Hi Sage,
Thanks for sharing your build. How are you tensioning the belts?
Peter

Hi Pete,
The vertex sections are designed so that you can use M3 hardware to "pull up" the entire top triangle. So you simply loosen all the end cap screws, lower the entire top of the printer, and loop the belts. Then use long M3 screws (with washers hooked on the V-slot) to pull up the top and apply tension to the belts.

That, or just use a pair of needle nose pliers to pull the belt tight and lock it in. I definately make sure that all my belts are exactly the same number of teeth first.

Let me know if this doesn't make sense.
-Sage

Do you by chance have any pictures of the idler pulley portion? I am not sure how the idler cap fits to hold the idler.

Sure Josh, sorry for the delay. Here is how I did the setup. Using an M5 bolt through the entire stack it looks like this:
Bolt head: washer: idler cap: washer: bearing: spacer: pulley: nut: nut: bearing

That is what I did, but you could do whatever works with what you have lying around. Really all you need to do is get the two bearings held in place with something for the belt to ride on. I used additional pulleys because I had them lying around, but I could have easily just used another bearing sandwiched between two large washers. Making a stack that is held in place to the idler cap (two nuts on the end) makes it easy to assemble/disassemble. Here are some photos, let me know if it doesn't make sense.