poop's tuscaloosa dumplin'!

[Poop]

here, you can see the piece i cut out is already significantly bigger than the seat pan i'd used for earlier mockup.

[Poop]

the following pics i don't think need much explanation, but as with everything else, ask if you do have any questions.










the roll in the back was put in first, by tack welding the furthest point back to a piece of 8" pipe. pan was put on the floor, held down with a foot, and the side of the pipe grabbed with a big ol' pipe wrench at the side lip and rolled forward. no heat needed. and that's 1/8" plate.

then, the pan was hammered with a mini sledge over a harbor freight bodywork dolly, placed in a vise. i did it in the back of a bicycle shop, and i'm pretty sure all the parts got rearranged as the whole back of the shop seemed to be bouncing for an hour or so, off and on, with a gazillion test fits in between to feel for any part that put more pressure on than anything else. so it was a very personal process, going on right between my legs, ending with a seat that fits MY ass/crotch just right.

[Poop]

here, i used wood blocks to get the position and pitch of the seat that was most comfortable, and fit the lines of the bike best.

[Poop]

i don't have any pictures of the process of bending up the 1/2 round, but basically just picture bending two pieces to the same angle, then spinning one around so that the two pieces are next to each other like the letter "Y", then the tip of them together is placed in the vise and clamped hard, so the two pieces can be bent to make the "Y" sit up. then two outside parts of the "Y" are welded to the bottom of the seat, pretty much at the break between the flat part and the rolls on the side.

[Poop]

now to figure a good way to mount.

[Poop]

just a note about why my mounting point is far ahead of the seat: if the pivot point is at the front of the seat, the range of travel is not very much for forward parts of the seat. i don't want the ride to be much harder for my nuts than for my butt, so by putting the pivot point much further, the whole seat can travel more evenly.

[Poop]

this is the only pic i have of this stage of the hinge bracket fab. it wasn't rocket science. when markee handed the frame back to me, he said i needed to shore up that joint between the backbone and the two rear rails (again, my terminology might be off). these little brackets hold the 3/8 pivot for the seat, tighten up that joint, and compliment the curve at the front of the pan.



(the tank in this pic offers a glimpse at my plans for it... a little nip and tuck.)

[Poop]

i don't have any pics of it being made, but the seat hinge was finished using a piece of 5/8 tubing, with 1/8 wall thickness (actually, now i see it is in the pic above). the 1/2 roundbar was cut at an angle from underneath that was wrapped around that piece of tubing as it was welded to it. welds were then shaped so that it just looked like the two pieces of bar were wrapped around the tube. no filler here, since i was powdercoating these parts in a home oven / powdercoat kit.

[Poop]

alright, that's it for today. i'm spent, and i have gas.

[Spade115]

Great build poop Very damn cool

[Dash47331]

Even after seeing the finished bike this is still way cool! Keep'em coming!

[donald branscom]

Originally Posted by Poop

i had marcus extend the rear axle six inches to make some more room for my ass. long and low i was going for. and skinny. drop seat made it even lower. and marc raised the axle a couple inches, too. long, low and skinny.

You need 5 inches ground clearance. OK....4.5" that it.

Frame looks very good. good start.

Now you need a build table 20 iches high 30 inches wide, and 8 feet long.

[donald branscom]

Get rid of that Armadillo fender cheeeessshhh!!!!!

[donald branscom]

Get a tractor seat and modify it.

It has a compound curve and willl be much more comfortable.



I call it my pizza slice seat.

I like your seat mount idea. Good design.

[Boogeyman]

What kind of powder coating rig do you have Poop?