Coolant spigot position Haas VF-0

[Alex VF]

Hello Everybody,

We own a Haas VF-0 (1995 model) and a little problem is that the position of the coolant spigot cannot be adjusted when the machine is in operation. We also own a Haas VF-1 (1995 model) and the machine does not have this problem. Is there a way to make the Haas VF-0 to adjust the coolant spigot position during operation? Maybe do we have to change a setting?

Thank you in advance.

[HelicopterJohn]

Hi Alex,

We own a Haas VF-0 (1995 model) and a little problem is that the position of the coolant spigot cannot be adjusted when the machine is in operation.

Do you mean that the manual operation of the coolant up and coolant down buttons don't function or do you mean the GCode will not move the coolant nozzle up and down as the program runs?

Is this a problem that just started or has this never operated properly?

The reason I ask is that I had an issue with my PCOOL system that was not working properly i.e. not stopping at the correct postion and oscillating back and forth and alarming out. As it turns out the small micro switch that runs on the ratchet wheel was defective. If that is the case I can give you some information that may help.

I have a 2007 TM-1P with a 20 position PCOOL system and my software is surely different from yours.

You may want to look at setting 32 Coolant Override and make sure both machines are set the same.

There is another setting that tell the machine how many positions your PCOOL unit has. The newer ones have about 32 positions. I am not at my machine at the moment so I can't tell you exactly where to find that one and your software may be different as your machine is older than mine.

[Alex VF]

Hi John,

Thank you very much for your interest. About the coolant spigot, I mean that when the machine is running a program I cannot move up or down the coolant spigot (the machine works this way since we bought it 9 months ago). To move the coolant spigot I have to stop the program (not feed hold but to stop it completely) and then I can adjust the position of the coolant spigot. This is a problem because when I place a new tool I have to find the right coolant position before I start the program because during the program I cannot do anything. On the VF-1 I can adjust the position of the coolant spigot when the machine is operating and store the new coolant position.

Another little problem on the VF-0 is that when I am searching for the right position of the coolant spigot for a certain tool, when I press the up or down button the coolant spigot goes first to the highest position and then moves up or down.

Thank you once again.

Alex

[dougtyler]

If the spigot is going all the way to the home position when you increment it, then the micro switch that John was talking about, is most likely the problem. Mine started out doing the same thing. going to home position, then positioning to the correct position, but after a while the switch finally gave up completely and it wouldn't position at all.

[HelicopterJohn]

Hi Alex,

Here is a link to what Doug is talking about.

There are several posts about this issue. Do a search on the HAAS Mills Forum for PCOOL.

http://www.cnczone.com/forums/showth...ighlight=pcool

[Alex VF]

Hi guys,

Thank you for your input. I will have a look at it and let you know. Do you know whether this problem also has to do with the fact that the position of the coolant spigot cannot be changed when the machine is in operation?

Thank you.

[Pinball]

Originally Posted by Alex VF Hi guys, Thank you for your input. I will have a look at it and let you know. Do you know whether this problem also has to do with the fact that the position of the coolant spigot cannot be changed when the machine is in operation? Thank you.

Hi i have had a reed of your problem and would just like to ask,
Are you setting the coolant position on the tool setting page for each tool you are using?
When you set the 'tool lenght' geom. there is also a coolant position which you can change, this will then move the coolant pipe to the correct position for easch tool that you are using.
I am not at my vf-0 right now but this is how i set mine up so that when a tool change is done the coolant resets to the position that i placed in the tool setting page of the control.
Hope this helps feel free to email me as i run the VF-0 all the time.

[Alex VF]

Hi Pinball,

Thank you for your interest. When I place a new tool I also adjust and set the coolant position of the tool on the tool setting page. Sometimes I forget to adjust the coolant position and when the machine is running I cannot adjust the coolant position and enter the position (by F2 button) on the tool setting page.

On the VF-1 even if I do not adjust the coolant position before running the program I can always adjust the coolant position when the machine is running and then set the coolant position value on the tool setting page. Sometimes if you adjust the position before running the program you find out that when the program is running the position you have set is not ideal and you want to change it but on the VF-0 that's not possible.

Do you have the same problem?

[Pinball]

Originally Posted by Alex VF Hi Pinball, Thank you for your interest. When I place a new tool I also adjust and set the coolant position of the tool on the tool setting page. Sometimes I forget to adjust the coolant position and when the machine is running I cannot adjust the coolant position and enter the position (by F2 button) on the tool setting page. On the VF-1 even if I do not adjust the coolant position before running the program I can always adjust the coolant position when the machine is running and then set the coolant position value on the tool setting page. Sometimes if you adjust the position before running the program you find out that when the program is running the position you have set is not ideal and you want to change it but on the VF-0 that's not possible. Do you have the same problem?

Ok, i see where you are going with this now. on your VF-1 you are able to re-position your coolant when you are running in full auto and once you find the correct position for the tool you are able to change this on the tool setting page.

On the VF-0 you can also do this but this is done a long winded way so please bare with me as i am doing this from home and not infront of the VF-0

First thing i do when i start a program to run in full auto is 'single block' the first run to make sure all is as i like it, during this first run i adjust my coolant positions as i go.
once a tool is loaded into the spindle and the coolant turns on i adjust the coolant position with the 'Up' and 'Down' butons until i have it in the correct place i then look at the command screen to see what the number is for the coolant 1 - 7. with the maction still on single block i go the the tool setting page to change the coolant position.
eg.
If the coolant is programed at say position 5 but i need it on position 2 what i do is highlight the coolant position number with the cursor keys and i would type '-3' then input this would change the 'Programed' position of the coolant from 5 down to 2.

I would do this for all tools i am using until i have done all tools.

I'm not sure if this method would work for you are my cycle times are only between30 sec and 15 minutes so doing my first run on single block is not a problem but if you are looking at cycle times of much higher then maybe this would not help.

I hope that is has helped in someway, and please let me know how you get on.

[dmold]

εχω την λυση για το προβλημα σου!!
πουλα το ριμαδι και παρε ενα Bridgeport.

Dmold

[ken70ss396@yaho]

Try entering the new coolant position by pressing the value ,then F1.

Originally Posted by Alex VF Hi Pinball, Thank you for your interest. When I place a new tool I also adjust and set the coolant position of the tool on the tool setting page. Sometimes I forget to adjust the coolant position and when the machine is running I cannot adjust the coolant position and enter the position (by F2 button) on the tool setting page. On the VF-1 even if I do not adjust the coolant position before running the program I can always adjust the coolant position when the machine is running and then set the coolant position value on the tool setting page. Sometimes if you adjust the position before running the program you find out that when the program is running the position you have set is not ideal and you want to change it but on the VF-0 that's not possible. Do you have the same problem?