Denford Mirac conversion help

**Hellfire** · 22-10-2016

Originally Posted by Mad Professor

Hellfire: I also own a Denford Mirac, but mine does not have the ATC.

Does your Mirac use the newer control board or the older LCB3?
Mine uses the LCB3, and I am using a Ethernet Smoothstepper in combination with the LCB3.

Best Regards.

d411 issue 3 on the control frame, mint 3.28 on the chip

**Hellfire** · 23-10-2016

Came across these, are they worth having.
https://www.cnc4you.co.uk/Stepper-Mo...or-8Nm-Nema-34

**m_c** · 25-10-2016

Closed loop steppers are one possible option, and are a pretty good compromise between the existing standard (open loop) stepper motors, and a proper servo system.

**Hellfire** · 04-11-2016

Thanks for the help, got the servos and drivers. Went for uc300 and 3 bobs.
bm01
cp0-12v
kk01

needed additional inputs for the rotary switch on the back of the turret.
one question though, why do bobs only come with one relay. I need to be able to reverse the spindle, is it possible to use the relay on one bob for fwd and the relay on the other bob for rev.
cheers

**m_c** · 05-11-2016

Yes.
However the exact implementation will depend on how the spindle forward/reverse is controlled.

**Hellfire** · 05-11-2016

Scrub that, forgot I had two vfd's to control. One for the turret and one for the spindle. Both need to reverse. This is going to be fun

**Hellfire** · 07-11-2016

i have come to the difficult bit now, i am looking some help with a macro for a tool change. on the rear of the tool changer there is a rotary switch with 8 positions and another micro switch to tell the machine it has locked.
i have all the inputs reading on the motion controller.
when the motor goes fwd it pushes the tool plate out and then starts to rotate it, on reverse it draws the plate back in until the micro switch sees it.
should add i have no clue about macros.
cheers