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Swap out wheels to wasteland wheels #470

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merged 4 commits into from
Jun 19, 2024

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Achllle
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@Achllle Achllle commented Apr 7, 2024

It's a fairly big increase in price but they are simpler to attach, require one less seller, and are much bigger (=faster).

Two other options are specified as alternatives.

  • update the build instructions to match new wheels

@Achllle Achllle added enhancement New feature or request Mechanical Improvement Makes an improvement on a mechanical property of the robot labels Apr 7, 2024
@Achllle Achllle self-assigned this Apr 7, 2024
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Achllle commented Apr 11, 2024

decision is to switch to smaller Gobilda wasteland wheels as the default

@murphcj
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murphcj commented Jun 19, 2024

I just drilled the holes in the old wheels and there is really no good surface to locate a hole to center the mount pattern with respect to the axis.

If I had a milling machine I could mill a flat or drop a 4mm end mill through, but I don't. Now my wheels wobble since they aren't centered well.

Bottom line: if I had seen these wheels up front and known the holes are pre-drilled I would have bought the wasteland ones even though they are more expensive.

@Achllle
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Achllle commented Jun 19, 2024

@murphcj you're right, apologies for letting this sit here for that long. We were debating between the smaller and larger wasteland wheels. I updated the PR to include the smaller wasteland wheels by default and will merge those in now.

@Achllle Achllle merged commit 72edc6e into nasa-jpl:master Jun 19, 2024
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@Achllle Achllle deleted the wasteland_wheels branch June 19, 2024 02:09
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Achllle commented Jun 19, 2024

Regarding the centering: I remember a community member had made a 3D printable jig in the past to allow for easy drilling. It should be possible to just re-drill holes so they're centered better.

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murphcj commented Jun 19, 2024

No problem. Really convenient that these wheels are out now. I made a nice little jig out of one of the extra couplings that seemed to get decent results. I had nearly as good luck eyeballing the holes to be honest.

I realize it's already decided, but another vote in favor is that the seating surface for the heads of the screws in the outside isn't good.

I think this is a good decision!

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Achllle commented Jun 20, 2024

The only thing that's left is updating the documentation because that's still pointing to the drilling instructions for the old wheels. Let me know if you'd like to take a stab at creating (simpler) instructions for the newer wheels, otherwise I will get to this over the next few weeks

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murphcj commented Jun 22, 2024

I'll give it a try. Could be a good intro to git for me.

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2 participants