
...rack and pinion jack 3d model
3dexport
rack and pinion jack
rack and pinion jack 3d model bkl1989 63077 3dexport
turbosquid
$6
Pinion Vanity Tray and Container Tearsheet
...y & container tearsheet for download as max, obj, and fbx on turbosquid: 3d models for games, architecture, videos. (1502149)
turbosquid
$20
Suspended ceiling rack and pinion 3D model Low-poly 3D model
...low-poly 3d model for download as 3ds, max, obj, fbx, and stl on turbosquid: 3d models for games, architecture, videos. (1452454)
3d_export
$19
Modern Rack And Pinion Corkscrew
...; x 1.67" x 8.02"<br>- model parts: 5<br>- material count: 1<br>- xform: yes<br>- boxtrick: yes
3d_export
$37
Gears 3D Model
...gears 3d model 3dexport gear cogwheel pinion mechanism spanner wrench gears 3d model ilyaden 8905...
3d_export
$24
Helical Gear 3D Model
...3dexport gear wheels teeth mechanics steel iron power mesh pinion transmission helical gear 3d model download .c4d .max .obj...
3d_export
$5
can crusher
...round plate. the pinion rotates freely on its own pinion the long and disorderly metal chips enter the machine...
3d_export
$5
Jaguar E-Type
...60 mph (97 km/h) acceleration, unitary construction, disc brakes, rack-and-pinion steering, and independent front and rear suspension distinguished the...
Openscad
thingiverse
free
OpenSCAD sphere
...openscad sphere
thingiverse
basic project for openscad.
thingiverse
free
Openscad Football by KySyth
...openscad football by kysyth
thingiverse
openscad not tested
thingiverse
free
Openscad Apple by KySyth
...openscad apple by kysyth
thingiverse
openscad apple = not tested
thingiverse
free
Plugs with openscad by benengel
...plugs with openscad by benengel
thingiverse
plugs with openscad and fontawesome
thingiverse
free
Openscad spirals by mafmuf
...openscad spirals by mafmuf
thingiverse
just fooling around with openscad.
thingiverse
free
Practice on OpenScad by ajensen906
...practice on openscad by ajensen906
thingiverse
a very crude practice on openscad
thingiverse
free
Batteries in OpenSCAD by roman_hegglin
...batteries in openscad by roman_hegglin
thingiverse
common batteries as modules for openscad.
thingiverse
free
OpenScad Propeller by KySyth
...se
trying to make a propeller with openscad = not tested
this is some of the results
added the openscad file but still need work
thingiverse
free
Openscad Cloud by Twanne
...openscad cloud by twanne
thingiverse
openscad cloud.
size can be adjusted
thingiverse
free
Geomag for OpenScad by vicnet
...geomag for openscad by vicnet
thingiverse
openscad file to design geomag things.
Rack
archibase_planet
free
Rack
...ack
archibase planet
rack paper rack rack for paper
rack 6 office n060914 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...ack
archibase planet
rack paper rack rack for paper
rack 3 office n060914 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...ack
archibase planet
rack paper rack rack for paper
rack 5 office n060914 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...ack
archibase planet
rack paper rack rack for paper
rack 7 office n060914 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...for magazines rack for notebooks notebooks notebook
rack notebook n120614 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...rack
archibase planet
rack umbrella umbrella rack
rack n180811 - 3d model (*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...rack
archibase planet
rack book rack stand
rack - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...rack
archibase planet
rack rack for glasses
rack 1 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
archibase_planet
free
Rack
...rack
archibase planet
rack rack for glasses
rack 2 - 3d model (*.gsm+*.3ds) for interior 3d visualization.
3d_export
free
rack
...rack
3dexport
rack
Generator
3d_export
$17
Generator
...generator
3dexport
generator
archibase_planet
free
Generator
...base planet
generator electric generator
generator electric n300715 - 3d model (*.gsm+*.3ds+*.max) for interior 3d visualization.
design_connected
$20
Generation
...generation
designconnected
knoll generation computer generated 3d model. designed by formway design.
3d_export
$8
generator
...generator
3dexport
generator - obj, 3ds, fbx.
3d_export
$7
generator
...generator
3dexport
generator extures 4k resolution, basecolor -normal -metallic -ao-roughness-height tris:3084
turbosquid
free
generator
...rator
turbosquid
free 3d model generator for download as max on turbosquid: 3d models for games, architecture, videos. (1492909)
3ddd
$1
general
...general
3ddd
генерал
turbosquid
$99
generator
...urbosquid
royalty free 3d model generator for download as ma on turbosquid: 3d models for games, architecture, videos. (1514125)
turbosquid
$20
Generator
...rbosquid
royalty free 3d model generator for download as max on turbosquid: 3d models for games, architecture, videos. (1244841)
turbosquid
$2
Generator
...rbosquid
royalty free 3d model generator for download as fbx on turbosquid: 3d models for games, architecture, videos. (1245541)