Nice video man! Maintenance on these old machines is absolutely key. I've got an old 1996 Haas VF4 that still spits out parts accurate to .0005 (if the lead screws are properly warmed up) which according to virtually every forum on the internet out there is 'impossible.' Just goes to show your machines will take care of you if you do the same for them!
hi At man need feedback on some issus. i bought a new small tormach pcnc 1100 . I built my self the stand .the same as the factory one with one exception .After i have read a forum i decide that stand should have 3 support on the floor not 4 this way they are all touching , with 4 is always one in the air. Not shure now it was a good decision but it done.I have to with it. Q1 the machine is on 4 pieces of 3x4x1 steel with hole in it for a screw for fixing the machine on it. By leveling the machine do you thinking the stand with the floor .The machine with the floor . The machine it self in space. Following the answer you will give me , where to place the level on that machine type. Thanks you for your help . And sorry for the grammatical error , I'm french Canadian
Hello Alain, Tormach does not seem to mention leveling in there manual from what I could see. I guess, if it where me, I would level the stand reasonably well, then level the machine on the stand? Only reason I say that is it sounds like you build a really beefy stand. When leveling the machine I would use the Y ways, it is easy to remove the bellows cover on each side. Then move the level to the table and check for twist in the Y axis. Hope that helps, Tim
When your calibrating something, you need some type of standard. The industry standard minimum TUR is 4:1, the standard must be at least 4 times more accurate then the unknown you are trying to calibrate. Ideally a 10:1 is much better but hard to achieve as accuracy increases. At some point almost all standards come down to some certain physical thing. For example, if I have a pressure gauge that is 1% accurate, I need a source to calibrate it that is at least 0.25% but ideally 0.1% accurate. When you start getting down to a pressure gauge with 0.01% accuracy the only way to calibrate it is by using a physical standard. That is a dead weight tester, a precisely sized piston that gets weights stacked on it to generate a very accurate pressure. When you start getting really really accurate the weights are never touched, temperature and gravity variance is taken into account, and there is a shield for and air movement. Hope that answers your question.
ok now is level . i have a machinist level place on the x axe. I moving the y up and down and no movement on the bubble.Now as i have gib not linear ball truck how i would tried to square the x y axe, you mention shim ? I just found something on the z axe on the y side super .0001 on a 6 in square but on the x side .003 from top right to left / . I loose the head screew tap tap tap no move it late and out of idea . Good night . Alain
The Fadal Gib adjustment procedure has you use a shim to help set the free play in the gib. Typically though a gib and strap can not be used to square a machine. In most cases you would need to scrape the dove tails or box ways to bring them into square. Are you sure your machine is out by 0.003" per 6" that is a huge amount. Is the machine new?
I do not, my machine has all linear rails in it so I don't have anything to show with. If you have a Fadal the maintenance manuals have a pretty details procedure on how to check the free play and adjust them. You can download them at fadalcnc dot com
Hello Chris, thank you for the support. You can do a one time donation by sending me an email. I can then send an online invoice through Square. I also sell the polo shirts you see in the videos. We do our own embroidery. My email is in the description of all the videos and in the "About" section of the channel. Thanks again, Tim
buying used machines is waste of time. metal wears out, that's why used metal is no good. all metal must be new and high quality. You also don't know how much care did previous owner had. That's why I am building my own CNC mill with optional 4th axis, it is going to be cheap and I will know every little detail on how it works inside.
![[Full] 4 ต่อ 4 Celebrity EP.920 | 3 พ.ย. 67 | one31](http://i.ytimg.com/vi/KwiW2M_kAg4/mqdefault.jpg)
Nice video man! Maintenance on these old machines is absolutely key. I've got an old 1996 Haas VF4 that still spits out parts accurate to .0005 (if the lead screws are properly warmed up) which according to virtually every forum on the internet out there is 'impossible.' Just goes to show your machines will take care of you if you do the same for them!
Yes they will, not much has changed in the course of Iron and ball screws. New controls are a lot better but the iron really almost unchanged.
Excellent presentation! Thank you!
Mr. AT-Man. You are the Man. Thank you.
Put my pants on the same way everyone else does, one leg at a time. But thank you!
Really useful videos, thank you!!
I was looking for a video like this, thanks!.
Welcome!
its very like pls kindly share this details notes on my mail maninp270@outlook.com
Thanks
Excellent material presentation. Thanks
Thanks
Great video, thanks for sharing this information
Great video! I am get owned by a homemade cnc, can allign the axis with the pillow blocks for example. I hope I can learn something in your channel.
