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Re: My Perfect Impression
By:Dave Houser
Date: 3/27/2001, 1:31 am
In Response To: Re: Proper Seat Arrangement... ? (Pete Rudie)

: Very interesting, Rehd. Somebody posted a while ago the kayakfit.com URL, and
: I used their recommendations as a starting point. They suggest a 5* seat
: angle, and at first impression it seemed a little steep. But paddling
: position is different from sitting position, with knees higher, so perhaps
: the 5* allows for this. It does not seem uncomfortable any longer, but
: more seat time will tell the tale. My backrest is 5* also, but it is so
: small and so low on the back anyway that a couple degrees either way
: probably don't matter much. Backbands would also tend to conform to the
: natural angle, whatever it is.

Great website. I developed a method of doing the final foam carving to get the perfect butt imprint. I had carved a foam seat the best I could by sitting, feeling and looking at the foam for any telltale imprint or pressure marks. When I tried it out paddling, my feet fell to sleep.

I sat the kayak on my living room carpet and stuffed rolled towels on each side to keep the kayak's vertical axis vertical when I sat in it. I then cut a piece of 6-mil plastic to the width of the seat and twice its length. I folded the plastic in half lengthwise and taped the two sides with clear plastic packing tape to make a pouch and then put a new all bees-wax, toilet seal inside, pressed the air out and taped the last side closed. The taping was done with care to avoid wrinkles and to get a leak tight seal all around. I placed the wax filled pouch into a pilot-light-only warm oven for a couple minutes to soften the wax. I put foil to from a drip pan on the shelf under the wax filled pouch for safety. Wax is a fire hazard so I watched closely, a hair dryer might have been safer. As soon as the wax was soft not melted (it turns clear when it melts) I rolled the wax out evenly in the pouch with a rollingpin on the counter top. After warming the wax again until soft, I placed it on the seat of the kayak and sat on it wearing my normal paddling pants. After a couple minutes I got out and lifted the pouch out. Holding the pouch up I could see through the thin spots where the seat applied the most pressure to my buns. Overlaying the pouch back on the seat I noted the pressure points on the foam and marked them with a big felt-tipped marker. I took the seat outside (I used Velcro with hooks epoxied to the hull and pile contact cemented to the foam) and used dragon skin to carve away the marks. I put the foam back into the kayak and did another soft wax impression, marked and carved. I repeated this until the wax was equal thickness over the total impression.

With this method I discovered the seat shape and angle match my shape when sitting in the actual paddling position in my kayak. The final result fits like a glove, so to speak, and no more sleepy toes.

Messages In This Thread

Proper Seat Arrangement... ? *Pic*
Rehd -- 3/26/2001, 3:20 am
Human form and furniture
Tom Kurth -- 3/27/2001, 10:17 pm
Re: Numbness solutions
Mike Hanks -- 3/28/2001, 11:13 am
Re: Proper Seat Arrangement... ?
Pete Rudie -- 3/26/2001, 11:25 am
Re: Proper Seat Arrangement... ?
David Barrett -- 3/28/2001, 1:41 am
Re: Proper Seat Arrangement... ?
Rehd -- 3/28/2001, 12:14 pm
Re: Proper Seat Arrangement... ?
Rehd -- 3/27/2001, 2:36 am
Re: My Perfect Impression
Dave Houser -- 3/27/2001, 1:31 am
Re: My Perfect Impression
Rehd -- 3/27/2001, 2:30 am
Re: Seat Angle
Dave Houser -- 3/27/2001, 8:31 pm