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General Aircraft
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REVIEW
Berna Multiclamps
Merlin
Staff MemberSenior Editor
AEROSCALE
#017
_VISITCOMMUNITY
United Kingdom
Joined: June 11, 2003
KitMaker: 17,356 posts
AeroScale: 12,654 posts
Posted: Friday, July 08, 2011 - 01:52 AM UTC
Here's a look at an innovative and hugely useful modelling tool - the Berna clamp.

Link to Item



If you have comments or questions please post them here.

Thanks!
warreni
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South Australia, Australia
Joined: August 14, 2007
KitMaker: 5,924 posts
AeroScale: 2,201 posts
Posted: Sunday, July 10, 2011 - 08:38 AM UTC
100% is a big call Rowan. I got some of these in a second-hand kit I once purchased, but there is a slight problem with them in that they don't always clamp properly, they can twist offline and fall off. But they can be handy at times and I use them a fair bit.
But these have a large advantage in that you can build jigs out of them to hold bit exactly in position. I had never thought of this before and they could be ideal for building biplanes when you are attaching the upper wing....
Merlin
Staff MemberSenior Editor
AEROSCALE
#017
_VISITCOMMUNITY
United Kingdom
Joined: June 11, 2003
KitMaker: 17,356 posts
AeroScale: 12,654 posts
Posted: Monday, July 11, 2011 - 11:56 AM UTC
Hi Warren

Thanks for your comments. As you can imagine, I don't hand out 100% scores willy nilly.

I've been a firm fan of Berna clamps since I bought my first one out of curiosity years ago.

As for them occasionally twisting off, I honestly haven't found that a problem any more than with other types of clamp; in fact, I find that being able to set the clamp with a little bit of a deliberate twist is really useful in applying a touch of force at an angle on an awkward joint, very much as you might do with your fingers.

I have to admit I've never tried connecting them together as a jig, although the maker's blurb does describe using them that way, and special connectors are available (which Shesto don't seem to stock). I didn't mention it in the review because I haven't had a chance to vouch for it from personal experience.

All the best

Rowan