jan brilman Posted February 1, 2023 Share Posted February 1, 2023 With the usual rib block there is always the danger that one also sands away the template ribs a little. This method prevents that. (May be someone else also has figured this out, I don't know . . . ) The cardboard has to be splippery, and must be exactly the same height as the sanding paper (I used P80). For the spars: make exactly fitting, similar, dedicated tools. Tapered wings etc.: everything is possible. Have fun! jan brilman. 1 2 Quote Link to comment Share on other sites More sharing options...
Flying Squirrel Posted February 1, 2023 Share Posted February 1, 2023 Good idea but is it not prone to twisting? Quote Link to comment Share on other sites More sharing options...
jan brilman Posted February 1, 2023 Author Share Posted February 1, 2023 (edited) As far as twisting is concerned: in the case of an airfoil with a flat bottom, sanding of the top of course is not a problem. Otherwise you wil have to support the block and template ribs to prevent them from twisting. As you can see I use magnets; that makes it very easy to adjust the supports. jan. Edited February 1, 2023 by jan brilman 1 Quote Link to comment Share on other sites More sharing options...
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