Sharpener Guide for Large Whetstone

This is a remix of [Whetstone sharpening helper by Rejd](https://www.thingiverse.com/thing:2493459) I take no credit for the design.

I like the idea but it's too small for the stone I purchased.

https://www.amazon.ca/dp/B0055B2RGO _non-referral_ per driley82

So I adjusted the size but only made the 16 degree slide as I like my knives razor sharp even if they aren't as durable that way.