Difference between wheels.

The Delrin Dual V-wheels and the Metal Dual V-wheels are for use with the OpenRail linear rail system (http://openbuildspartstore.com/openrail-black-anodized/) which is attached to the V-slot rail. The V in the wheels rides along the point of the Openrail track. The Delrin version is functionally the better of the two as the wheels roll quieter and cause less wear on the track than the metal dual V-wheels. The metal wheels are actually chrome steel and with a lot of use can potentially wear down the aluminum rail causing looseness in the system.





The Solid V-Wheels and the Extreme V-Wheels are of a similar shape and they ride down in the slot of the V-slot railing. The difference between the two is durability. The Solid V-Wheels are made of Delrin plastic and the Extreme V-wheels are made of polycarbonate. The Delrin version is more than adequate for most applications and the Extreme version has been tested to handle very high loads.



It should be noted that both styles of the Dual V-wheels have the same outer shape as the regular Solid V-wheels and can run in the slots of the regular V-slot railing but the Delrin version has been found to be a little less stiff than the regular Solid V-wheels resulting in a little more flex in the system. Scanning through the build section, you'll probably notice that the vast majority of the projects are built with the regular Solid V-wheels.

The Mini V-wheels function similarly to the Solid V-wheels, they just use a reduced center-to-center spacing on the mounting plates.

I hope this helps.

Rick.

 

I can't speak for everyone but I use Sketchup. The pre-modeled shapes and plates for Sketchup can be found in the Resources Section as well as numerous other locations throughout the forum.

Good luck with the printer build.

 

If you choose Sketchup, you can download all open builds parts into your drawing from the "3D warehouse" in Sketchup.