AALin wrote:I am attempting to build a tube boomilever for the first time. Does anyone know if people typically have an entirely hollow tube, or do they put in pieces of wood at the ends of the tube? Also, for building the part of the tube to hold the loading block, i've been looking through the blog and I don't understand how a single hole will fit the loading block. Are we allowed to unhook the hook on the loading block and thread it through the boomilever? Thanks in advance
For the first question, scroll up. iwonder says that the tension members pulling at the tube means it needs a higher density at the end. Also, you are allowed to disassemble the block as it states in the rules, but you may run into the problem of a too-short eyebolt because no minimum is given for the length of the eyebolt, discussed on pages 5(?) - 6 I think.
jasontang wrote:Hey guys so states is coming up. For my regionals boom, I used all purple CA glue and then gorilla glue in the base. Where would it be beneficial to use blue CA?
Also, what woods have people had success with in their bases? I tried using a quarter inch piece of bass in front of some balsa in the back, but that broke after ~5kg, so we stuck with a small piece of pine. Obviously, that's pretty heavy.
One more thing. How does a compression tube boom compare to the standard? One big question I had was how the loading block was mounted and the competitiveness of such a design. Also, does anyone have any pictures? I can only find one.
Blue CA is thin CA? I only use thin CA and no gorilla glue (mainly because I'm too lazy to go by any XD). I'm not sure what you mean by a heavy base. What's considered heavy for you? For me, ~0.7 g for a base to pretty heavy, but it may be different for you. One of scioly's members posted he/she reached a score of ~1300(?). Depending on the state you're in, the compression tube boom could be reasonably competitive.