Good write up on the epoxy experienceI'm no expert on epoxies but I use 5 minute, 30 minute, and gflex epoxy for different things. I have plastic reusable "mini spatulas" for mixing. One thing I have noticed is the gflex is far more flexible and difficult to remove from the spatulas than the 5 minute epoxy when they are dried. The 5 minute is much more brittle once it is dried. 30 minute epoxy I use is somewhere between gflex and 5 minute for being brittle/flexible/strong in my experience.
I have read a number of threads here discussing the merits of epoxies and from what I read it seemed there were real advantages to the slower setting epoxies. I would suggest reading through some of them. They certainly have me using gflex for my scales.
I wrap my blade with masking tape and do the "wipe the front of the scales 3 or 4 times" to get off excess epoxy. I also sharpened a 1/4" piece of round brass that I use to scrape any excess glue off the front of the scales when it has dried. It won't mark the steel on the blade, but will do a great job of removing excess dried epoxy.
I started knife making like you. Bought some blades and put scales on them. I was too cheap to buy a Helle Tamagami for $230cdn but noticed I could buy a Temagami blank for $75 cdn. I figured I was good enough at wood work that I could make a handle. Off I went. I did a few of them and learned to shape the handles and then started making blades. Now I have built a grinder and the only thing I don't do myself is heat treating.
I can't see really well on your picture, but it looks to me like you could round the edges more on your knife. Look at examples of handles. I tend to go for a "oval" shape as you look at them from the end and bit of a pop bottle shape as you look along the length. Yours looks a bit flat to me.
The Temagami I did 5ish years ago is an off centered oval and is pretty banged up now, but it feels good in my hand. It has been my every day carry at work forever. I make much better handles now, but it was my first one and I really like it. I spend a lot of time feeling the handle in my hand and seeing what it feels like now as I shape it. I work a lot with a rasp when I get close.
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Now I tend to make a knife or two, use them for a few weeks as my every day carry and then give them away when I find the right person for them and go back to the temagami.
Here is a few pictures.
How important or valuable do you think flexibility is for knife bonding?
In a stick hidden tang I’m thinking little to none. On a slab with scales we rely on mechanical fastening.
I also use 3 different epoxies. 5, 15 min and 24 hour