On 26/12/2017 at 1:23 AM, coolvdub62 said:

That looks like a lot of mass on such a small machine. You might want to hire somebody with a laser inferomoter that knows how to use it to check the alignment between the two ends of rotation. The set up looks like it could have many potential problem areas.

I think you are right that it is to much weight on this small machine, but I cannot explain it to my boss. I will check the alignment of the two ends of rotation, align everything again and take it from there.

19 hours ago, nickbe10 said:

Can you post a picture?

This is often the problem with off the shelf 4 axis systems. You say the "bearings" are in line. Is that the Head and Tailstock/A-frame bearings, or the "bearings" on the trunion (they need to be in line to each other)? If ALL of the above are good and aligned properly are the trunion surfaces parallel and perpendicular to ALL three machine axis? Don't just check at A0, sweep the faces at A0, A90, A180 and A270.

How about your fixture, is it parallel and perpendicular? Anyone of the components being off will throw a spanner in the works......

I always prefer to make my own trunion/beam and leave extra stock on the surfaces. Then with everything aligned I qualify the trunion/beam surfaces to the spindle. then I machine my bolt pattern (or whatever holding system I am using). This assures everything is "square" to the spindle. Have you got enough material on the trunion to requalify it? Don't jump in here, you must confirm that ALL of the above components are in line and square first, or you could make things worse. Time checking now will save 10x (make that 100x) the number of hours of frustration and heartache later. Consult the dealer. Maybe they expect you to qualify the trunion? If it is brand new, get the dealer in to have a look (make sure it isn't your tooling/fixturing first to avoid embarrassment).

And all this assumes the table is flat and square to the spindle. It would be unusual for it not to be, but not beyond the realms of possibility. If there is a subplate check that it is flat and square to the spindle. I'm not usually happy unless everything is square ad parallel </=.001 over 18" - 24". This is achievable with care

I have enough stock on the on my baseplate of the trunion to make parallel to the Z axis, and I have done that and my fixture is parallel and perpendicular. If I check the axis in A0, A90, A270 I have a total error of 0,07mm which is way to much.

My problem is that I need to make a rod/shaft that I can put through the center of the bearings ( bearings on the trunion) to check if they are in line with each other. Because the machine can't reach.

I just assumed that they were, but I can see from all of your comments that my problem is probably there.

We bought the machine directly from Fanuc, and you would not believe the kind of trouble we have had. The service are close to non existing so we have been forced to consult others to help us out because we just couldn't wait for Fanuc. Sometimes there has been over 1month wait on a technician. 

Hi Guys

I have a brand new Fanuc Robodrill with a Fanuc Trunnion factory installed.
My problem is when I tilt the table. 
In 0° I align it perfectly, but when I tilt in 90° and 270° and facemilling it, it does not make those sides parallel to each other.
I believe it is some adjustment of the table that is necessary. The 2 points in the bearings of the trunnion is in alignment, so it must be the baseplate or something of the table itself.
How is right way to make a complete alignment of the trunnion? 

Jacob

22 hours ago, jeff said:

You don't have to do that. I never do. Check your settings.

That sounds exactly what i'm looking for, but maybe i have been staring  myself blind in Mastercam settings, because i can't seem to figure this one out.

Is there any possible way you can tell me how to do that please?

22 hours ago, Colin Gilchrist said:

I was just pointing out some of the Parameters on the Fanuc 31i B control, that allow you to tweak the "T" code settings. I can't give you an example of changing the settings, because this is always dependent on the Machine Tool Builder. As Newbeee mentioned, you'll need to get Robodrill to make the modifications, and they may just say "No", depending on how they've built the PLC ladder and configured the HMI.

Ok thank you 

4 hours ago, Colin Gilchrist said:

Program your job as "normal", selecting your existing Tool from your Libraries. You can either:

1. Set the option in the Machine Group Properties > Tools Tab, to "Assign Tool Numbers Sequentially",
2. Or, program as normal, then Select All Operations > Right Click > Renumber Tools

The defaults for having Tool # = Pot # on the machine, can often be "customized" by the Machine Tool Builder, but it will cost you some money. Typically the "M06" tool change G-code calls an internal Macro Program, and that program can be customized. The same goes for the Tool Registers.

