I’ve not gone away or given up on the blog, but have had a bunch of setbacks recently with this composites journey, so I thought I’d get them out here and move on.
Firstly, my compressor died (all-in-one motor and pump unit seized). The replacement part isn’t due until tomorrow.
The moulds I made for the fuel tank are wrong. I did two things that went wrong:
I can’t vac-bag a mould with a 180 degree return – every time you turn it over, the cloth moves about. I need to rethink the way I’ve moulded this part.
My plan to infuse the transmission tunnel as three separate thin cosmetic parts, and then put the moulds back together and do the remainder of the infusions failed. I’m using a new release agent, and it’s excellent but there way no way I could get the backing materials off the mould with out popping the part out. Then I noticed that I’d got a lot of voids on a sharp return which would have meant a lot of chipping out and filling.
The tunnel top mould that I had to polish didn’t fare terribly well. The edges on the tunnel top that turn down into the tunnel sides (or up rather, on the mould) chipped a bit under the polishing disk.
So, get well programme is:
- fix the compressor
- scrap the tank moulds and make new ones
- scrap the transmission tunnel moulds
- cut out the seat squabs and footwells, and make a single composite tub