After 1 year, many hours of work, 16 moulds, some carbon parts born for scrap, some of them with very short riding life, some sticking conditions from moulds to parts and vise versa, I finished my motocross carbon project!

Very nice job! My one comment would be 15mm is insanely thick, I feel that could be refined further. For perspective, I was involved in a mining project here building carbon fibre haul pack trays for trucks hauling stone out of the pit. Those trays were 20mm thick, and they were carrying 400 tonne...

+x

 

Hanaldo - 10/18/2019 6:48:26 AM

Very nice job! My one comment would be 15mm is insanely thick, I feel that could be refined further. For perspective, I was involved in a mining project here building carbon fibre haul pack trays for trucks hauling stone out of the pit. Those trays were 20mm thick, and they were carrying 400 tonne...

Thank you Hanaldo!... he he he, yes indeed, it is insane thick, especially comparing to aluminium that is much smaller (which it did cracked and welded many times before after some hard suspension bottoming in over jumping landings). With 10 mm thickness is already proved to be more than ok in my old version of subframe, since after a very bad crash (that resulted also in a broken femur) the subframe cracked near the exhaust mounting point (the silencer take a big hit resulting in totally destroying, cracking and bending the titanium headers) but the mounting points of frame were totally safe. Now with my new mould I am totally safe that I can trim the inside of mounting points in order to fit into the frame without risking coming to small on thickness (I have already scrap one subframe for this reason with the previous mould and it hurt me a lot!). After all the thickness is only positioned in a very small area indicated in red square n the following picture, that really does not affect the overall weight of piece.