Minimum radius for tangential feedrate adaptation

This command completes the tangential feedrate adaptation programmed with G10/G11. The minimum radius is taken into account in circular blocks containing the identifier for feedrate adaptation. The feedrate only will be adapted, if the programmed circular contour radius is greater than or equal to the minimum radius.

#SET TANGFEED RMIN [ <expr> ] (modal)

<expr> Minimum contour radius Rmin at which the tangential feedrate is not applied.

Minimum radius for tangential feedrate adaptation 1: — Fig. 11.1: Programming the tangential feed rate.

A new programmed minimum radius will be considered with the next relevant motion block.
The declaration of the minimum radius is optional. The tangential feed rate adaptation also work if #SET TANGFEED RMIN is not programmed or the radius is set to zero.

Programming example

(Contour with TRC and tangential feedrate adaptation)
N10 V.G.WZR=5 
N20 #SET TANGFEED RMIN [3] (Set minimum radius rmin to 3mm)
N30 G41 G01 X0 Y20 G11 F600 (Selection of TRC and feedrate adaptation)
N40 X20 Y20 
N50 G03 X40 R10 (Feedrate adaptation)
N60 G01 Y40 
N70 G02 X44 R2 (No feedrate adaptation à rprg < rmin)
N80 G01 Y20 
N20 #SET TANGFEED RMIN [5] (Set new minimum radius rmin to 5mm)
N90 G03 X57 R4 (No feedrate adaptation à rprg < rmin)
N100 G01 Y50 
N110 X60 G40 G10 (Deselection of TRC and feedrate adaptation)
N120 X0 Y0 
N999 M30