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Line 32:
Line 32: − Spindle motor and variable speed drive.+ − − Spindle brake − − Y and Z servo motors and controllers − − Automatic lubrication system works, but we haven't been able to verify that all surfaces are receiving oil. Line 44:
Line 38: − + + + − The draw bar is missing.+ − + − + + + + + + + + + + + + + + + Line 69:
Line 79: + + + +
no edit summary
== What works so far ==
== What works so far ==
Almost everything - the handwheel is the only part without a fix in progress.
The Heidenhain controller boots and performs some basic operations. It blows an internal fuse occasionally.
The Heidenhain controller boots and performs some basic operations. It blows an internal fuse occasionally.
== Open Issues ==
== Open Issues ==
A cover for the variable speed drive and motor is cracked and bent. This cover holds the spindle drive bearing in place, so the misalignment of the bearing may cause problems with the bearing or the spindle drive spline. The cover should be replaced if possible or repaired.
Find a process for backing up and restoring system parameters.
A replacement cover for the variable speed drive is partially installed. We need to remove the cover and replace two alignment pins, then adjust the Reeves drive.
The machine was wired at the factory for 460 volt 3 phase and we use 230 volt 3 phase in our shop. Ed and Dean rewired the motor and controller box, in a temporary fashion, to use 230v. It is currently using a 460 to 230 volt transformer, which will eventually be removed.
The machine was wired at the factory for 460 volt 3 phase and we use 230 volt 3 phase in our shop. Ed and Dean rewired the motor and controller box, in a temporary fashion, to use 230v. It is currently using a 460 to 230 volt transformer, which will eventually be removed.
A draw bar should arrive from Kurt around 4/21. It will need to be machined to length and drilled for a pin.
The machine didn't come have a power draw bar. We now have a Kurt pneumatic draw bar mechanism, but it may need work to make it fit our machine.
The Kurt power draw bar has to be installed.
X, Y and Z limit switches need to be adjusted.
X, Y and Z limit switches need to be adjusted.
Y axis ball screw cover is bent and not sliding properly. It should be removed and replaced (or bent straight). Removal is difficult because it is bent.
Tension on the drive belts should be checked. Especially for the Y axis.
Y axis ball screw cover is bent and not sliding properly. It should be removed and replaced (or bent straight). Removal is difficult because it is bent. This could require removing the table, which is heavy.
Order a computer for design work and to drip G code to the Heidenhain.
Figure out how to drip code to the Heidenhain (Ed).
Move the automated lube system power back to the relay in the control cabinet. It is currently powered through a separate 110 v cord.
Check the handwheel rotary encoder. It may have a burned out bulb.
Set up the tool chain.
check the BP maintenance manual for other adjustments that are required.
== Closed Issues ==
== Closed Issues ==
The mystery of the spindle taper has been solved. NMTB 30. We now have a good supply of tool holders.
The mystery of the spindle taper has been solved. NMTB 30. We now have a good supply of tool holders.
the TNC 151 power supply failed while we were working on the machine. The problem was a bad 220uf 63 volt capacitor, which we replaced.
One half of a y axis limit switch failed. We swapped it for the other limit switch on the same axis which only needed one half working.