@blanchsb sorry if it came across wrong but I hadn’t thought you implied anything, I am happy to make adjustments as and when. Not having any clear images of the chassis, I am modelling the chassis based on other parts and the images only as a guide. Now we are all on a more detailing stage the process is getting easier for me. With the next update of the main file from @theluthier this week I will be able to move the location of the holes slightly to match your parts. The engineer-in-you would probably agree that if we had detailed drawings with measurements like circumferences of a hole or the precise location of said hole. I hope this clears that up, I was assuming everything was all aligned perfectly. Now I understand the ‘stretching’ issue we can hopefully overcome this by moving the holes to line up.