Super Mini Mill - decisions

[behindpropeller]

Originally Posted by Delw Thats very dangerous. the probe is only as good as the machine table is. if you did aerospace or high tolerance work for your customers using the probe on a machine to check your parts would be highly unacceptable.

Why would it be unacceptable? If you have a master mounted on the table and check that with the probe and then check the part and have it dump the numbers off of both parts into an inspection sheet. If the master is correct why would the part be off?

someone said it a few posts ago when talking about the automation in todays world. machine tool builders made it pretty easy for anyone to set up and run a machine, however the people running and setting up the machines have absolutely NO clue what they are doing, we are dumbing people down.

If the technology is there you might as well use it. How come you are not making parts with a manual bridgeport anymore? You got dummed down to using a CNC.

Tim

[HelicopterJohn]

Originally Posted by Geof I don't think you are going to convert me though; I am steadily working on reducing how much stuff I do for the business. I took a five week break this summer when my brother visited and we did some cruising and played golf. I estimate I need another three months to wrap up the projects I have on the go for the business and then I will only be using the home shop for fun. The people running the business may choose to get involved with tool setters but that will be their decision not mine.

If you are talking retirement I can highly recommend it. I have been retired since 2000 and having the time of my life doing what I want for whom I want and when I want.

Go for it.

John

[Delw]

Originally Posted by behindpropeller Why would it be unacceptable? If you have a master mounted on the table and check that with the probe and then check the part and have it dump the numbers off of both parts into an inspection sheet. If the master is correct why would the part be off?

Ball screws / ways and gibbs are the reason why, at any position you can have error then you have repeat ability, you dont take a micrometer and use it as a clamp then check a part with it.
machines have wear surfaces and they do wear under heavy load and the different materials you cut, not to mention the slop that a ball screw will give after a why.
CMMS are run off of air bearings, there is less friction and there not used as a cuttin tool, which will cause wear points.

put a .00005 indicator on your machine and push the table and the head you will see the needle move, even on a new machine. however under a load the machine will hold a tol.

While haas does cut a good circle its not perfect interpilation.

Originally Posted by behindpropeller If the technology is there you might as well use it. How come you are not making parts with a manual bridgeport anymore? You got dummed down to using a CNC. Tim

dont be so sure, I use mine every day for making parts and drilling, every piece of equipment has its usage.

[Geof]

John;

Yes retirement, years ago I said I never would but now I have gone and done it.

The parts I like are the two upcoming river cruises in Europe later this year and several trips planned for next year.