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goscommons / Tractor

Documentation of open source tractor designs, and models based on expired patents
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Wheel rim support added #10

Closed vinaybhajantri closed 6 years ago

vinaybhajantri commented 6 years ago

Using Michellin tyre data, we can use following reference later to modify the CAD according to selected tyre specs- Michelin tyre spec data

Upcoming parts (staged):

  1. Rim
  2. Tyre
  3. Tyre assembly
vinaybhajantri commented 6 years ago

Added rim CAD for the front wheel. Upcoming parts (staged):

  1. Tyre
  2. Tyre assembly
JannesHN commented 6 years ago

Looks good! You're getting the hang of FreeCAD now. The holes in the support disc and the mounting holes in the rim do not allign, but that's because they still need be modified to the tyre specs anyway, right?

JannesHN commented 6 years ago

also, I don't think that FreeCAD supports something like equal spacing in an offset right now. I've tried several things, but it has to be done the uneasy way.

polemidis commented 6 years ago

can you show me what you mean guys? I dont understand it. Maybe I can do it

On Mon, Jun 25, 2018 at 8:46 AM JannesHN notifications@github.com wrote:

also, I don't think that FreeCAD supports something like equal spacing in an offset right now. I've tried several things, but it has to be done the uneasy way.

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JannesHN commented 6 years ago

offset Vinay sketched this profile for the support disc of the rims, probably by sketching one set of lines (left) and copying it (to the right). Then to create the offset he had to add all these 3.5 mm distance constraints between points and lines.

We wonder if there isn't a way to copy one of these sets of lines and set the distance (3.5 mm) once and make the program automatically space the two sets of lines at 3,5 mm from eachother everywhere. If we ever want to make more complex shapes or change this distance a couple of times, such a feature would save a lot of time.