craig, this is an awesome project, +rep & +sub!!!
Wish you best luck with this!!!!!!
craig, this is an awesome project, +rep & +sub!!!
Wish you best luck with this!!!!!!
Laugh, and the world will laugh with you;
Weep, and you'll weep alone.
Dae-su Oh
Lol, thanks Waynio!
Thanks man!
Ready guys?
Well, working with the carbon fiber was an interesting experience. I got completely prepped and ready to go last night, so that I could start wrapping first thing this morning. I'll admit to being a bit nervous. I didn't have any room for error, and with my OCD about having things perfect, the pressure was on.
I woke up this morning, headed to the shop, and cranked up the music. A little Zune Pass with Breaking Benjamin as the starting point, and things were underway! What you'll see here is the mold ready to go, with the carbon fiber strips sitting on a tube right behind it. This would allow me unroll the CF onto the mold with minimal handling.
It was now time to mix up the resin. I was using a marine grade clear epoxy with a 109 medium hardener. This stuff has a pot life of about 30 minutes, so there was no time to do anything but get underway. With the resin mixed I was on the clock. I slipped on my rubber gloves and hit the mold with a layer of resin from a 4" lint-free roller. The first layer of CF was on soon after.
I continued wrapping and rolling, taking extra care not to deform or stretch the CF in any way. I also had to be sure that all the corners had the fiber nestled in them without issues. I thought I was making good time until I went to apply a little more resin, and the roller started to pull up on the CF. Crap! That meant my resin was hardening. Had it really been 30 minutes already? Well, it didn't matter. I couldn't do anymore at this point. I needed to wrap peel ply around it and get it bagged. I still had one layer to go, but there was no way I could get it on without causing serious issues. So, bag it, I did...
I smoothed the bag out a little and left it under vacuum for about 2 hours.
Now, aren't you all excited to see what's next? Yeah, I am too, but I had to head out of town for the rest of the weekend. The next update will likely be late Monday or Tuesday night.
So, overall, the experience wasn't as bad as I thought it might be, but I was cutting it close with the resin cure time. I also know I'll have a few ridges in the resin from the bagging process, but that's really not an issue right now. I can sand and add more resin. In addition, I'll likely go ahead and add the last layer of missing fiber. I'll update early this week guys!
Originally Posted by ShadowHunter
nice work! can't wait to see it unwrapped! And good choice on Breaking BenjaminIf you like them check out Crossfade, those guys are awesome
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Nice! Bad luck on the resin though. Will you be able to go back and put on the last layer later?
Also, question about the bagging process. Everywhere I've seen CF done before requires crazy high pressures and thus expensive machinery. Does this process create as strong a composite as that? I'm thinking over some projects I have planned long-term, and if this creates anywhere near the strength of high-pressure setting...![]()
TBCS 5TB Club :: coilgun :: bench PSU :: mightyMite :: Zeus :: E15 Magna EVThat we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours, and this we should do freely and generously.
--Benjamin Franklin
Thanks man! I do have some Crossfade in my playlist, along with Evan's Blue, Cold, deftones, Seether, etc. I'll either use the Zune Smart DJ or Pandora, and I've always got a great mix of tunage.
Yes, it was a little unfortunate, but it's fixable. It just means some sanding and filing is needed. I need to get the surface perfect before the last layer of CF goes on. Even if I couldn't put the last layer on, what I have is cosmetically fine. It's just a resin issue, and that can always be fixed. Things like wrinkles in the CF couldn't be.
I'm not sure high pressures are needed for an application like this. The little test piece I made last week, was crazy stiff, and it was only 5 layers. I'm certain this is much stronger than aluminum, and it won't deform, it will flex and deflect.
Originally Posted by ShadowHunter
It's just called 'carbon fiber bagging', right? I'll look into it some more...it would definitely be worth it if it works.. For context, the application I'm thinking of is for the monocoque or frame of a few different vehicle ideas, ranging from <100lbs to maybe half a ton. (Waiting on me having a garage and more expendable income...like so many other project ideas..)
TBCS 5TB Club :: coilgun :: bench PSU :: mightyMite :: Zeus :: E15 Magna EVThat we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours, and this we should do freely and generously.
--Benjamin Franklin
Yes, bagging or vacuum bagging. Wow, you're application would be a little more heavy duty than mine. I'm not sure what your results would be on such a large scale.
Anyway, I apologize for not updating last night guys. I've been struggling with a pinched nerve in my neck, and subsequent pain in my right arm. It was really bad yesterday, and I didn't even make it down to the shop. I'll be having an MRI done tomorrow, and likely have a surgery in my future. It sucks, but I'll keep plugging away. Despite being in a little pain, I'm gonna show you the CF. What you are looking at is the final layer of fiber needed on the case. I'll have to lightly sand a few small air bubbles, but otherwise it's cosmetically pretty darn good. I'm also going to apply one more layer of resin before I remove the mold. I want to be sure the CF is well protected from damage. It's a whole lot easier to sand and fix resin than have a blemish in the fiber itself...
Originally Posted by ShadowHunter
Mmmm, that is pretty.![]()
TBCS 5TB Club :: coilgun :: bench PSU :: mightyMite :: Zeus :: E15 Magna EVThat we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours, and this we should do freely and generously.
--Benjamin Franklin
looking very nice! keep up the good stuff!
and let's hope the neck/arm-thing is not too bad...
Originally Posted by ShadowHunter