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Hints: Using a RDM extension on a SDM

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Created by dism > 9 months ago, 29 Nov 2008
dism
NSW, 660 posts
29 Nov 2008 6:01PM
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#EDIT//: To all the parts geniouses:

Trying use a RDM extension (my only decent extension) to convert an old ~400cm mast for use with a 4.7

Don't wanna buy an SDM extension (plus the mast is cut down so wont fit anyway) if I can get away with it, as will end up buying a RDM 400 when money permits and a SDM will be useless surplus

So how do I adapt a RDM extension to a cut down (narrower) SDM mast?

Been trying a compressed foam/gaff tape wrap around extension and also to stay inside mast

Any ideas?

sflack
VIC, 574 posts
29 Nov 2008 6:20PM
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Buy an SDM extension, then sell it once get new gear!

choco
SA, 4175 posts
29 Nov 2008 6:02PM
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use the mast upside down that way the extension will fit easily in the tip of the mast

dism
NSW, 660 posts
29 Nov 2008 6:45PM
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The other thing I failed to mention: this mast isn't proper standard SDM, as it has been cut down already (i.e: doubt a SDM extension will fit, prob between SDM and RDm would work)

So i'll take it no one has done this?

NotWal
QLD, 7430 posts
29 Nov 2008 8:27PM
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I don't think wrapping it in anything soft like gaffa tape will do the job. You have to stop the mast deforming where it accepts loads. You have to have a reasonably snug fit and a hard non deforming shim to do it acceptably. Maybe you could find a bit of ally tube that is close to a snug fit in the mast. The fit between the extension and the tube is less critical. Gaffa n bandaids might be ok for that.



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