Thanks Gabriel
The machine alignment series covers many of the adjustments needed. Let me know if there is something missing you need.
Tim
Thanks.
hi At man need feedback on some issus. i bought a new small tormach pcnc 1100 . I built my self the stand .the same as the factory one with one exception .After i have read a forum i decide that stand should have 3 support on the floor not 4 this way they are all touching , with 4 is always one in the air. Not shure now it was a good decision but it done.I have to with it. Q1 the machine is on 4 pieces of 3x4x1 steel with hole in it for a screw for fixing the machine on it. By leveling the machine do you thinking the stand with the floor .The machine with the floor . The machine it self in space. Following the answer you will give me , where to place the level on that machine type. Thanks you for your help . And sorry for the grammatical error , I'm french Canadian
Hello Alain, Tormach does not seem to mention leveling in there manual from what I could see. I guess, if it where me, I would level the stand reasonably well, then level the machine on the stand? Only reason I say that is it sounds like you build a really beefy stand. When leveling the machine I would use the Y ways, it is easy to remove the bellows cover on each side. Then move the level to the table and check for twist in the Y axis. Hope that helps, Tim
I want to ask if I opened the cnc rail cover, what silicone sielent glue did you use? info please
did you use silicone red?
Hi, as long as you mentioned the total uncertainty ratio, I would like to ask is there any difference between that and the test uncertainty ratio?
When your calibrating something, you need some type of standard. The industry standard minimum TUR is 4:1, the standard must be at least 4 times more accurate then the unknown you are trying to calibrate. Ideally a 10:1 is much better but hard to achieve as accuracy increases. At some point almost all standards come down to some certain physical thing. For example, if I have a pressure gauge that is 1% accurate, I need a source to calibrate it that is at least 0.25% but ideally 0.1% accurate. When you start getting down to a pressure gauge with 0.01% accuracy the only way to calibrate it is by using a physical standard. That is a dead weight tester, a precisely sized piston that gets weights stacked on it to generate a very accurate pressure. When you start getting really really accurate the weights are never touched, temperature and gravity variance is taken into account, and there is a shield for and air movement. Hope that answers your question.
NICE VIDEO. GOOD WORK
ok now is level . i have a machinist level place on the x axe. I moving the y up and down and no movement on the bubble.Now as i have gib not linear ball truck how i would tried to square the x y axe, you mention shim ? I just found something on the z axe on the y side super .0001 on a 6 in square but on the x side .003 from top right to left / . I loose the head screew tap tap tap no move it late and out of idea . Good night . Alain
The Fadal Gib adjustment procedure has you use a shim to help set the free play in the gib. Typically though a gib and strap can not be used to square a machine. In most cases you would need to scrape the dove tails or box ways to bring them into square. Are you sure your machine is out by 0.003" per 6" that is a huge amount. Is the machine new?
Do you touch the gibs at all in this whole series? i can't find that easily
I do not, my machine has all linear rails in it so I don't have anything to show with. If you have a Fadal the maintenance manuals have a pretty details procedure on how to check the free play and adjust them. You can download them at fadalcnc dot com
thanks!
at-man, I'd like to donate but I'm not interested in signing up for anything. do you have another method?
Hello Chris, thank you for the support. You can do a one time donation by sending me an email. I can then send an online invoice through Square. I also sell the polo shirts you see in the videos. We do our own embroidery. My email is in the description of all the videos and in the "About" section of the channel. Thanks again, Tim
Sir please told the electrical unit system in CNC
I love precision.
But is my table also parallel to the curvature of the earth......
at least a tangential plane. XD
LOL, your welcome to figure out how much drop you get over 20" given the earth's radius ;)
0.000000313 meter over 1 m tangent for each side.
313 nanometers. Not that far off.....
de.wikipedia.org/wiki/Erdkr%C3%BCmmung
Well, I think that only comes out to about 0.06454512 arc seconds, well below what the levels can measure.
Sir I just resurface the table and it's totally dead😢
A lot of these people in the comment must not be from America lol
buying used machines is waste of time. metal wears out, that's why used metal is no good. all metal must be new and high quality. You also don't know how much care did previous owner had. That's why I am building my own CNC mill with optional 4th axis, it is going to be cheap and I will know every little detail on how it works inside.
Wow, let us know how it works out.
How's it going with your CNC?
@@ElixirCNC had to made coil winding machine first. Currently finishing tubular linear motor design. Video code hash *7BmzuG_PFok* , check it out.
I just made mistake
Your video frame rate is laggy...