Check out brtbladeworks (Ben Tendick) on IG. He does a lot of wrapping. The interesting thing is his wrapping jig. A hinged clamp for the blade that swings side to side for wrapping.
I bought a jig from DDworkrest (Instagram) when I started to make folders. I was unable hold the blade to grind freehand well. While I still grind freehand on some, I find I use the jig more because grinding with it is faster, cleaner and more repeatable.
I scan my blade before putting the handle on. I pull the scan into Lightburn as a picture, trace the image and delete the original which gives me an outline. I burn that on MDF which gives me an outline of where the blade positions. I use tape to hold the blade position while setting focus.
Send a picture of it to Ben Greenburg. He has always been happy to answer questions. And sells great wood if you haven't looked.
https://greenbergwoods.com
This is my way of life also. Over the years there has been very few items from HF that have found their way into my shop. I have bought castors and the little segmented razor knives though.
Is there a difference between marking aluminum and steel or stainless? I tried to mark aluminum with my 20 watt both raw and painted black. Once at 100% power- 150mm sec, and 100% power and 50 mm sec. took the paint off but no etch into the metal. Help!