To purchase parts or contact us: ajhartmanaero.... Facebook: / ajhartmanaero Instagram: @ajhartmanaero Recorded on GoPro 7 Black: amzn.to/2YW7B5N Edited with Pinnacle Studio: amzn.to/30NWm11
Hey just a head up from another DIY Carbon Guy, since you infuse upwards with the resin below the part look at the MTI Valves for the resin intake line. They will keep the part under vacuum pressure and you wont have to bother regulating resin flow to avoid pooling, and the parts wont lose as much vacuum when the resin inlet line is opened to ambient air.
Makes me want to try my hand at it! Also love to watch time lapses, but i have a question for the ballooning of epoxy, what if you were to lay the part flat? Would that not eliminate the gravity issue?
awesome video, i would of liked to see the hood latch stuff added and maybe some more of the "side" structure. but this was awesome. any final product footage ?
I smiled when I realised what that little room at the back of your workshop is.. a sort of poor-mans autoclave (oven, really, no above atmospheric pressure).. After installing the giant autoclaves at Premium Aerotek in Germany, my Dad went on to work with the teams doing exactly what you're doing - but on a giant scale - building carbon fibre Airbus airframes (A350 XWB).. laying out, bagging etc. The only difference is their layouts went on 70ft long, 22ft wide skids to be dragged into the giant 25m x 8m autoclave, making it expensive and annoying if the bagging failed! So thanks for surfacing some fond memories :)
No hard rule against it. But generally vaccum bagging is needed for lamination with minimal epoxy (weight savings). Clamps do a good job for glueing parts together. Using vacuum bags for glueing parts requires more effort, creates extra mess and a ton of wastage for no additional strength or weight savings! Then again, what do I know 🤣
Is the clear coat you spray in the outer mould a urethane clear coat? Maybe a gel coat clear? And it becomes part of the final part? I couldn’t tell if it was still tacky when laying the first layer. Great video though!
Wow, that was great. Was that 2k automotive clear you sprayed? I have a autobody background, so I’m big on prep. The clear coat doesn’t have to be prep or scuffed for the epoxy/cf to stick, after it was cured? Have you ever used clear gel coat or is that what it is. Great video man.
Brilliant video! Thanks for taking the time to make it! Would you mind if I asked what knife you are using the cut your carbon as it seems almost effortless in comparison to scissors?
Iv done a few just covering the bonnet with carbon fibre then clear coat UV finish. Best way is resin base coat wait till tacky then roll from one side to the other. Don’t try the spray glue way
Awesome stuff! What was the final weight of the hood pls? And how much heavier would have been if the bottom part - the reinforcement was of fiberglass?
may i know what product you use to demold? so resin wont stick to the mold or in the other video to the glass? also i see you used 2 pieces... is the line between both sheets visible? thanks
What's the surface of your workbench if you don't mind me asking? I'm making a table to cut my fabric on and have been trying to find a material I can use that's large enough
I have a plastic boat that is made with upper/lower clamshell style pieces. Id like to split it and use it as a mold to make a CF version. Im wondering if i could do it for under a grand. I have service truck worth of tools but no vac or other related stuff. I use the boat for river adventures and its setup to row. Id want to incorperate some keel sheilding for landing and dragging/rock protection. I currently use hdpe patches that take hours to make. Boat is 10'x4'x36" & weighs about 140lbs from factory with foam blocks inside. Wondering where it would sit if made from CF.
This is why that sub imploded, the carbon fiber is not the strength in the shape, the epoxy is. Epoxy is not going hold up to pressure, it's brittle and crumbles like when one of these car hoods gets smashed, it doesn't bend like steel, it breaks and shatters like a glass layer would. That guy who designed that sub should have realized this.
I ain't to mad it came with the car and it's chipped and cracked so I wanna do something with it I've seen people doing stuff with chopped carbon fiber and gilding foil
Would you be willing to share your strategy for making pleats in the butyl tape, in regard to the frequency and length of them versus the amount of bagging material? Or do you just sort of eyeball it?
I want to learn how to make my own carbon fiber bonnet (hood) am i wrong by saying i can do it in reverse to the way you am doing it to use the outer skin or would i just completely mess it up doing it that way ?
love the videos. Im going to attempt a hood for car soon. Do you need hood pins if Im using a factory latch. And do you have any recommendations on a vacuum pump. I have one from harbor freight. Not sure if its adequate. Thanks again
This is the 2nd video of yours I’ve watched (subscribed now), and I’m curious of something. Wouldn’t you want the first layer to be as close to a single sheet as possible so you don’t have split lines or potentially mismatched strand orientation to the customer facing “show” side. I understand that some shapes make this impossible (likely). Just my curiosity.
I used to do large stuff flat and never noticed a difference. I always try to infuse uphil simply cause it’s easier for air to float up ahead of the resin front.
Every time I watch one of these videos.....it makes the cost of the final product seem very reasonable. I simply don't have the skill, patience, space, tools, or time to make these things. Amazing to see how the process works from a safe distance 😁
@@ajhartmanaero Oh I see, maybe something to think about in the future. Lot of guys out there that would buy your hood & parts. For the E92 as well…👌🏻🏁
Are there resins that you can just do the vacuum process then leave to cure at room temperature? I want to make something small, about 16 inch x 8 inch x 2 inch in a shallow bowl shape kind of like your hood, but no access to an oven.
@@RealLaughingMan101 I don't know how much gravity really affects vacuum infusions, but it's definitely easier to keep an eye on the progress, in that upright position. imo.
