[giffpa]

I noticed that PathPilot is blending or rounding (probably in a linear line) as it approaches a plunge and doing the same as it exits a plunge. The first plunge is always okay. However, each plunge after that features some blending upon entry and exit. The amount of blending increases as the difference between the plunge speed and the entry/exit speed becomes greater. The blended path is significantly faster than the intended plunge speed. My question is, is this normal? Is there a way of avoiding such blending when doing a plunge? I have attached some code below that shows this in action. Thanks for your help.

PathPilot's DTG shows each plunge getting shorter of what is intended.

Second plunge: .0119 in. short
Third plunge: .0213 in. short
Fourth plunge: .0331 in. short
Fifth plunge: .0478 in. short

G54 G90 G20 G1 G40 G94 G97 G99
G1 Z10 F10
X0 F5
Z9.8 F.5
X1 F10
Z9.6 F.5
X2 F15
Z9.4 F.5
X3 F20
Z9.2 F.5
X4 F25
Z9 F.5
X5 F30

[PCW_MESA]

I noticed that PathPilot is blending or rounding (probably in a linear line) as it approaches a plunge and doing the same as it exits a plunge. The first plunge is always okay. However, each plunge after that features some blending upon entry and exit. The amount of blending increases as the difference between the plunge speed and the entry/exit speed becomes greater. The blended path is significantly faster than the intended plunge speed. My question is, is this normal? Is there a way of avoiding such blending when doing a plunge? I have attached some code below that shows this in action. Thanks for your help.

PathPilot's DTG shows each plunge getting shorter of what is intended.

Second plunge: .0119 in. short
Third plunge: .0213 in. short
Fourth plunge: .0331 in. short
Fifth plunge: .0478 in. short

G54 G90 G20 G1 G40 G94 G97 G99
G1 Z10 F10
X0 F5
Z9.8 F.5
X1 F10
Z9.6 F.5
X2 F15
Z9.4 F.5
X3 F20
Z9.2 F.5
X4 F25
Z9 F.5
X5 F30

Just guessing you want G61 (disable blending or exact stop mode)

[shred]

Yes the trajectory optimizer can be quite aggressive at rounding corners in some cases. G64 lets you adjust the amount of path blending if complete stops aren't needed.

http://www.cnczone.com/forums/tormac...6-tormach.html