pls, help me to align a citizen L12

hello, pls help me to align the 2nd spindle of a citizen L12

pls check photo 03 : i put a comparator dial among those lines :
... among the yellow, on the side of the spindle, the comparator moves 0.05
... among the black line, on the top of the spindle, comparator does not move

i am not sure : is it ok to put the comparator there ?

i put the comparator also like in image 04, and moved Z2 axis : dial indicator moves 0.05; in image 05 it does not move

pls help / thank you !

hi mr King that thread is pretty general, does not reveal "how-to" align : i need to know the exact procedure, because this is the 1st time i am doing it

also they discuss about using an interapid indicator, without talking about the fact that it is affected by gravity when rotated into a horizontal spindle; best practice is to use a ( haimer ) centro / coax

dany_boy said:

also they discuss about using an interapid indicator, without talking about the fact that it is affected by gravity when rotated into a horizontal spindle; best practice is to use a ( haimer ) centro / coax

Click to expand...

I think your all fucked up thinking an indicator is less accurate than a Haimer / Centro / Co-ax. They all have that Negative Gravity thing going on. Decent clock, on a really stout base, beats gizmo's any day of the week. Makes me wonder what you are clocking into? you have one spindle.

use a haimer orizontally, and target something <0.03; after that replace it with an indicator, and check

if you succedd, please film it & post it, and share the indicator type & brand; will you ? thx

the best way to use the interapid is to clamp it inside a rigid flange, just how is shown in image 01 : this involves crafting one, and it may not be suitable for a large range of diameters; clamping the interapid from image 03 directly into a collet spindle will be pretty acurate, but it covers only small diameters

using an interapid with articulations ( image 04 ), will simply add errors; even a single articulation may add errors, so if there are more, than deviations will increase ( it is possible that the deviations are proportional, just like when using a comparator very tildted, but is best practice to use the instrument in a natural position )

differences shown by an interapid, depending on how it is clamped, may reach easy 0.03-0.04 : i just showed this today to the guys that came to align the cnc

a centro can be clamped pretty fast in a collet ( or whatever rigid thing ) and it's palpator can be adjusted to fit a large range of diameters

we aligned the cnc by using a centro ( image 02 )


machtool, what do you mean by " stout base " ?

machtool said:

I think your all fucked up thinking an indicator is less accurate than a Haimer / Centro / Co-ax. They all have that Negative Gravity thing going on. Decent clock, on a really stout base, beats gizmo's any day of the week. Makes me wonder what you are clocking into? you have one spindle.

Click to expand...

Phil, you realise it's the Cat right?