Basically, your process will involve using coarse sandpaper to rough up the crack, coat with a mixture of the resin and hardener and hold together until solid. This fixes the crack, but to add extra strength you can rough up the internal surface with coarse sandpaper, coating in another mixture of resin and hardener and placing carbon fibre on top. Wait for it to dry and use a drill and then file to make the carbon fibre flush with the hole.
Haha, neither did I. It’s not that difficult to get the hang of, though.
Just take the information, absorb it, and do a practice run on a small object so you can get familiar with the process. Also use gloves because that fiber itches like a mofo.
So I’ve done failed repairs on cracked plastic shells before when I’ve tried to use composites in the past.
One thing I’ve started doing which I’ve had a lot more success with is taking a dremel and making a bunch of holes either side of the crack, and treading through some thin gauge copper wire to stitch it up. And then I’l epoxy over that. I use copper wire because its ductile, but you could probably just use a strand of nylon, or even a toe of CF or FG from your sheet.
I can grab a picture later of one of the repairs I’ve done, but the idea was inspired by zip tie stitching like this:
The biggest problem I’ve had with repairs is that the epoxy doesn’t bond well enough with the plastic where its able to point load on the break. The stitching really really helps the epoxy bond there, and also gives another layer of strength.
Epoxy may not have chemical bond to ABS. It doesn’t adhere to PC neither
Using ester resins (vinylester, polyester) could be better/faster. I would even use vinylester becuase it’s much much easier to work with.
The styrene (solvent) in those ester resins will soften/melt the ABS/PC on th surface and you can get 1-1 bond in terms of strenght, but that is when you have geltime (liquid state of resin) like 2 hours or more
PE/PP are inert and you need really special 3M stuff to bond something to it
You can always jep roughen up the surface (for good mechanical,not chemical, bond) and once you have the composite cured you can rivet all the edges with some nice plastic black rivets
That enclosure looks like it’ll be about as long as you can get between the trucks no? I have something you could replace it with but would probably be too long.