- Feb 25, 2009
- Reaction score
While the metal angles keep the fin 90°, what keeps the fin perpendicular to the tube? Since the fin / metal angle assembly is free to float left & right , you may have a 90° fin, but slightly askew to the tube axis, and/or offset from the perpendicular point on the tube..
The metal angle does not float. it's not a great picture but in the first pic you can see the "V" that aligns the metal angle with help from a scrap piece of balsa. the Lego part used is this:
another picture with the "V" groove disassembled:View attachment 330879
Genius! Way Cool..
My hat's off to you Sir.
Was this conceived using LegoCAD? If so, mind posting it? If not, do you a parts list for this?
My 9 year-old daughter, who is a certifiable Lego fanatic, decided to make a jig to help her brother build his BT-60 rocket. I showed her the pics from this thread, and she went to work in her Lego lab. She didn't have enough sloped pieces to build both halves of the guillotine (without breaking up her other creations), so she improvised a little. It works great!
View attachment 335503
I admit I'm not still 100% clear how the vertical spacer pieces are held into the little clampy things.I don't use Lego CAD programs. The jig is built with pieces of different color so I would think you can copy the design from the pictures. if you want me to take some more pics of some aspect of the structure let me know.
I admit I'm not still 100% clear how the vertical spacer pieces are held into the little clampy things.
This whole thread really does make me want to try this, although I don't know if I'd be able to scam those pieces from my daughter's (extensive) collection. The cool thing is that it would be so easy to try out all different variations, and even customize for the needs of a particular model.
Although I would definitely be tempted to whip out the Kragle to secure some parts of it.
It's because in the post 19, you seem to have copy/pasted from the displayed text in post 5. The forum shortens display of URLs, so you essentially copied a corrupted URL. Visually, it all looks the same, but if you hold the mouse over the links in the two posts you'll see they're pointing differently.I don't understand why the link in post #19 doesn't seem to work but the link in post #5 does work. If you want to see the Lego part, check out the link in post #5.