Forums > Stand Up Paddle Foiling

diy mast extension

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Created by mattllew > 9 months ago, 24 Jul 2018
mattllew
74 posts
24 Jul 2018 10:16PM
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Don't get too excited... I'm only talking about giving you fellas an extra inch or two


However, thoughts on the following appreciated (ive not actually tried it yet):

-take foil apart and wrap mast end in clingfilm
-place into casting solution or maybe just push into play dough or something like that to make a mould
- poor epoxy/microbaloons into mould about an inch deep (or as deep as you dare)
- allow to set
- take epoxy spacer out and give a really good sand on the sides so its a loose fit inside the mast collar
- drill out holes where bolts will pass through.
- maybe buy some longer bolts if needed
-place epoxy spacer in collar and then fit mast to collar

hey presto a (slightly) extended mast.

Anybody got any thoughts whether this will work or is it madness? I cant see that an inch would cause much more in the way of stresses. Im only considering it because the naish foils have a deep collar and a fairly short mast (55cm). Yes you can buy a 70cm but that would be a bit long for me anyway.

RJK
QLD, 622 posts
25 Jul 2018 1:17PM
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A lot of effort for negligible gain. Stay with the 55 until you have the skills/desire to upgrade to 70

Piros
QLD, 7212 posts
25 Jul 2018 1:45PM
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Just buy the 70cm and cut it back way simpler , cheaper & stronger....

colas
5364 posts
25 Jul 2018 12:34PM
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Given the forces applied to the mast, this seems very dangerous.
Breaking a mast while foiling can also pierce your board, your body, and make you lose the foil...

mattllew
74 posts
25 Jul 2018 3:40PM
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cut it piros? Do the threads go all the way through the mast then?

Piros
QLD, 7212 posts
25 Jul 2018 6:25PM
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No but the hole does so just get a M6 tap and cut a new thread . The whole process takes about 15 min . I've done it a couple of times. Cut mast with a drop saw to get it square , then just get a small shifter and slowly turn in the tap with lube . Keep it square and back off every couple of turns . I've cut them at 63cm & 65cm for a couple of mates.

I have also rewelded a mast we previously cut down , just put a bit of flat bar inside and still going strong today. It was on a kite foil so tons of stress.



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"diy mast extension" started by mattllew