[CWILLIS1477]

Haas recommends to "limit the post processor to a max inverse speed in G93 mode to 32 degrees per min".

322. Maximum inverse feedrate? 9999.00
323. Minimum inverse feedrate? 0.0

^^^^^^^^^
What value do I change, this block,in the post to achieve this limit?

[BurrMan]

Haas recommends to "limit the post processor to a max inverse speed in G93 mode to 32 degrees per min".

322. Maximum inverse feedrate? 9999.00
323. Minimum inverse feedrate? 0.0

^^^^^^^^^
What value do I change, this block,in the post to achieve this limit?

You would use a conversion. It would entail converting degrees to radians then running a formula that converts that to inches. But i think you might want to do this with your haas guy, because there may be more things to consider because you have 5 axis, and there may be more axis involved in particular movements, which would require a conversion on other values of axis moves and then setting both lower to acheive some type of "blended average" which then turns out to be the actual rotation speed limit...

[BurrMan]

So for the basic value, you would use the maximum radius the rotation will be limited at. On your machine, I don't know if this is calculated from surface material, or from the highest point at which the tool position is affecting the rotation speed.. Lets assume it's the stock's rotation value.

The radius of the "LARGEST" piece you would ever load is needed (Otherwise it might be the highest value the tool may retract away from rotation axis. This question is for HAAS or manual)


Lets assume it is a 20 inch diameter:
limit 32 degrees per minute.
convert to radians = 32 * pi/180 = 0.5585048888888889
to inches = 0.5585048888888889 * 10 = 5.585048888888889
back to full linear inches of arc = 5.585048888888889 * 114.5916 = 639.999688256
Set limit in post to 700..................

The other thing I'm not sure of is if the gcode actually needs to be the degree per minute. In other words, is the controller itself looking for a degree per minute value, as opposed to what I just gave as the inch per minute value.

[CWILLIS1477]

T1 M06
G54
G90 X-0.0035 Y-5.2927 B0.027 A77.179
S7500 M03
G43 H13 D0 Z2.1489
A77.179
B0.027
Z1.7489
G01 Z1.3489 F10.
Y-5.2925 Z1.3487
Y-5.2905 Z1.3475
G93 X0.0019 Y-4.8332 Z1.6003 B-0.014 A74.319 F446.3191
X-0.0062 Y-4.3633 Z1.8302 B0.048 A71.454 F449.3458
X-0.0036 Y-4.1316 Z1.933 B0.028 A70.068 F700.
X-0.0039 Y-1.9354 Z2.6173 B0.03 A57.196 F2.1736
X0.0011 Y-1.6272 Z2.6658 B-0.008 A55.633 F153.6742
X-0.0044 Y-1.107 Z2.7329 B0.034 A52.821 F232.058
X-0.0024 Y-0.7483 Z2.7645 B0.018 A50.869 F466.4267
X-0.0023 Y-0.358 Z2.785 B0.017 A48.743 F467.7947
X-0.0102 Y0.0162 Z2.791 B0.078 A46.711 F468.6785
X-0.004 Y0.373 Z2.7845 B0.031 A44.776 F469.0615
X0.0049 Y0.7113 Z2.7671 B-0.037 A42.942 F469.0842
X-0.0075 Y1.0307 Z2.7408 B0.058 A41.211 F468.8141
X-0.0145 Y1.331 Z2.7072 B0.11 A39.581 F468.2584
X-0.0009 Y1.6195 Z2.6668 B0.007 A38.013 F467.6572
X0.009 Y1.9177 Z2.6165 B-0.069 A36.382 F467.1927
X-0.016 Y2.2271 Z2.5549 B0.122 A34.679 F467.1862
X-0.0144 Y2.5483 Z2.4806 B0.109 A32.896 F467.2071
X0.0127 Y2.8811 Z2.3922 B-0.096 A31.031 F467.7767
X0.0009 Y3.2258 Z2.2881 B-0.007 A29.078 F468.2201
X-0.0272 Y3.5819 Z2.1667 B0.206 A27.035 F469.0072
X-0.0151 Y3.9492 Z2.0262 B0.115 A24.898 F469.6017
X0.0098 Y4.3085 Z1.8732 B-0.074 A22.775 F470.2607
X-0.0106 Y4.6181 Z1.7292 B0.08 A20.925 F470.3299
X-0.0198 Y5.0886 Z1.4888 B0.149 A18.088 F234.8572
X-0.0121 Y5.4602 Z1.2918 B0.091 A15.945 F123.1452
G94 Z1.6918 F118.1102
G00 Z2.0918
M05
G91 G28 Z0.
G91 G28 X0.0 Y0.0 A0.0 B0.0
G90
T1 M06
M02



When I changed 322. Maximum inverse feedrate? 9999.00 to 700.00. It actually limits the F# (in G93 mode) to 700. I assume that it's in degrees per min

[BurrMan]

Maybe we can get Al to comment. I made some assumptions in my last post that may not be correct.

[EDIT] I also made an error in my conversion post stating "700" .... It should have said "640", as a rounded number of the result... I don't know how I rounded 639.xxxxxxxxxxx to 700.... [EDIT]