How to install NSK Linear products - 2. Ball Screw 

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I don't see how it's luxurious, it's either in or out of tolerance

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I have reality about this

Joke?

there are too many mistakes

me pergunto como ele removeu aquele suporte pra apoio de acrilico

you can search on Amazon-us

там теперь шпиндель как слона)

I guess it's an older style of torque wrench, where a springy piece is bent while applying torque and you read it on the scale.

I see, it seens to be a pretty nice way to have an estimative... can't find one to buy :/

Often called a 'deflection beam' torque wrench.

Canadian Tire has some, but a little bit bigger.

You can use any hand scale. Common sense tells me so.

It's inaccurate to use an indicator at an angle like that anyway. You want the tip of the indicator as parallel with the surface as possible

@@damiendeline4632 but he just needs it to be 0 in both cases... so the angle doesn't matter, as long as it is the same on both sides...

@@damiendeline4632 actually it is most accurate at a set degree, I think it's around 15 degrees but don't quote me on that number.

They're measuring torque required to turn ball screw

@@danielwolfe8 , who manufacturers that instrument, i can't find that specific one anywhere?

Евгений ЧПУ отака хуйня, малята

OK

V ū

你小子😂！

JUAN BERMUDEZ la base tiene encastre Juan...

huh?

no! just a dummy piece for some reason :(

I thought the motor looked a bit small.

Hi, can you explain please ?

if you plan to center that hole to the ballscrew, yes that is the wrong method. But he use that method to adjust the height between right and left ballscrew support (see he add shim to add height 11:11). Do you think that NSK engineering is that stupid LOL.

That operation wasn't to center the support bore to the ballscrew. It was to get the bore of the support parallel to the bore of the ball screw. The centering of the support bore to the ball screw happens later at 11:41

I think the point that 404BYTE was trying to make was, anybody who uses an indicator knows that the set-up shown is horrible. If some engineer set up that indicator, yes they are stupid.

The shown setup does get cosine error, but that's irrelevant. The technician aims to get the needle to stay on 0 the whole way around. If you're concerned with real errors, how about gravity? To correctly inspect anything with an indicator attached to a spindle, the spindle should be vertical to even out the gravitational pull over the rotation. Depending on the setup this can make a couple of microns of difference. On a horizontal spindle the indicator (and the arm that holds it) will be pulled in opposite directions when it's in the upwards or downwards positions.

É Miza veio parar aqui também né, quando vejo essas Guias, Fusos, e o tanto que a montagem é técnica e precisa vejo o quanto nossas máquinas são limitadas, no vídeo que eles montam as guias nessa base aí deu pra ver que o relógio apalpador tem escala milesimal de "0,002mm" o ponteiro nem balança kkkkk quem sabe no futuro não temos a oportunidade de ter máquinas com a qualidade dessas aí :)

There is also the difference in hours and hours versus 2 minutes of work. Shims aren't ideal, but they're plenty good enough.

When you are building a machine that is selling for close to a million dollars, shims are not good enough. I machine one block to print and leave .010 on the mounting surface of the other one or 2 blocks. Test fit, measure and grind till the fit is perfect. It only takes an extra 2 hours or so per axis.

If you have the capability to finish grind, that's the way to go. A perfectly ground surface will obviously increase rigidity over shimming a fit. It seems to me this video is aimed towards companies that build machines on an assembly line that aren't anywhere near a million dollars. For them, NSK offers a bolt-in solution that's quick and easy to align.

In a perfect world you wouldn't need shims but this is the real world and there's a good chance you will need them and also at some point you will so this is partial in terms of cost and practical accuracy ... there is no point trying to get a spindle to with 0.002mm when a lathe isn't going to be doing stuff like that but 0.007 will so shimming is the only way to fix that without pulling it all apart and sent off to get worked on... Had technicians work on a Victor lathe that was new and it was a little out as the U-drilling on that machine was strange so digital stethoscopes and so some tighting and smacks and turning the spindle brake down a hair fixed it ..went from 0.009mm to 0.006mm out and was considered good without pulling the machine out and in less than 3 hours...

Why?

@@blacksimpson Because dowel pin holes can be drilled with your CNC machine and are as accurate as your machine and your machining skill. Then you can assemble and disassemble the parts and know that they are going back in the same place. I don't like the process of measurement, adjustment, and bolt tightening, compared to just cleaning all the surfaces and letting the dowel pins handle the positioning before tightening.

Triggered out 👏

you're right he should have move the ball screw nut to one the end so he can measure the DTI along the length of the ball screw out disturb the DTI.