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WET Re: [CAD-CAM-EDM-DRO] Damage to CNC machines

 

 

Hi Kpfi & all:

     One of the things I have found to watch is how much oil isin the coolent.

If a way line cracks or breaks the collent will have a much higher oil content

before long.  Check to see if your way oiler is way down or using a lot more

oil the normal.  This is one of the problems I have came on>

                              Shut down in Michigan USA

                                      Bill Thomas

On 2020-09-22 05:26, Kofi & Mimi in Ghana via groups.io wrote:

Hi all, I have realized over the years that  no matter how fast and efficient CNC machines is, they’re not infallible. They develop problems and need maintenance just like any other type of machine or tool. And like any other tool, there are certain things you can do that might inadvertently damage these machines. Unfortunately for me, I have focused more on the definite steps you can take to keep them in good working order.
Can anyone share with me some steps that lead to damage.
Thank you
Kofi

 

Carrying for the "iron" on CNC machines is identical to manual machines. (keep oil on the ways and chips off) CNC machines generally have way covers with wipers at the ends. Maintenance to these wipers and covers will keep chips from building up in places where they may damage wires, switches, flexible cable ways and the ways themselves.
If way covers become worn, warped or dented, they are allowing chips in where the shouldn't be.
I own several old CNC machines. One was built in 1985. The iron is still in pretty good shape, she is capable of holding turn diameters of .0005 easily. However, the electronics are finicky. They are sensitive to temperature. I have to keep an extra fan on the power supply.
Occasionally I need to replace a cable. They are repeatedly flexed and exposed to coolant. Most coolants are harsh on plastics and rubber.
Choose your medicine, either run new machines and trade them in before they become trouble.
Or, get to know a good technician.
I do as much repairing myself, but there are times I can't figure it out and need to hire a tech. Usually at about $150/hour plus travel expenses.
Fanuc has outstanding support, as does most major manufacturers. I've spent hours on the phone with Fanuc, Mori Seiki hotline, Ellison Technologies, and Milltronics.
I have the good fortune of having both manual and CNC machines at my disposal.

Denis


On Tue, Sep 22, 2020 at 9:31 AM, idea2man
<wthomas@...> wrote:
 

Hi Kpfi & all:

     One of the things I have found to watch is how much oil isin the coolent.

If a way line cracks or breaks the collent will have a much higher oil content

before long.  Check to see if your way oiler is way down or using a lot more

oil the normal.  This is one of the problems I have came on>

                              Shut down in Michigan USA

                                      Bill Thomas

On 2020-09-22 05:26, Kofi & Mimi in Ghana via groups.io wrote:

Hi all, I have realized over the years that  no matter how fast and efficient CNC machines is, they’re not infallible. They develop problems and need maintenance just like any other type of machine or tool. And like any other tool, there are certain things you can do that might inadvertently damage these machines. Unfortunately for me, I have focused more on the definite steps you can take to keep them in good working order.
Can anyone share with me some steps that lead to damage.
Thank you
Kofi

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