mak790 Posted September 23, 2007 Share Posted September 23, 2007 I'll get another hard drive to support, or increase allowable files sizes, whateverThat's the good news for the future. I was worried about space limit. Quote Link to comment Share on other sites More sharing options...
mak790 Posted September 25, 2007 Share Posted September 25, 2007 TMann I read your post on canardaviation and maybe you really should cast these hinges if you preffer solid ones. I had subject about casting and foundry in my school theory and laboratory we were using different methods like sand casting, die casting, investment casting and others but I dont know how I should call them in English. There is no point to use die casting method if we are going to make less then 400 parts (its to expensive) I belive the best method will be sand casting. Short info about sand casting on wikipedia http://en.wikipedia.org/wiki/Sand_casting I included picture of the part which I did in that method. I know nothing special but the point was to become familiar with that method. Quote Link to comment Share on other sites More sharing options...
TMann Posted September 25, 2007 Share Posted September 25, 2007 The 'Lost Foam' sand casting technique is what I tried. It had a tendancy to twist a bit as it cooled. The next step was to cut a master out of wood beveled slightly towards the center to facilitate extraction from the mold. If I was going to make several sets that would be a very good, economical way to go ........ however... in the time it would take me to make the master, drive back and forth a couple times I could cut them out of a solid pice of 6061 so that's what I did. It's just a small task in the build and I didn't want to turn it into a career. Quote T Mann - Loooong-EZ/20B Infinity R/G Chpts 18 Velocity/RG N951TM Mann's Airplane Factory We add rocket's to everything! 4, 5, 6, 7, 8. 9, 10, 14, 19, 20 Done Link to comment Share on other sites More sharing options...
mak790 Posted September 26, 2007 Share Posted September 26, 2007 I think the "Lost Foam" is the worst method it looks simple but thats the only one positive thing about this method (my opinion). We were using wood models with sand core. "I didn't want to turn it into a career." lol mak Quote Link to comment Share on other sites More sharing options...
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