DTSFab.com (Desert, Trail and Sand)
The Machine Shop => Everything Cad => Topic started by: fabr on June 30, 2009, 10:27:25 AM
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;D ;D ;D
Well,I've been pretty quiet the last week or so. Couple of things been occupying my time. One of them is getting the Fadal 4020 VMC running. Used machine. A few known issues and a couple of hidden ones. When done should be as good as new for less than 1/2 price. Anyway, I got it powered up and have been fooling around learning what little I can about it. So far I've managed to figure out how to do very basic stuff like loading the toolholder, jogging axises,homing the machine ,start up procedures, REPLACING X Y and Z BALLSCREWS ::) and the like. Sort of like learning how to use a computer-try something,ANYTHING, and see what happens.LOL!!!
So ,for the laugh, how the hell do I command the doors to open and close?
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It has auto doors? I didn't think they offer that option back then. We always taped over the micro switch's on the doors to bypass the safety lock outs.........
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Oh, and replacing the ball screws, fun fun ;D At least it's got a cartridge spindle so when it comes time for that it wont be a giant pain........ Well, it's still going to be a pain in the wallet. If it's a really high time machine, getting the taper reground is nice.........
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It's a 95 machine. When initially applying air to machine the doors close but at power up the doors open and stay open. I can manually open and close them when machine is under power but not when power is cut off. I know something is effed up in their operation . Shouldn't there be a door close/open command?
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Oh, and replacing the ball screws, fun fun ;D At least it's got a cartridge spindle so when it comes time for that it wont be a giant pain........ Well, it's still going to be a pain in the wallet. If it's a really high time machine, getting the taper reground is nice.........
Actually the ballscrews are not much of a problem especially the Z. Not as expensive as I feared either when using reground and ceramic balls. I had to buy a new extended Z tho and that cost more than the X &Y combined. .So far the spindle seems OK. Need to actually check it out tho. Regardless I'll do whatever it needs.
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so OPEN SESAME didn't work?
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Hasn't yet. Believe me I've tried that!
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Actually the ballscrews are not much of a problem especially the Z. Not as expensive as I feared either when using reground and ceramic balls. I had to buy a new extended Z tho and that cost more than the X &Y combined. .So far the spindle seems OK. Need to actually check it out tho. Regardless I'll do whatever it needs.
Master
Using a good blue die cream smear it all over one of the better tools and plug it into the spindle. Be sure to coat the complete taper. Take it out and look at the pattern that it leaves. if the pattern is the same all the way around the taper and there is no real big dead spots like there was no contack then it is good to go. I have the name of a Kansas City company that will come out and grind the spindle right on the machine. They set up a small grinder on the table and plug in a program into the machine that brings the Z down and interpolates the XY to grind the taper. Cost was $1300.00 US when I had my VFO done in 2005. Should have about 700 PSI pressure holding the tool in also.
If you don't then you will need a new CU washer pack. Not bad to install. My machine tec calls them doors Man Traps. Lose them.
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Yes,the prussian blue is coming out tonight. A man named Ken Houk with Open Source CNC from Wichita has been a big help so far. Have you heard of him? Seems pretty well versed in this stuff.I think he told me of the same person as you are about splindle taper grinding.
Yeah,I agree on the man trap thing. I just want to know how they are SUPPOSED to work.
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My machine tec calls them doors Man Traps.
Hehe, I worked on some Mori's that would just about chop you in half if you weren't paying attention.
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Do you have a list of the Fadal commands?
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Now THIS is my sorta stuff.... good luck. Cant wait to see the stuff you got coming out of the beast.... LOVE machinery..... ;D
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Yes,the prussian blue is coming out tonight. A man named Ken Houk with Open Source CNC from Wichita has been a big help so far. Have you heard of him? Seems pretty well versed in this stuff.I think he told me of the same person as you are about splindle taper grinding.
Yeah,I agree on the man trap thing. I just want to know how they are SUPPOSED to work.
Not familiar with the name. I use a fellow by the name of G L Warren. Or who ever is the HAAS tech in the area that is free. Most of the problem's I can take care of. Until it comes to the controls. Then i';m shit up a creek.
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Do you have a list of the Fadal commands?
Yes and I don't find any command for it..The book says that the spindle should not turn ifthe doors are open. It does tho.
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Now THIS is my sorta stuff.... good luck. Cant wait to see the stuff you got coming out of the beast.... LOVE machinery..... ;D
Yeah ,me too on both accounts.
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Not familiar with the name. I use a fellow by the name of G L Warren. Or who ever is the HAAS tech in the area that is free. Most of the problem's I can take care of. Until it comes to the controls. Then i';m shit up a creek.
Yeah ,same here. Many years ago i worked for a guy that dealt in used machinery before cnc stuff was widely available.i learned a lot then but ,of course,nothing about cnc control stuff.