If you were going to (try to) build a belt grinder, design to use 2x72 belts?

[scotchleaf]

If you were going to (try to) build a belt grinder, would you design it to use 2x72 belts? Seems as if the belts are available in more grits at that size, but I recall reading somewhere that the longer belts are more cost-effective. Whats your advice?

 

[David Loukides]

I built mine 2 x 72" because of the many types of abrasives and grit sizes available.
Dave

 

[ANeat]

Its possible to build in the flexibility to be able to use any size belt (within reason) but 2x72 is going to be the popular size.

Im in a the middle of doing a Grinder in a Box build and a longer arm is all thats needed. They (Polar Bear Forge) show it with a 60", 72" and 90" belt

 

[Grayzer86]

2x72 is the knifemakers standard. It will give you the best selection of belts, that are easy to find, and cost effective. I did build my own, and built a 2x72 for these reasons.