Helix feed 3.25 whorls for parabola D=85cm offset

April 18, 2002

It is this helix feed which gives me the best results, after comparison with the patch and the helix 6.25 whorls.

Dimensions and characteristics are identical to those described in the paragraph "parabola".
To click on the label to see the details description and construction:

F1AFZ 27 Mai 2002