[district7]

Just picked up a Multicam MG 103. It looks like it has cut a lot of wood in its day. I have some specific parts Id like to get right away.

• Linear rail cover for the X axis. One side must have come off. (should I worry about this?) Gantry has to be removed for installation?
• Bearing Cars - Not sure I need them yet. 1666-294-11 is the part number on them ( I think), are these Rexroth? (AA08K is this the production date?) The rail width is 20mm.

If I gave Multicam the serial number do you think they would tell me the service history?

[Parkgrr]

Nice find!

If you're slick you might be able to slip the cover under the bearing cars. Multicam can be helpful depending on who you talk to. I recall getting ahold of a lovely and expert guy named Eric last year. If you're ever interested to retrofit this with a modern controller and need help please get in touch.

[district7]

A year later and I have movement. I've completely redone the main control panel, added a larger control panel on the Y axis, and have a new switch control interface.

Right now, I could use help with is setting the steps per inch on all the axis. My last machine was easier to calculate this since the steppers were directly coupled. I know these steps per unit questions get posted all the time. So I did a fair bit of searching before posting this, I've found great answers.

With this build I am using the ClearPath servos.

Here is my setup:
Z Axis -

Motor - 1410 rpm 800/rev
Drive Pulley - 18teeth
Driven Pulley - 36t
Lead screw: 1/4"/rev

X Axis -

Motor - 1410 rpm 800/rev
Drive Pulley - 20teeth
Driven Pulley - 30t
Lead screw: 1"/rev

X Axis -

Motor - 3070 rpm 800/rev
10:1 Planetary Gearbox
Drive Pinion - 20 DP, 20 ° PA, 25 Teeth, 0.5 in Face (MARTIN TS2025)