Part 2 of the EMCO PC Turn 50 CNC lathe retrofit series: Placing machine cabinet covers, Stepper motor replacement including dry run and tool modifications for the turret.
00:00 Making cover panels for the machine cabinet
03:25 Removing the old stepper motors
06:54 New stepper motor mounts
10:04 Dry run of X and Z axes
12:15 Lathe tool modifications for the tool turret
See the link below for the written summary on my website, including a PDF with the Wiring Diagram, Bill of Materials and software parameters. (Free download)
Link to all CAD models for custom parts used in this retrofit:
https://grabcad.com/robin.z-1/models
Din Rail holder for stepper driver by Schrotti:
https://www.thingiverse.com/thing:2747122
Article on difference between MXL and GT2 belts:
Cheers,
Robin
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sir, the emco lathe has only 2 limit/homing switches, i.e. x axis and z axis?
Hello (sorry about my english)
I also do a retrofit with SZGH, on emco 240, all things are a litle bit bigger 😉
1) the old Motors are 5 phase Stepper Motors, it is possible to get 5 phase driver to drive this smal Motors (but I cold not get one to drive with 230V)
I don't use 24V drivers, there is not enough power.I use only 230V drivers Higher voltage enables faster polarity reversal of the windings, which improves the motor's characteristic curve.
2) min 5:01 the Sensor ist the reverence senser to home the axes, normaly ther is a mark on each axe to to get manualy to it. Then home it.
I think this is a very good idea with high prezision, homing on 1 rev of the spindle than homing on the axe, on the other hand it is a bad idea while you could homing on any positions, and there are no limit swithes on the emco turn machines.
3) 6:23 I also think mounting stepper driver on din rail is not the best way, the housing is also used to cool internal parts, and mounted dirct on metal plate helps cooling.
?
what is the purpose of the cross slide assembly being on a 45 degree slant?
soooooooo good thx
?
Nice!!!
I have no time for my MicroLathe…