Backhoe Contribution – duerer – Wheels / Rear Axle

[Ingmar Franz]

This thread is dedicated to the wheels and the rear axle of the backhoe project.

[Ingmar Franz]

A reshaped part of the rear axle:

And with subsurf turned on:

[Ingmar Franz]

Current state of the gearbox:

The following part is really tricky since I get many 5-poles (file here):

Furthermore, the three holes aren’t really circular as they should allthough I’ve used the “Circle” tool in the “Loop Tools ” addon.

[Ingmar Franz]

And further detailing on this part:

[Ingmar Franz]

I’ve found some additional plans of the rear axle:

[Ingmar Franz]

This is the current state of my rear axle:

[Ingmar Franz]

So, this is the newest part on my rear axle:

And that’s how it’s attached to the rear axle:

Some minor adjustments are still needed to make it fit perfectly.

[Shawn Blanch]

When this happens for me I just add in a circle and size it to the same rough dimensions and manually swap it with the non-uniform circle.

[Ingmar Franz]

Some retopology done today:

[Ingmar Franz]

Rear axle and wheel hub finally connected:

[Ingmar Franz]

I have to do some retopology on the green attachment ring in the image above in order to avoid heavy distortions, but I’m ending up with six pentagons (green) and two areas with complicated topology (red):

Does anybody know a clever solution? File is here. I escpecially want to avoid 6-poles at all and 5-poles on sharp edges. 

PS: At least the pentagons don’t cause any shading issues, but I want to avoid them nevertheless.

[Ingmar Franz]

Thank you for the tip, @blanchsb. I think the vertices adjacent to the circular holes are pulling too much due to the subsurf modifications despite a second circle around each hole as holding edge.

[Shawn Blanch]

I’ll take a look @duerer 

[Shawn Blanch]

So one comment I have right off the bat: Don’t try fixing things with sub-div ON in edit mode. It’s bets to clean up the raw mesh data. Hopefully you have been doing that. I just noticed you have it ON in edit mode. That can really throw people off big time. If the raw mesh is clean the sub-div will definitely reflect it.

[Ingmar Franz]

Thanks @blanchsb  for your help. I’ve found a solution. First I managed to turn the six pentagons into four quads (yellow) and two tris (green) with some edge spinning and vertex merging:

Then, I managed to create one tri and the rest only quads in each of the red areas above so that I could connect the two new tris and the two tris created before with a loop cut that turned the four tris in total into four quads (green in the image below):

The final all-quad-mesh can be found here.

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