According to my Fanuc 31i "B", manual (B-64484EN), the tool code can be up to 8 digits.

 

 

 

Hi Colin thank you for your reply

I am aware of those 2 options in Mastercam and i am currently using the 1. example that you gave.

I am actually thinking of asking Fanuc to customize the M06 if possible and the Tool registers.

I am not sure that i undertsand your example of this solution:

The maximum number of digits of a T code can be specified by parameter No. 3032 as '1' to '8'.

When parameter No. 5028 is set to '0', the number of digits used to specify the offset number in a T code depends on the number of tool offsets.

When the number of tool offsets is 1 to 9:           Lower-order one digit

When the number of tool offsets is 10 to 99:       Lower-order two digits

When the number of tool offsets is 100 to 999:   Lower-order three digits

Is it possible for you to make a small example?

In my manual i can only see that you can make 3 digit tool numbers only if you asign them to tool groups when using the tool life management function.

7 hours ago, Codeworx said:

On Fanuc the machine can only see tool numbers equal to the carousel. Robodrill 1-21, or 1-14 on eco model.

You could use any number over 21 as the offset number(your existing tool library) but the Tool call number/position in machine will have to be 1-21.

IE:

T1M6 (Machine pocket 1)

G43 H50 (length offset "tool" 50)

G42 D50 (Dim offset "tool" 50)

Thank you for your reply.

Yes that is properly the way i am going to do it. The problem here as I see it, is that you have to manually edit the program to put in the D and H numbers for each tool. I cannot see there is any possible way of making a post capable of doing that for you = Chance of human error....

11 minutes ago, JParis said:

What version of Mastercam?

 

Moved to the Industrial forum as this is a Mastercam question, not so much a machine one

Mastercam 2017

Hi guys

I'm new to the fanuc controller, but have 15-20 years of experience with Siemens and Heidenhain.
My workplace bought a brand new Robodrill with 21 tool holders.
On both Heidenhain and Siemens you can have e.g. T50 in holder nr.1. and you just call T50, but on the Fanuc I can only have T1 in holder nr.1 etc.
Is there any way to get about this, because we have a rather comprehensive tool library already setup in MasterCam and we are used to identify our tools by their respective number?

On Heidenhain/Siemens you save the length etc. with the tool number.
On Fanuc you save it under a H-number.
Do you save the tools used, along with a tool offset list with every program, like a project? If so, how is this done?

Regards Jacob
 

3 hours ago, C^Millman said:

Sounds like the option for G53.1 was not purchased and you got an alarm when you tired to run it? Ask the builder to supply you with a proven program for that machine and then use it to to come up with the output you need. G53,1 is more for 5 Axis machine and may not needed on a 4th, but is used more with G68.2 like in your example. Again every machine is different and where the builder should be able to help you sort this out with a phone call. Normally G53.1 is on a line by itself without the P1 output.

You say it should be A axis and the 4th Axis is along X and not Y axis correct? I thought I was X for J was for Y and K was for Z for Axis rotations. Yes I see J57. which tells me the MMD is setup for rotation along the Y axis not the X which confuses me since you said it should be A axis which would be along the X Axis for rotation and I would expect to see I57. not J57.

Thank you very much.

Yes the 4th axis i along X and it makes perfectly sense that it should be I57 instead. We have had some issues with the builder because they're very very slow  to reply when contacted. Fanuc will send a technician tuesday because they suspect that the parameters on the machine is not set up properly.

Hi Guys

Anyone in here with programming experience on Fanuc Robodrill with 4th axis? It's an 31i B5 control.

I'm new to programming on Fanuc and i'm trying to get the MasterCam Post Processor working.

I've made a simple program with tilted "B" axis in 57degrees. (I know i should be "A" but apperently thats the way Fanuc makes it!)

If I delete G53.1 it works, but isn't it necessary?

Also if you see any other problems in my program please let me know 

Regards

Jacob

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