[Hardware] Modify robot base 3D model to prevent drilling

[jballoffet]

Summary

This tasks involves modifying the standard Arduino Smart Car 3D design in order to include the required holes and avoid having to drill them after printing.

Definition of done

• Develop modified 3D model.

[JesusSilvaUtrera]

Since I am building my own Andino, I have made a design using Canva of what should be the changes to the chassis (upper chassis and lower chassis will be separate models):

Upper chassis:

Lower chassis:

JIC anyone find it useful to change the 3D model (I am not too familiar with 3D design and I also don't have a license for programs like Fusion).

[francocipollone]

Thanks @JesusSilvaUtrera , this is useful 🚀
I think that @lneumarkt has some experience 👀

[francocipollone]

I think that if we do an OR between both chassis drillings and we keep maintaining only one chassis it is better for assembly procedure perspective

[JesusSilvaUtrera]

Sure, it is true that it simplifies having only one model for the chassis.

[lneumarkt]

Thanks @JesusSilvaUtrera !
I agree that it would be best to have only one model.
I will tackle this and create a single model with both suggestions.

[francocipollone]

Friendly ping here @lneumarkt 😇

[lneumarkt]

Hey guys, sorry for the delay.

Here is the new design with both chassis merged. WDYT?

All holes should fit M3 screws.

I printed out this new version and will test it this week to see if it needs any tweaking.

The STL can be found here.
I will create a PR adding the final version after testing is completed.

[JesusSilvaUtrera]

LGTM at first sight (probably it will need some tweaking because of the measurements precision), just one comment, it might be better to make the Raspberry holes smaller to fit M2 screws instead of M3, because those are the only ones that can be used with it.

Thanks for your work @lneumarkt!

[lneumarkt]

Here is a new version of the design. I printed it and tested all the holes with the real components to verify everything fits correctly.

The STL can be found here.

[francocipollone]

I printed it and tested all the holes with the real components to verify everything fits correctly.

Awesome! Have you used any andino to test it?

If so, create a PR please with this contribution 🚀 !

[lneumarkt]

I didn't test it on a complete Andino, but placed the components on the new chassis. I can build one next week to test it and create a PR then.

[francocipollone]

I didn't test it on a complete Andino, but placed the components on the new chassis. I can build one next week to test it and create a PR then.

Nice it would be great to have real testing on it. Do you have the parts?

CCeing @jballoffet @JesusSilvaUtrera

[mwalkeriii]

It might be helpful to have a Fusion or STEP file model for the robot. This would help in the community making modifications as needed as well as creating illustrations for training material (as I am finding out now). Let me know if this would help and I can add.

[francocipollone]

It might be helpful to have a Fusion or STEP file model for the robot. This would help in the community making modifications as needed as well as creating illustrations for training material (as I am finding out now). Let me know if this would help and I can add.

That would be useful indeed. Do you have the step file @lneumarkt ? If it is not too heavy we can add it to the repo.