Some more VersaChassis Questions

[Oblarg]

Originally Posted by DampRobot

The one for the regular season we had to check almost every match and retention frequently (we were running chain and 4" wheels) as it slipped fairly regularly, even when tightened super hard and locktited down.

Yeah, this was my exact experience with bearing blocks on 80/20 sliders. "Re-tension belts/chains" was the number-one drive item on our pit checklist every year we did that, because they simply would not stay put. It wasn't a bad setup, but it doesn't compare to a really good system where you set it up and don't have to touch it again.

The cams look really nice for chain, but I prefer belt and I think simply putting a single bolt through the frame material would probably be easier (and have marginally less weight/complexity) there.

Unfortunately, I won't get to see any of this in practice this year because 449 had already purchased framing material before VersaChassis was unveiled, and 4464 is (overwhelmingly likely) gonna stick with the kitbot chassis. There's always next year, though.

[ksafin]

Are four bolts really enough to hold a gearbox and 2-3 CIM's onto the tubing? Seems iffy. Does anyone put any kind of support bars between the gearboxes similar to how the kitbot has hex tubing between the CIMple boxes?

Originally Posted by ksafin

Are four bolts really enough to hold a gearbox and 2-3 CIM's onto the tubing? Seems iffy. Does anyone put any kind of support bars between the gearboxes similar to how the kitbot has hex tubing between the CIMple boxes?

Tighten them well enough and it's more than enough support. In fact our offseason bot only used the two outer bolts and the transmissions held on perfectly.

[ksafin]

Awesome. Also, on this page: http://www.vexrobotics.com/vexpro/ge...es/wcp-ds.html

In the bottom, there's quite a bit of options. Do you know the difference between "WCP DS - Dual Speed Base Kit (217-3423)" and "West Coast Drive Version Base Kit (217-3424)"?

Originally Posted by ksafin

Awesome. Also, on this page: http://www.vexrobotics.com/vexpro/ge...es/wcp-ds.html

In the bottom, there's quite a bit of options. Do you know the difference between "WCP DS - Dual Speed Base Kit (217-3423)" and "West Coast Drive Version Base Kit (217-3424)"?

As you can see in the CAD I sent you, the West Coast Drive Version has room inside the gearbox for sprockets and pulleys. The Base Kit doesn't have extra room.

[ksafin]

Originally Posted by Andrew Lawrence

As you can see in the CAD I sent you, the West Coast Drive Version has room inside the gearbox for sprockets and pulleys. The Base Kit doesn't have extra room.

Gotcha.