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OpenRC - 2WD micro crawler

by JonasF, published

OpenRC - 2WD micro crawler by JonasF Aug 6, 2016

Contents

Design Tools

FreeCAD

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Thing Statistics

9168Views 1124Downloads Found in R/C Vehicles

Summary

OpenRC 2WD Micro Crawlers

  • Length : 72mm (without body)
  • Width : 47mm
  • Weight : 34g (without body and without lipo)

3Dprint parts list :

Central chassis

  • 1x Chassis.stl
  • 1x Couvercle Chassis.stl

Rear deck

  • 1x Pont AR GA.stl
  • 1x Pont AR DR.stl
  • 1x Pignon moteur.stl
  • 1x Pignon roues.stl

Font deck

  • 1x Pont AV.stl
  • 1x Support triangle AV.stl

Rear suspension

  • 1x Triangle AR bas.stl
  • 2x Trangle AR sup 2x.stl

Font left suspension

  • 1x Triangle AV BAS GA.stl
  • 1x Triangle AV HAUT GA.stl
  • 1x Fusee GA.stl
  • 1x Support Fusee GA.stl

Font right suspension

  • 1x mirror of Triangle AV BAS GA.stl
  • 1x mirror of Triangle AV HAUT GA.stl
  • 1x mirror of Fusee GA.stl
  • 1x mirror of Support Fusee GA.stl

Direction

  • 1x Direction servo.stl
  • 1x Direction fusee GA.stl
  • 1x mirror of Direction fusee GA.stl

Wheels

  • 4x pneu 4x.stl in flexible filament like nijaflex
  • 2x roue AR 2x.stl
  • 2x roue AV 2x.stl

Other parts :

  • 1x ESC and receiver examples : https://gitlab.com/openBLERCremote/redbearblenano_receiver_with_brushed_esc_arduino_ide. Updated September 27, 2016: I ordered a esp-32 and a motor driver TB6612FNG, I think current November 2016 I propose a less expensive and easier to manufacture ESC.
  • 1x gearbox motor N20 DC3V 1000RPM
  • 1x ultra micro servo (HK-5330)
  • 2x screw M2x8 (font wheels axis)
  • 6x ball bearing 2x5x2.5
  • 1x screws kit for Losi micro-T (ref LOSB1524)
  • 1x lipo 1S 260mA (size ~35x21x8.5)
  • 39mm silver steel ground rod round shaft 2mm (rear wheel axis)
  • 6x sewing pins (suspension axis and steering arm
  • Steel spring for font and read springs ("Fiber" of a brake cable, floppy spring)

Print Settings

Printer Brand:

RepRap

Printer:

Prusa i3


Notes:

All parts have been printed with a 0.4mm nozzle except engrennage (nozzle 0.25).

All parts were located Print PLA except tires which were printed in ninjaflex

The tiny parts and tires were printed in full, others with a filling 25%

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Any videos of it you could put up?

Oh ! I just saw that I did not send the source file (freecad) is now done.

Version of freecad used: 0.16

Just out of curiosity, how come some of the parts are not orientated so that they lay flat on the build plate? Is this for any structural reason or is it just how they are orientated once the cars built?

The stl files are output from freecad without post-processing.

I turn the parts on the g-code generator (very simple on cura).

Note : the majority (perhaps all) of the parts can be printed without support

That's what I figured. I rotated some of the parts when I created my gcode. Hopefully, I can find time to print it tonight. Nice work, btw.

Could you re upload Triangle_AV_HAUT_GA? The file is in G-code, I would really appreciate a stl file. Thanks!

Oups !
It's fixed.

Comments deleted.

Hi all

I juste ordered a esp-32 and a motor driver TB6612FNG, I think current November 2016 I propose a less expensive (~10-15$) and easier to manufacture ESC

I did not receive the esp-32 but the project is not dead ;).

I did not receive the esp-32 but the project is not dead ;).

I did not receive the esp-32 but the project is not dead ;).

What is the body file?

It's Hilux by 3rdaxis http://www.thingiverse.com/thing:1372741 set to scale and "thickened".
I have not uploaded the STL because I'm do not know use the modeling tools like Blender, and my model has very many problem.

Toyota Hilux body
by 3rdaxis

This is extremely cool. Will be following closely!

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