BIG Carbon Fiber S-Duct from 3D Printed mold for larger RC Airplane
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- เผยแพร่เมื่อ 5 ธ.ค. 2022
- Showing how I made the large Carbon Fiber S-Duct using a 3D Printed Mold. Making composite parts is a time consuming but fun process. To create the molds, 110 hours of printing time, 48 hours to bond and cure all parts, and 2 days to sand, prime, paint and finish.
Hey! Awesome work on that duct. I am very intrested how did you prep'd the 3d print, as the result came out sweet looking. Consider making the video about that, as this is quite a hot topic nowdays.
I made a few attempts but for some reason I cannot pull the laminate out the mould.
Keep up the good work!!
Thanks for the comment! I am strongly considering taking some time out to produce a video detailing the steps I took to creating the mold, post process, and prepare for casting. It's a long tedious process, but worth it when you see parts come out perfectly. Getting the laminate out of the mold can definitely be tricky if you didn't prep it correctly ahead of time. Thanks for watching!
Another vote for details of the mold creation process. It’s a skill that has applications across the hobby and would open unlimited possibilities.
I was a model maker for an industrial design firm. We built a 1/4 scale model of a LSA that a private investor wanted to develop. That’s what your projects remind me of. I love working with composites.
BTW. That model CRASHED😂😂😂 Horizontal stab chord grew by 33%. Twin boom weird looking pusher plane. Unfortunately, the funding for that project fizzled out. The entire model was composites. REN Shape modeling molds. Hours and hours spent Sanding, priming, prepping. But damn when you pull a flawless part…….
Nice work.
Oh man, that sounds like it was an awesome project to be able to work on. Too bad it didn't make it. Nothing can prepare you for the amount of sanding and prepping to get a mold ready for casting. I tried to capture a tiny taste in my most recent video, but could never capture the true scope of work involved. This mold, for the S-Duct, took more than 10 days to print, join, and prepare.
@@RCCAD2VR back when I was a model maker, 3D printers were just being launched. I build museum exhibits now.
All of our composite molds were RenShape. Not sure if your familiar but it’s awesome stuff. You can get it aluminum filled, put an edge on it and polish it out. It will hold an edge.
We had 5 axis CNCs. Then sand for days on end😂 We also made components for the RV10 aircraft. Carbon fiber dashes and accessories. Pre-preg carbon fiber and an autoclave. Aluminum molds. That shit would come out and like you said, watch your hands.
I’ve seen some 3D printed parts and the resolution isn’t what I used to work with so I can imagine sanding it.
Super 👍
Danke :)
Thats suuuuper awesome!!! But what about if I don’t want that big borders, what a technique is required to do that? Regards
Where did you get the mold?
And what’s that S duct for ? Is there a single get engine in the back ?? Needed an air scoop??
This is one of those videos where he makes it look so easy, but it's not!! ;-)
Hey mate you think it would work to build a bike frame like that. I mean when you connect the tube how strong it is
It won’t work. Because this method has no structural integrity whatsoever. Bonding separate pieces to make one is a nightmare. Bikes go through lots of stress and bonded pieces won’t hold up.
@@tommyylau thanks top g
Do u trim the edges when the 2 parts are glued together? If so, is the bond strong enough?
The edges did get trimmed off with enough lip to hold the halves together. I made a few design changes to make it easier in the future.
What is it? the secon layer
And no need input to the ovens? Just vacum?
It's the Wet Lay process, You're thinking of PrePreg which requires curing in an oven.This S-Duct is two layers of CF, Then Peel Ply, followed by breather material.
The post cure is good for all carbon lay-ups… pre-preg or not… but I think the resin is such that it has a really long time at room temp, and can be kept for some time in a fridge.. ( they usually have refrigerated drawers in the mold/lay-up rooms.. prob next to the autoclaves.)
But the ramp/soak/de ramp oven temps are controlled by a program and yeah… it gives the whole “bond” a good bit stronger… it does kick off the pre-preg, and the vac bag/bleeder fabric/peel ply.. is so it can squeeze out as much resin as possible and still have it all stick together. The strength is in the glass, not the resin… or carbon in this instance
Wax on!
Wax off! 😜