Clean, accurate and clever work with a quality result. well done guys ;) I've been working with split molds and parts from fiberglass, but this is next level and risk of mistake, and off course $$$. Again - keep it going, good to know that there are such makers in Lithuania ;)
Nice to see your videos, very well done on your first try with prepreg! The oven is also awesome! I've also been working with different ways of making carbon part for a few years for my own project cars and bikes, and it's not easy to do everything right.. Did you pull a vacuum on the first layers of the separate mold parts? That will decrease the amount of pinholes, and for the sensor part, it probably bridged due to the lack of the inner tube conforming to the inside contour.
Reply from Tautvydas: Thanks for the good words! I didn’t use the vacuum for the first layers, but I will definitely try it for the second attempt. For the sensor parts, it's hard to say what went wrong. For the first pipe, I used two inner tubes that were glued together, which might have caused the problem. For the second one, I used two separate inner tubes to fill the inside of the molds, which also might have been an issue. In both cases, the inner tube was one and a half times the diameter of the mold. Next time, I will definitely use the correct tube and see what happens.
The part came out really good ! You'll look back on this as you make more carbon parts and realize how difficult this part is to make for your first part. You really have done quite the achievement here A few things I've learnt is: ALWAYS add draft angles to everything (never have a 90 degree corner) and also fillets help to get the fabric right Into the corners if you can use fillet edges. So use CAD to your advantage , I often put feint index lines into my part so I know where my cut lines are or a middle section or even drill holes I'll need to drill later. And use draft analysis in your card software (if it has it) this will help a lot with future designs Keep it up 👍🏼 great work
Thanks for this experience. It was good to watch. I haven't worked with prepreg but my first carbon fiber attempt was an cold air intake. I had used rubber inner tube of a tyre and bladder molding process went perfect for me. It may be ten years still using that cold air intake. I'm not a professional but bladder molding may work on that part very well.
Thank you for sharing your experience. While for a mass production this might be a good choice, but for a one-time project and for learning purposes, we believe it would be unreasonably overpriced.
@@methuso Thank you for your insight. Interesting thought, but actually, in this kind of project, I think the inner tube is the cheapest part. You just have to use the right diameter 🙂 However, your thought made me curious: if a motorcycle tube doesn’t stick to the inside of the pipe? And would it hold the heat inside the oven without burning or something?
Hi!! Once your have the design on CAD you should make like I do, I design the positive plugs (molds) and print them, glue the together just like you did but you will end up with a proper flanged positive plug from where you can take a proper mold for you parts, just trim it and drill it and it ready, all slpit measure will be on the right spots because you did it on the CAD software.
It's a very difficult part to do as a first time carbon part.But you did great. You forgot 1 thing ,you need to decouple the first layer of carbon (vacuum bag it) to really get it to seat into all corners.Easy composites also does this.
Clean, accurate and clever work with a quality result. well done guys ;) I've been working with split molds and parts from fiberglass, but this is next level and risk of mistake, and off course $$$. Again - keep it going, good to know that there are such makers in Lithuania ;)
Nice to see your videos, very well done on your first try with prepreg! The oven is also awesome! I've also been working with different ways of making carbon part for a few years for my own project cars and bikes, and it's not easy to do everything right.. Did you pull a vacuum on the first layers of the separate mold parts? That will decrease the amount of pinholes, and for the sensor part, it probably bridged due to the lack of the inner tube conforming to the inside contour.
Reply from Tautvydas: Thanks for the good words! I didn’t use the vacuum for the first layers, but I will definitely try it for the second attempt. For the sensor parts, it's hard to say what went wrong. For the first pipe, I used two inner tubes that were glued together, which might have caused the problem. For the second one, I used two separate inner tubes to fill the inside of the molds, which also might have been an issue. In both cases, the inner tube was one and a half times the diameter of the mold. Next time, I will definitely use the correct tube and see what happens.
The part came out really good ! You'll look back on this as you make more carbon parts and realize how difficult this part is to make for your first part. You really have done quite the achievement here
A few things I've learnt is: ALWAYS add draft angles to everything (never have a 90 degree corner) and also fillets help to get the fabric right Into the corners if you can use fillet edges.
So use CAD to your advantage , I often put feint index lines into my part so I know where my cut lines are or a middle section or even drill holes I'll need to drill later.
And use draft analysis in your card software (if it has it) this will help a lot with future designs
Keep it up 👍🏼 great work
Thanks a lot for the encouragement and tips we will definitely use them in our future projects!
Thanks for this experience. It was good to watch. I haven't worked with prepreg but my first carbon fiber attempt was an cold air intake. I had used rubber inner tube of a tyre and bladder molding process went perfect for me. It may be ten years still using that cold air intake. I'm not a professional but bladder molding may work on that part very well.
Thank you for sharing your experience. While for a mass production this might be a good choice, but for a one-time project and for learning purposes, we believe it would be unreasonably overpriced.
a used innertube might be cheaper than the plastic vacuumtube. or even free. from a motorcycketyre and the like.
@@methuso Thank you for your insight. Interesting thought, but actually, in this kind of project, I think the inner tube is the cheapest part. You just have to use the right diameter 🙂 However, your thought made me curious: if a motorcycle tube doesn’t stick to the inside of the pipe? And would it hold the heat inside the oven without burning or something?
Hi!! Once your have the design on CAD you should make like I do, I design the positive plugs (molds) and print them, glue the together just like you did but you will end up with a proper flanged positive plug from where you can take a proper mold for you parts, just trim it and drill it and it ready, all slpit measure will be on the right spots because you did it on the CAD software.
Thank you for your reply. Yeah, it's a good point. We will definitely try this method in our future projects and see how it works for us.
very good job guys !
It's a very difficult part to do as a first time carbon part.But you did great. You forgot 1 thing ,you need to decouple the first layer of carbon (vacuum bag it) to really get it to seat into all corners.Easy composites also does this.
Thank you for your insight. I will definitely try this in our second project. Cheers! 😉
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Думал будет интересно, а тут препреги опять 🥲
Kur buvot dingę?
Works works works