Screwdriver
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- 11,053
Very happy with the finished tank/seat fixing. The grey metal bracket bolts onto existing fixings on the bike. 3D printed part can be adjusted fwd/bkwd 3mm in elongated mounting holes to adjust for a perfect "shut line". Tank rubber is held at the correct height but can be shimmed if required. Bolt goes into captive aluminium nutsert. Front of the part clips over the titanium bar bolted to the seat pan, the bar itself is bolted though slots for further adjustment. Keeps the seat in the correct position and holds it firm against twisting.
It all looks rather obvious now which is a good thing I suppose but it took a while to get there. I haven't seen the bike for ages but will be doing a test fit tomorrow.
Quite a lot going on under there, never to be seen again. The rear of the tank has a big ugly seam and a relatively large, equally ugly bracket to bolt it down with. All hidden under the seat hump.
This too looks really obvious and "obviously" the right way to hold down a seat but the logistics of fitting meant whatever the design needed to be adjustable after the entire seat has been foamed. Most of the adjustment is at the front and the holes/nutsert for these will be fitted in-situ. There is still some leeway for slotting out the mounting holes.
Finally, I made up a sliding template for drilling out the rear hump mounting bracket, shown earlier. Precise angle can be adjusted with 3d printed shims or a new 3d printed carrier (shown earlier). Again, this can only be finalised once the seat comes back after being foamed. It's all a bit theoretical currently, tried to cover all my bases but the bottom line is, once the seat is covered, it just has to fit first time!
It all looks rather obvious now which is a good thing I suppose but it took a while to get there. I haven't seen the bike for ages but will be doing a test fit tomorrow.
Quite a lot going on under there, never to be seen again. The rear of the tank has a big ugly seam and a relatively large, equally ugly bracket to bolt it down with. All hidden under the seat hump.
This too looks really obvious and "obviously" the right way to hold down a seat but the logistics of fitting meant whatever the design needed to be adjustable after the entire seat has been foamed. Most of the adjustment is at the front and the holes/nutsert for these will be fitted in-situ. There is still some leeway for slotting out the mounting holes.
Finally, I made up a sliding template for drilling out the rear hump mounting bracket, shown earlier. Precise angle can be adjusted with 3d printed shims or a new 3d printed carrier (shown earlier). Again, this can only be finalised once the seat comes back after being foamed. It's all a bit theoretical currently, tried to cover all my bases but the bottom line is, once the seat is covered, it just has to fit first time!
