Re: WCP: 2017 Product Launch + MCC 2017
 

preload=tension on the belt when system is at rest.

Re: WCP: 2017 Product Launch + MCC 2017
 

Ours are slightly different and include a counterbore to accept a portion of the shoulder bolts shoulder to eliminate the shear/bending force on the threads themselves (where the cross section is smaller and there is an inherent stress concentration in the thread itself). This means the thread/screw is primarily resisting the axial load and does not have to withstand the full shearing force of external loads.



I should note that all of these additions are awesome and we have already ordered a handful of the new stuff to evaluate and likely use this season. Awesome work to RC and all the WCP folks. It's good stuff!

Re: WCP: 2017 Product Launch + MCC 2017
 

5mm GT2 are marginally stronger than 5mm HTD, but note that these sprockets are 3mm GT2. They will not be suitable for drivetrain loads.

9mm wide GT2 (5mm) is VERY borderline for an FRC drivetrain, as it's only rated to around .8 HP at typical WCD high gear wheel rpms (1000+rpm)(with common 24T pulleys). 2 CIM gearbox can output peak ~.9HP. You would need to step up to at least 26T pulleys to meet this requirement with 9mm belts.

Re: WCP: 2017 Product Launch + MCC 2017
 

I don't think anyone is recommending the 3mm GT2 for primary drive train loads (they are however final for initial reduction in drives).

We've used them a good deal on intakes, shooters, initial drive reductions, etc... with great success.

Re: WCP: 2017 Product Launch + MCC 2017
 

The post I quoted and the other follow up reply seemed to pretty specifically be asking about HTD vs. GT2 vs. GT3 in in a tradional WCD style application. Wasn't sure they realized these are 3mm.

Re: WCP: 2017 Product Launch + MCC 2017
 

I know I say this every year but now with even more of your own products you should really consider stocking them in the VEX Ontario warehouse. Shipping times are obviously crucial in FRC and I think the high density of "high performance" teams in Ontario would be well suited to your products. I can recall a couple of times were a product offered by WCP would of been a better solution but we chose something else due to convenience.

Re: WCP: 2017 Product Launch + MCC 2017
 

In addition to expidited shipping times, it would help reduce costs aswell. I'm not sure if it's just a glitch right now, but when I went to buy a few of the polycord rollers and a few feet (I assume it's sold by the foot at $0.75) of poly cord, the shipping came out to $140us to ship economy to ontario :ahh:.

Re: WCP: 2017 Product Launch + MCC 2017
 

I always re-assemble the gearboxes we look into buying in Solidworks, and that includes the new flipped DS. Was wondering though why there is a 44t gear with a 1/2 hex bore on a 3/8" shaft (See attached screenshot)?

Re: WCP: 2017 Product Launch + MCC 2017
 

Let me check on the polycord issue.

Re: WCP: 2017 Product Launch + MCC 2017
 

That guy gets an adapter. Currently there isn't a 44t 3/8 hex gear. There will be one soon :)

Re: WCP: 2017 Product Launch + MCC 2017
 

Deleted because apparently I can't read.

Re: WCP: 2017 Product Launch + MCC 2017
 

Try that now, it should work. Thanks for pointing that out.