I have a long inseam (36"). When I put the seat back far enough to get support for my thighs instead of only sitting on my butt, I feel the reach to the steering wheel is a bit much. Conversely, when I adjust the seat for a "good reach" to the steering wheel, my weight distribution on the seat is unfavorable for long drives, even with the seat in the lowest position (which is where it is tipped back the most.)
So I printed a couple of seat jacks to change the angle of the seat rails to see if that is a good solution. It is, in my opinion a worthy upgrade, but I'm not 100% sure on the materials.
I put this out to start a discussion about the jacks, but also to maybe get some tips from people who know materials more than I do. I might just send it to "send cut send" and get some aluminum jacks made to be sure.
I printed them in ASA (I had it on hand) as it seems to be a reasonably suited material (did I mention I had it on hand?) I printed the top and bottom layers thicker, 4 wall layers and a 60% triangular infill. It seems common perception is that I may have overdone it, but I figure I'm sitting on these, bolted to the floor of the car for a while, until I decide the height is right. The height of the front of the jacks is 25mm and I printed rear shims to match the angle of the rail as it slants back.
The floor mat has to be trimmed a bit on the rear left rail to fit the shim. I did not make topside shims as the clearance for the seat as it slides over the bolts is pretty small, so the the bolts have only partial contact inside the top of the rail. I may have to reconsider this.
Comments?
I can share the file. But you know, there's a safety aspect, so I'm not sure that posting it is a great plan?
So I printed a couple of seat jacks to change the angle of the seat rails to see if that is a good solution. It is, in my opinion a worthy upgrade, but I'm not 100% sure on the materials.
I put this out to start a discussion about the jacks, but also to maybe get some tips from people who know materials more than I do. I might just send it to "send cut send" and get some aluminum jacks made to be sure.
I printed them in ASA (I had it on hand) as it seems to be a reasonably suited material (did I mention I had it on hand?) I printed the top and bottom layers thicker, 4 wall layers and a 60% triangular infill. It seems common perception is that I may have overdone it, but I figure I'm sitting on these, bolted to the floor of the car for a while, until I decide the height is right. The height of the front of the jacks is 25mm and I printed rear shims to match the angle of the rail as it slants back.
The floor mat has to be trimmed a bit on the rear left rail to fit the shim. I did not make topside shims as the clearance for the seat as it slides over the bolts is pretty small, so the the bolts have only partial contact inside the top of the rail. I may have to reconsider this.
Comments?
I can share the file. But you know, there's a safety aspect, so I'm not sure that posting it is a great plan?
