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ALARM 555 on Haas VF4 SS with TR160 Trunnion.


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Hi everyone, I am receiving a radius too large error(alarm 555) from my machine's controller, this occurs during a transformed toolpath of a pocket which ran fine on the previous feature. Do you know why the transformed version would be causing the controller to alarm out for a radius too large? My Zip2Go is like 20MB or more so I can setup a google drive link or something if your need it.

Here is the G code that ran on the machine with no issue:

(POCKETS RAMP)
B47.529 A-22.383
X-.0055 Y-.5844
Z5.7174
G1 Z5.6774 F25.
G2 Z5.6383 I-.1105 J.0433 F4.4
X-.2346 Y-.5346 Z5.6207 I-.1105 J.0433
G1 X-.1354 Y-.54
G3 X-.1118 Y-.566 I.739 J.6469
G1 X.2393 Y-.2469
X.2162 Y-.2214
X-.1354 Y-.54
X-.1702 Y-.5378
G3 X-.1129 Y-.6008 I.7738 J.6447
G1 X.2746 Y-.2487
X.2179 Y-.1861
X-.1702 Y-.5378
X-.2385 Y-.5322
G3 X-.1141 Y-.6693 I.842 J.6391
G1 X.3451 Y-.2521
X.2214 Y-.1155
X-.2385 Y-.5322
X-.3053 Y-.5253
G3 X-.1136 Y-.7365 I.9089 J.6322
G1 X.4157 Y-.2555
X.2249 Y-.0448
X-.3053 Y-.5253
G0 Z5.6807

Translated toolpath with issue:

(POCKETS RAMP)
B33.17 A-18.106
X.0307 Y-.5002 Z7.0299
Z5.7473
G1 Z5.7073 F25.
G2 X.0306 Z5.6682 I-.1178 J.0143 F4.4
X-.2036 Y-.5093 Z5.6506 I-.1178 J.0143
G1 X-.1062 Y-.4897
G3 X-.0769 Y-.509 I.5539 J.8111
G1 X.1834 Y-.1123
X.1546 Y-.0934
X-.1062 Y-.4897
X-.1404 Y-.4962
G3 X-.0693 Y-.5429 I.5881 J.8176
G1 X.218 Y-.1052
X.1475 Y-.0587
X-.1404 Y-.4962
X-.2079 Y-.5079
G3 X-.0533 Y-.6096 I.6556 J.8292
G1 X.2871 Y-.0909
X.1332 Y.0105
X-.2079 Y-.5079
X-.2744 Y-.5179
G3 X-.036 Y-.6745 I.7221 J.8393
G1 X.3563 Y-.0766
X.1189 Y.0798
X-.2744 Y-.5179
G0 Z5.7106

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The part file has some sensitive information so I will have to remove the part before making a zip2go that is safe to share. Not sure how easy removing the part without effecting the code will be. Also I am asking this here because I am dead in the water right now waiting for support and my recently purchased 5th Axis Post and MachSim to fix everything for me. Does anyone know where the Haas setting regarding max radius is?

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where is the alarm occurring... on the ramp in move??

I ran both these files through CimcoEdit backplot and nothing jumps out at me

They appear to be identical other than their different orientation is space

I do have a trouble shooting suggestion

Your ramp in moves are doing full 360° helical arcs in one block of code.

Try changing your arc settings in the  control def to "break ay 180°"

or for a quick and dirty test, turn off  helical ramps on the filter page... or change your ramp in motion to a linear ramp.

Neither of these are fixes for the problem, but may get the job running

 

something else I noticed

these are the two ramp in moves 

the first one is the one that runs

X-.0055 Y-.5844
Z5.7174
G1 Z5.6774 F25.
G2 Z5.6383 I-.1105 J.0433 F4.4                  <---------- this is a full 360° helical ramp move... no X or Y output 
X-.2346 Y-.5346 Z5.6207 I-.1105 J.0433
G1 X-.1354 Y-.54


X.0307 Y-.5002 Z7.0299
Z5.7473
G1 Z5.7073 F25.
G2 X.0306 Z5.6682 I-.1178 J.0143 F4.4   <--------- note the X.0306 output... .0001 different from the starting point
X-.2036 Y-.5093 Z5.6506 I-.1178 J.0143
G1 X-.1062 Y-.4897

maybe the Haas control doesn't like it.??

 

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This is a screen shot of the Control Def Arc page of our Hass VF6-TR210 trunnion post.

It is set exactly as it was delivered and we've not had any issues with it.

It implies that I'm on the wrong track, but I don't know how the version of your Haas control or if anyone has

been messing with the arc settings in the control. I think I'd still try unchecking "Allow 360° arcs" and see what happens

 

Hass Vf6-TR210.jpg

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X.0307 Y-.5002 Z7.0299
Z5.7473
G1 Z5.7073 F25.
G2 X.0306 Z5.6682 I-.1178 J.0143 F4.4   <--------- note the X.0306 output... .0001 different from the starting point
X-.2036 Y-.5093 Z5.6506 I-.1178 J.0143
G1 X-.1062 Y-.4897

maybe the Haas control doesn't like it.??

Yes so I have had starting points one tenth off from the next move the controller does not like it, I am not sure where I can change that because it has happened before where MCAM puts out something .0001 off from it's last position and it fails, even though most gcode editors or online nc things still plot it fine...Is there some tolerance setting in the haas for that? I think I found the setting for adjusting max radius but im even less sure now that that's my problem....I am going to try your linear ramp idea to get this part off the machine but yeah I really need to adress this issue. I might try the breaking arcs at 180 as well after. Thank you very much Gcode!

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This is the default tolerance page for out Hass trunion post

To me the Min Arc Radius being set at .0001 makes no sense... but I don't think that's what it really means

I had it set bigger on another post and it caused trouble, when I moved it back to .0001 the trouble went away

 

 

 

 

tolerance page.jpg

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So Gcode your my savior today!, Instead of trying the linear ramp 1st, I started to think about the .0001 off X value you found. as I stated before the problem toolpath was a translated one. I noticed when I translated it Mastecam was using a new plane it had created from the original toolpath. Instead of the one I had created just for the other feature and commanded in the translate options to move to. It was using Original Plane-1 that it created. I decided to change the tplane and cplane to the one I had planned on it using and voila no more .0001 difference....But here is the odd part, almost every other tranlated path that used mastercams auto generated planes worked only like 3 out of 16 gave me issues....So there are still some deeper questions perhaps those tolerance settings your sharing may shed light also as I stated before anyday now I should recieve my new 5th axis post made for that machine and trunnion and I can't wait to see what comes with Mach Sim...$xxxx my company spent to get this because I said it was necessary to do the job, but here I am about to finish the part limping through....OP1 on the part already has some weird stuttering issue from a swarf pass. I found out that HAAS doesn't have HSS enabled so now I get to try to justify why we need to drop another $3200 on that with Haas....All while I have another programmer who uses Gibbs here and Management that has a weird obsession with thinking Gibbs is the fastest most efficient CAM software there is....It has been an uphill battle I was lucky to get them to get back on Maintenance. Sorry had to vent a bit, I still love Mastercam btw.

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55 minutes ago, [email protected] said:

OP1 on the part already has some weird stuttering issue from a swarf pass.

maybe someone with more experience doing 5X paths of a Haas can make some suggestions to get a smoother toolpath

Is this a older VF4 or a newer model with the Next Gen Control

 

https://youtu.be/3fBBxo29-es

 

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