After remake two defective screws the machinicist genium arrived to home.
The first step was to make some tips for my favourite top, the Spintastics Trompo Grande. After some original tips modification, I understand better how the diferent angulation of the grove and its bottom works.
So that I began to machinice with diferents materials. Each tip was tested intensively and corrected the design.
One of the first. After it I started to use more affordable materials. The tool makes strange things because I did make the idiot by ignorance.
In aluminium all seem easy. (The tip was for a Trompo Cometa and the "floor" was badly calculated).
PVC is easy to handle but the width was small (aparently good). But the shape looks beautifull.
An expriment with a wider size. Unfortunately makes difficult the Snap Star.
And the winner is...
120º of groove-angle, 4,5mm of groove width. 1 mm of sligthly curved groove floor. Silver iron. And small mistakes by the nervousity. The angle of the first side of the groove is the same of the body of the top.
Play with it is very comfortable to me. This tip is adapted to my kind of play.
I take the idea of the simmetrical groove angle of the Aracnoctámbulo's tips of the Jumbo top.
The idea of the bottom of the groove is copied parcially from the Trompos cometa-5 estrellas tip.
Adjust the angle of the body top to the groove is absolutely logical.
The 30º degree of the tip apical is to lift the top from the hand to avoid to do "the wheel. (I dream with a TG of teflon as strummol8). And add a bit of weight to the tip to low the gravity center.
The curved floor of the groove makes the preccesion a bit faster.
I play better when I trust in my top.