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The SCM saga continues part 2

3/29/19       
Jeff

So weeks and months are passing and my cnc is still basically a large boat anchor.
SCM has been able to get the machine to cut but it appears that it won’t recognize the drill head. The other issue is the rail/bar on the back of the machine won’t go down when you engage the vacuum hold down.
When you try to run a program with the drill head, it moves the drill head into position and then it stops and a code comes up, plc17 Head 2 not in position.
I was wondering if anyone else has had this issue and how it was resolved.
I really need to get this working, thanks for any help or ideas.

3/30/19       #2: The SCM saga continues part 2 ...
Rob Young Member

Website: nutekmachinery.com

Jeff- you've written that the drill head moves into position, does this mean the air cylinder has lowered the drill head down to working position? If so it sounds like the reed switch in the cylinder may not be made. If the head is indeed all the way down you may need to adjust the position of the reed switch. Be cautious when making adjustments like this. When a machine is in the automatic mode providing a missing input, in some cases, will allow the machine to progress in the program. An operator died at a factory I worked at due to those circumstances.

If the cylinder is not activated you'll need to determine if the controller is sending the output to the valve to activate the head dropping.

3/30/19       #3: The SCM saga continues part 2 ...
Jeff

Rob,
Thanks for the info, the drill head moves into position on the x and y axis, but does not move on the z. It then stops and throws the plc17 code. When you hit a safety switch or step in the light barrier it lets out a huge beltch of air??
Thanks again.

3/30/19       #4: The SCM saga continues part 2 ...
cabinetmaker

Seems to me you need to reload the operating software. The “fixed cycles” maybe not fully loaded.

We went through this when we had a problem with our operating software and it had to be reloaded as the fixed cycles did not fully “take” Boring block would come to the drilling point but not descend.

4/1/19       #5: The SCM saga continues part 2 ...
Chris

Jeff,

You never said what model you have. If you go into MDI can you drop any of the boring spindles? The way the Scm machines works is all the calibrations are based of the #1 boring spindle.

4/2/19       #6: The SCM saga continues part 2 ...
Jeff

Chris,
The machine is a Pratix 48 and the individual drills can be dropped down manually through MDI.
Thanks

4/2/19       #7: The SCM saga continues part 2 ...
cabinetmaker

What are the length of the drills in relation to each other in the tool library ?

Go through the basics of calibration, sorting out lengths, diameter, symmetrical behavior

If it’s coming to the area to drill are you sure it’s not a fixed cycles issue ?

What does scmi state your error means ?

4/4/19       #8: The SCM saga continues part 2 ...
Matt

Jeff, our machine isn't even remotely the same as your SCM but we had a very similar situation happen. Our machine runs on a PC (WinCNC).

I'm sure it's not a 1:1 comparison of yours, but here is what we had happen.

Machine would do any cuts/holes in a nested sheet of cabinets up to the point that it needed to do 5mm drills. It would go pick up the 5mm bit and then abort the program with an error that said "soft limit Z".

If we ran sheets that had no 5mm drill, things cut without error.

After a few hours of head scratching, we figured out the problem was due to operator error by accidentally clicking "Calibrate Z" instead of "Calibrate Tool". He had just installed a new 5mm bit and was trying to calibrate the machine for the new bit.

On our machine, that mistake recalibrated the 5mm drill to think that the top of the spoilboard was basically the very top of the Z travel, since that's where the spindle was sitting when he hit the button and was holding tool 5.

It didn't effect any of the other tools.

4/11/19       #9: The SCM saga continues part 2 ...
CM

Jeff,

You get the cnc going yet? Your first post was a couple months ago, that is unbelievable that SCM can’t get it working.
A guy that worked for us years ago bought a SCM cnc and he had some issues as well and SCM had no clue, they were pathetic beyond words.
A tech from Homag ended up fixing his machine.

They have no idea that businesses need their equipment to STAY in business. They sit in their office collecting their hourly wage and have absolutely no concept of how the industry works. The field techs come to the shops with their briefcase full of hand tools and a multimeter and charge you north of $100 per hour to fix your machine. I just don’t get it. The shop they are working at has probably a few hundred thousand dollars of equipment, and some shops a lot more than that and they have a hourly rate less than the tech. Blows my mind.

There was another company selling Casadei machines (Another SCM company) and they had the same problem, no one has a clue how to fix them so a bunch of machines being used as dust collectors.

Anyways just my two cents worth. I feel for you.

4/15/19       #10: The SCM saga continues part 2 ...
Jeff

Cm,

Unfortunately nothing has changed, apparently no one knows how to fix it.

I will never buy anything SCM ever again.


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