tag:blogger.com,1999:blog-3308436923321175757.post6310115417535073118..comments2024-01-30T07:21:55.119+13:00Comments on Motorised Dandruff: A startRABhttp://www.blogger.com/profile/00929466289526140335noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-3308436923321175757.post-15464909060888346112009-10-26T09:16:57.808+13:002009-10-26T09:16:57.808+13:00The huge benefit of doing the beams as MD has done...The huge benefit of doing the beams as MD has done over I beams is joining them at right angles - those wooden blocks give something solid to screw into. An I beam wouldn't have that and would have a tricky shape. You would have to use metal L brackets or separate blocks of wood to screw into at every joint.Electronic Kiwihttps://www.blogger.com/profile/03744532848554410736noreply@blogger.comtag:blogger.com,1999:blog-3308436923321175757.post-49902171782207949932009-10-26T09:09:22.313+13:002009-10-26T09:09:22.313+13:00I beams work by placing all the steel at the top a...I beams work by placing all the steel at the top and bottom where it does all the work - the central rib is really only there to keep the other bits the right distance apart. (See I was listening in structural engineering class)<br /><br />Two ways to do an I beam for a layout. Method 1 would be to try and glue a strip at right angles - not so easy and relies on glue. <br /><br />Method 2. Attach two thin strips of ply about quarter the height of the central beam or less (or even better use aluminium) glued/ screwed to each side along the top and bottom. Does that make sense? Drill holes in the central rib to reduce weight even further, just make sure you leave enough wood behind to hold together. Sounds like a lot more work than what MD has done though.<br /><br />By the way, the small blocks in the middle won't add any strength (over simply glueing two sides together) but they do increase thickness with minimal extra weight.<br /><br />Good work MD!Electronic Kiwihttps://www.blogger.com/profile/03744532848554410736noreply@blogger.comtag:blogger.com,1999:blog-3308436923321175757.post-68351670769125229422009-10-25T00:41:30.329+13:002009-10-25T00:41:30.329+13:00I'm pretty sure my 2nd form woodwork skills ar...I'm pretty sure my 2nd form woodwork skills are not up to that. This method also has the plus that you can screw into the pine blocks for added strength. plus I've used it before and know its pretty strong, where as I have never used an I beam.Motorised Dandruffhttps://www.blogger.com/profile/18415901398887030249noreply@blogger.comtag:blogger.com,1999:blog-3308436923321175757.post-59878283742571818532009-10-24T22:05:36.972+13:002009-10-24T22:05:36.972+13:00what about making I beams from just ply, light and...what about making I beams from just ply, light and strongRKBLhttps://www.blogger.com/profile/09508677803819291471noreply@blogger.comtag:blogger.com,1999:blog-3308436923321175757.post-79054873541142964142009-10-24T20:36:15.517+13:002009-10-24T20:36:15.517+13:00Good work, and as always very inspirational.
I ha...Good work, and as always very inspirational.<br /><br />I have read about similar methods of construction within the pages of that popular American model railroading magazine.<br />One such article showed use of "luan" style gluing ply together and using ply as layout sides and such like.....<br /><br />Will be interested to see how the modules develop.<br /><br />DrewAndrew Hamblynhttps://www.blogger.com/profile/16214094683222004865noreply@blogger.comtag:blogger.com,1999:blog-3308436923321175757.post-16656775713968807942009-10-24T14:48:21.045+13:002009-10-24T14:48:21.045+13:00post a mess.. broken?, after 6times doing the same...post a mess.. broken?, after 6times doing the same thing it fialy posted my message.manaiahttps://www.blogger.com/profile/11051033927718082230noreply@blogger.comtag:blogger.com,1999:blog-3308436923321175757.post-48582671406459579542009-10-24T14:45:32.203+13:002009-10-24T14:45:32.203+13:00don't make the holes any biger than 1/3the siz...don't make the holes any biger than 1/3the size of the wood, <br />I havan't biult a house for 3 years now so would need to consolt my 3604 biulding bible for presis mesurments.manaiahttps://www.blogger.com/profile/11051033927718082230noreply@blogger.com