Thursday, 30 October 2025

Corner trim

 One thing I had forgotten was that the interior trim isn't IVA compatible. For some reason I thought about it a while back but then 'stopped', on the mistaken assumption that the aluminium trim would be fine. But now I need to sort out some trim to fix it.

The side trims are 655mm long and are 20mm tall and deep. The middle tunnel is made up of three sections;

  • At the back the section is 345 long, starts at 247mm wide and ends at 172mm.
  • The middle section is 490 long, starts with the 172 as the first section, then ends at 173. Not sure how that happened to be 1mm wider but there you go. There's a gearstick in this panel as well but hopefully that won't affect things. 
  • The front section is then 173 wide, then expanding to 310, 367 long. 
My first thought is to print some trim sections. My printer can do around 250mm diagonally. So each section would have to be done in chunks. The sides would need to be done in 3 sections, the middle section could just about be done in 2 sections per side, the front and rear would fit no problem. 

Now I do have some options regarding material. TPU would be the most sensible, a bit of a rubber like texture would make sense. But it only needs to be rounded off, not necessarily soft, so I'm going to start with PETG as a test piece, and see how it works.

I do need to consider the screws though, they need to be left exposed and the edge trim worked around it. 

(Later that day)

I've made a couple of designs to print. First was a 20 x 20 trim. Apart from it not being able to stay attached to the bed, it's just too big for what is needed.

The second option is a 'hockey stick'. I've got a couple of designs of hockey stick, but I think tonight will be sorting bed adhesion and temperature. I've got some nice matter PETG but it's a 'high speed' filament so it looks like it's being cooked by the temperatures I used for regular PETG. The original setting was 255, I've dropped it to 230 which hopefully should help with the stringing and adhesion. 

And it looks like it has, the surface finish is much better. I just need to check how it looks on the car. 

(the following day...or two)


So I settled on a corner trimmed based on a 7mm diameter (so 3.5mm radius). It's a bit bigger than the hockey stick in both directions but I think it'll stick better. And yes, it will be stuck using double sided tape, although it will be pretty strong stuff that is normally used for holding carpet in place. Because of the size of the printer the six parts above are needed just for the outer edges, I need another ten for the centre console. I've only done these six for now, just in case I can't attach them properly. They need sanding, trimming, gluing together as one piece, then mounting on to the car. 


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