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    Homemade CFRP mid engine sports car

    Thanks Ian, the gas strut mostly sits between the windscreen surround structure the door frame section (next to the seal bulb), it doesn't really protrude much below these for head to strike .. but having said that there's not a lot of general head space between head and roof which has always...
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    Homemade CFRP mid engine sports car

    Still tinkering with doors, the LH one is nearing completion now Sealing; I fitted a flange around the door aperture for the seal. Once in place I 3d printed some little clips that clip onto the flange and mark out the exact offset i need for the seal to make contact with the door panel. Then I...
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    Homemade CFRP mid engine sports car

    progress update .. been busy having fun with doors ! I've moulded both doors and today did a first test fit on the car with the LH one. So far so good. Not tried to properly align it yet, but expect some challenges with gaps and flushness ! One both sides are on and aligned I will next sort...
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    Homemade CFRP mid engine sports car

    Finished off the fix for the unfortunate spring/body clash. A cut out with a carbon capping piece over the top. I also modified the cross-members to move the inboard damper attachments closer the centre of the car. All done now, phew. Next job .. doors. I managed to fish the door moulds out...
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    Homemade CFRP mid engine sports car

    Hi Michel, the dampers are very close to horizontal, there is some downward load but calcs show the crossmembers should be fine for bending I've been working on the rear wishbones as they are small enough to bag up and take indoors to cure in this cold weather, finished them all now. Thankfully...
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    Homemade CFRP mid engine sports car

    Feb update, been working on the some of the rear chassis parts. Three out of the four rear wishbones are done - more on those later, and finished the rear cross-members that the rear dampers mount to. These are wet layup cfrp with a high temperature resistant resin, again I used a 3d printed...
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    Homemade CFRP mid engine sports car

    Mesa that's not a bad idea, i'll look into that. Depends a bit on choice of powertrain. The large openings were mainly for aesthetic reasons, not practical ones (gives nice view of the headers which i like). Jim - no I bought those tubes pre made, I got them from https://www.easycomposites.co.uk/
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    Homemade CFRP mid engine sports car

    end of 2022 update .. Made and fitted the nose box, this serves as front crash energy absorption and will mount the radiator and front clip hinges. The sides are foam filled. Attached the rear body, made some CF support forks which bolt to the bodywork and then hinge to the lower rear body...
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    Homemade CFRP mid engine sports car

    Thanks Joel, David - i don't find laying up with it itchy, but the dust from cutting or sanding can be. I do find that the fibres get everywhere though which is a pain. Jim - The larger parts are made using vacuum infusion. Dry material goes in, vac'd down, then resin is pulled in and under the...
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    Homemade CFRP mid engine sports car

    Thanks Michel ! progress update, finished the flanges between rear bulkhead and floor/sill on the cabin side. As these will be somewhat visible I moulded real parts and bonded & riveted them in. I find my 3d printer is great at quickly making small moulds. On the other side (engine bay side)...
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    Homemade CFRP mid engine sports car

    Fitted the rear bulkhead panel, just needs a bit more flanging around the sills to be moulded and attached. Me and the kids have enjoyed sitting in it this afternoon making broom broom noises.
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    Homemade CFRP mid engine sports car

    Thanks guys, Chris the main thing with the inserts is to get a large surface area, big enough so that the load to pull it through the CF is larger than the bolt strength (circumpherence of insert x thickness of CFRP x CFRP shear strength) . The biggest challenge i have is alignment, on a normal...
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    Homemade CFRP mid engine sports car

    speeding up progress via application of child labour.....
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    Homemade CFRP mid engine sports car

    Spent most of the last week making lots and lots of little brackets for suspension mounts. Fitted the front suspension, went mostly ok, I was worried the inserts in the tub might have drifted a bit but everything seems in the right place. Still need to machine some brackets to lift the steering...
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    Homemade CFRP mid engine sports car

    thanks for the kind words of support guys, once I get into electrics and powertrain areas (out of my comfort zone) i'll welcome all the advice and help i can get. roof strength test passed this week .. :)
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    Homemade CFRP mid engine sports car

    fitted the roof on, like permanently now .. with glue and rivets and bolts and stuff :)
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    Homemade CFRP mid engine sports car

    finished building the sill inner areas. Still need to sand and polish some of the visible areas to get a flat and polished finish before i drop the spider on. The spider is ready to be dropped onto the tub. I made the window aperture panel and have bonded it in. I will do the rear bulkhead...
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    Homemade CFRP mid engine sports car

    first test fit, starting to look a bit more like a car now ! got some more work to do on both upper and lower before i join them for good, maybe in a few weeks. Then .. window aperture, rear bulkhead, seats.
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    Homemade CFRP mid engine sports car

    Made the sill inner panels, checking fit and alignment, hoping to get them bonded in next week
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    Homemade CFRP mid engine sports car

    Thanks Vinny, I have had some success and some failures with the 3d printed CNC. Have been able to machine aluminium reasonably well, but I found if I try to cut for too long in one go two things happen .. The 3d printed parts start to soften from the heat and i lose stiffness, and second the...
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