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Re: Strip: Suction cups
By:Bill Hamm
Date: 2/28/2011, 12:13 am
In Response To: Re: Strip: Suction cups *PIC* (Bryan Kapteyn)

: They're not too powerful I don't think since I can pry them off
: with a screw driver, in fact I'm a little concerned that they
: might not be strong enough. I used a lot of them (40 per hatch,
: except the day hatch which has 16) but they're only 1/16"
: thick since I used 3/16" strips (and didn't want to risk
: coming through the deck) and by time you get the boat sanded
: down the deck thickness is about 5/32" in places. The funny
: thing is putting in all of these magnets sounds like a lot of
: work, but in reality they take considerably less time to install
: than internal bungies. The most work is drilling the recesses in
: the hatches, the lips are easy since I leave 4 un-cut sections
: when I cut out the hatches for alignment reasons and they stay
: that way until all the hatch lips are complete. I drill the
: magnet recesses in the hatch while they are still thusly
: attached to the deck by these 4 narrow uncut sections on the 4
: corners of the hatch, and then glass over the inside of the
: hatch to bury the magnets and strengthen the hatch. When I do
: the lip lay-up I use shelve liner as a mold release over the
: entire hatch area, then I put down a layer of 5.7 oz twill CF
: around the edge of the hatch, a layer of 4 oz glass, and them
: just drop the magnets onto the lay-up...the magnets find their
: mate in the hatches automatically since they are already
: installed. I then lay up 3 more layers of glass and another CF,
: let it cure for 12 hours, pop them off and I'm done with hatch
: retainers. I think I only have a total of 4 hours per boat in
: magnets and hatch lips. I have to thank John Caldeira for the
: hatch-tabs, that is such an elegant idea!
: I am putting tethers on all of them of course, but I want them to
: be watertight too. Time will tell, sea trials are only 2 weeks
: away. Oh yeah, rolling in 34 degree water....probably more of a
: test for me than the boats :-)

: And I have to say as so many have said before, this forum rocks!
: Almost every good idea I have ever found has been gathered here
: from so many of you guys! And whether you change the forum
: format or not Nick, we all have you, Ross, CLC, and other forum
: gurus to thank for this most excellent way of exchanging ideas.

: The pic is of an Iggy I built from plans made available by Bryan
: Hansel, someone else I found on this forum. Great boat in rough
: water! The knee bump-out is an absolute nightmare for forming
: strips without staples.....but we endeavor to persevere, don't
: we?

: BK

Pretty boat and another of Bryan's designs :)

Don't see him around much anymore, miss him being here.

Bill H.

Messages In This Thread

Strip: Suction cups *PIC*
Bryan Kapteyn -- 2/26/2011, 5:48 pm
Re: Strip: Suction cups *PIC*
Bryan Kapteyn -- 2/26/2011, 5:50 pm
Re: Strip: Suction cups
Paul G. Jacobson -- 2/26/2011, 6:15 pm
Re: Strip: Suction cups
Bryan Kapteyn -- 2/26/2011, 9:46 pm
Re: Strip: Suction cups
Bill Hamm -- 2/27/2011, 12:11 am
Re: Strip: Suction cups
Ian Cummins -- 2/26/2011, 8:21 pm
Re: Strip: Suction cups *PIC*
Bryan Kapteyn -- 2/26/2011, 9:43 pm
Re: Strip: Suction cups
ancient kayaker -- 2/26/2011, 11:44 pm
Re: Strip: Suction cups *PIC*
Bryan Kapteyn -- 2/27/2011, 10:02 am
Re: Strip: Suction cups
Bill Hamm -- 2/28/2011, 12:13 am
Re: Strip: Suction cups
Bryan Kapteyn -- 2/28/2011, 8:07 am
Re: Strip: Suction cups
Tim Sheehan -- 2/27/2011, 12:46 am
Re: Strip: Suction cups
Donovan -- 2/27/2011, 5:53 pm
Re: Strip: Suction cups
bryan kapteyn -- 2/27/2011, 6:11 pm
Re: Strip: Suction cups
Donovan -- 3/1/2011, 11:43 pm
Re: Strip: Suction cups
Bryan Kapteyn -- 3/2/2011, 6:38 am