HAAS VF1 retrofit

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03 Nov 2014 07:29 - 03 Nov 2014 07:40 #52705 by akb1212
Replied by akb1212 on topic HAAS VF1 retrofit
I have to say I agree with JR1050, Camsoft isn't going to make this particularly much easier. It's a lot more expensive as well (in the thousands of $). They even charge you an annual support fee. The technical support is good, but not that much better then what you get here for LinuxCNC for free! That is really saying most about the support here though, because they are both quite good. But only LinucCNC provide it for free!

You are also bound to particular hardware platform, Galil controllers, that are quite ok, but about 10 fold the price of a standard Mesa setup. And to be honest the Mesa setup is more configurable and expandable. Camsoft won't work with Mesa hardware (which is hobby use only in their words.... I asked them if they would consider supporting it...)

And the GUI looks like it's made on an Amiga in the 1990's!!!! At least the one you get with the package. The only other alternative is to make your own. Probably almost as much work to do that with their software as with LinuxCNC. But with LinuxCNC you get access to Gmoccapy and other advanced GUI's ready made. There are no user made GUI's available for Camsoft.

On a purely technical note, the complicated task of making an ATC work is one of the more challenging things to do when retrofitting a machine like this. This will be complicated no matter what control system you choose. I know since I'm trying to do the same thing with a Maho MH600E from 1990.

I haven't decided what approach I'm going to go for yet as I'm working on other parts of it for now (PID tuning and mechanical restoration to get my axes moving). But given all the other functions I need to control on my machine, lubrication amongst them I figure I might as well go for ladder logic. I don't have the programming skills to do it in C (I did learn it once about 20 years ago in colleague, and don't fancy revisiting it.... if I don't have to at least).
As I see it the safety functions when things fail and what happens when it fails is the important part to get right. And I don't feel confident in fault finding and debugging in C.

Ladder programming is kind of more hands on, and you can follow what happens in simulations. And I did attend a course that had a fair amount of ladder programming in it at work not that long ago. BTW, the teacher on this course told us that as a rule of thumb 90% of the code will be for the safety and error handling, the rest will be the normal program. And the amount of work involved with the safety system will probably take at least 90% of the time spent testing as well...... this was coming from a man who had been in to PLC programming professionally for many years, so I take his word for it.

I don't think this will apply for ladder logic only though..... the need for safety and fault tolerance is the same no matter what programming language you choose. And debugging safety routines in C isn't something I think I will feel comfortable with.

Is there examples of things like this done in G-code for us to look at somewhere? It would be interesting to see and compare with ladder.

sspeed33317, can you tell us where you found the ladder logic to do the indexing with only zero count and pocket sensor? My ATC is built like that, so it would be of value to me to see that. As I guess others also might be interested.

Anders
Last edit: 03 Nov 2014 07:40 by akb1212.

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03 Nov 2014 10:47 #52710 by sspeed33317
Replied by sspeed33317 on topic HAAS VF1 retrofit
My machine project is on hold for now, unfortunately I ended up spending a bunch of $$ moving
last month and rent is already due for November so I need some catch up time.

Taking a lot longer then I wanted too, I was hoping to have it running by now but $$ is always a problem.

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10 Feb 2015 15:40 #55852 by anarchos
Replied by anarchos on topic HAAS VF1 retrofit
Any updates, sspeed? There's a VF1 and a VF3 with no controls up for sale locally for pretty cheap..

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13 Feb 2015 21:41 #55948 by sspeed33317
Replied by sspeed33317 on topic HAAS VF1 retrofit
No progress lately, was having a hard time tuning the amplifiers to the existing HAAS dc servo motors, so I am going to replace all axis with
new digital AC servos but project is on hold for a while, renting this shop I have is costing too much and I am now trying to
round up some money to build a garage at my own place so I can move everything home.

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25 Apr 2018 18:50 #109606 by aventtini
Replied by aventtini on topic HAAS VF1 retrofit
i have a similar project can you share the schematics of the machine i have some problems whit identification of cables.

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29 Jul 2018 08:57 #115049 by sspeed33317
Replied by sspeed33317 on topic HAAS VF1 retrofit
I dont have any schematics , used to be able to find diagrams on the DIY Haas website, not sure if it still exists.

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29 Jul 2018 09:00 #115050 by sspeed33317
Replied by sspeed33317 on topic HAAS VF1 retrofit
After a few years I will be getting back to work on the project soon..

Hopefully will be closing on a house here in a couple weeks and will have a nice hangar sized workshop to set up in...

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07 Jun 2019 12:51 #136200 by haasme
Replied by haasme on topic HAAS VF1 retrofit
Hi,
Any update on this project? I have a VF3 (1994) and the mocon make some trouble, eventually I will be forced to make a retrofit like solution.. I hope somehow that I will be able to keep as much as possible from original hardware. I need just the computer part to be replaced..

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07 Jun 2019 16:45 #136224 by pl7i92
Replied by pl7i92 on topic HAAS VF1 retrofit
there are "new" haas Vf3 boards all over you can simply replace the main board if you trouble
also haas provides some nice upgreats for real low money around 800USD
it is money ok but what you get is more then you can expect around 120 suroutines
on mashine part generation ....
call a dealer around you
The following user(s) said Thank You: haasme

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