Removing material in a constant spiral on a variable roller diameter

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1

Hello

I am looking for the solution to do a spiral machining on a barrel-shaped roller that would fit the constant radius of my wheel.

Basically, the pebble will be the driving force.

The roller has x radius according to its defined profile.

I work with an omnidirectional roller principle to correct defects.

Tomorrow I will submit a simplified approach with a repetition of material removal but not in a spiral, the risk is to create a scarifier that cuts my part to be rotated.

Thank you for your help.

Spectrum.

2

a similar roller to be modified to make grip tests and avoid slipping.


galet.jpg
3

Hello @spectrum 

Something like that?


spiralsurgalet.png
4

Hello, That's perfect! I'm thinking about your approach, either you have several propellers in relation to a diameter.... But how do you make the different propellers coincide on a single propeller path in the end. On the forum I found this approach with this example file.

I'm going to work on it this morning, I'll submit my progress.

Kind regards.

Spectrum


spirale_lucas_martin1.sldprt
5

Here's my approach this morning, thank you for your help and your model.

3D sketch on surface, with waypoints punctuated by successive planes that reproduce a constant step.

I have the freedom to have a multitude of variable shapes increasing or not, more complete than a propeller assisted function.

Spectrum


essai_par_matiere_par_balayage_en_surfacique_ok.jpg
6

Hello

Another possibility is to create a helix coiled on the toric surface of the roller, followed by a removal of material by scanning...
The part is attached in SW 2019 version.

Kind regards.


removalhelicetoroidale.sldprt
5 Likes
7

Hello M.blt,

Thank you very much, I didn't know about this use of a coiled propeller, I was limited by the support sketch, i.e. a circle with the only possibility of adding a taper... Have a nice day.

Spectrum.

 


robot_boule.jpg
1 Like
8

Nice trick that this technique to generate the helicoid on any shape.