Denford Triac VMC with ATC Conversion / Fix

[Chaz]

Ok, time for an update.

Had some setbacks with some of the electronics items, not going to discuss as such but many thanks to continued offline support from both i2i, JazzCNC and Gary @ Zappautomation.

Received my compressor today as well as the solenoid / actuator items. Got mostly working, missing 2 small 90 degree items, but its installed and wired up.

I tested the carousel motor for the first time today, spins along happily. I have no real idea yet how it knows where it is. I know there is a sensor, will try and look at that again later and there is an ability to reverse the direction of travel. Clearly it needs to 'know' which tool is currently selected.

Am hopeful that this weekend, unless I have issues or some delays on parts coming in, may be able to do the the first basic milling, with or without the tool changer working.

[Boyan Silyavski]

Dont forget to post some video at the end of that . Or to say at the start of the new journey

[i2i]

the sensor reads the position of the disc on the carousel motor

[Chaz]

the sensor reads the position of the disc on the carousel motor

Thanks, but what does it output?

[i2i]

Thanks, but what does it output?

it's fed with either 5v or 12v, pretty sure it's 5v. It's basically a three wire proximity switch, gnd, supply, and output. It will give you a switched output relative to the supply voltage.

[Chaz]

it's fed with either 5v or 12v, pretty sure it's 5v. It's basically a three wire proximity switch, gnd, supply, and output. It will give you a switched output relative to the supply voltage.

So does that basically activate when the proximity sensor is happy? So its a locator device?

[i2i]

there's a point on the disc that is removed, this activates the sensor when it passes it. The logic in the macro needs to see this twice for one tool position

[Chaz]

Hi, so update time. Mostly there now, busy wiring in the DC Drive input isolator. I just want to check, some of the wiring a bit uncertain about.

This is the board I am using, as recommended by i2i.

http://diycnc.co.uk/spindleV5x.pdf


On the board, I need to provide 24V DC, straight forward, I take from my 24V PSU rails.


I then need to provide the 0-10V output to the old DC drive, check, 2 wires, sorted.


I then need to provide GND, STEP, DIR and Run / Enable.


From my CS Labs unit IP-A, I get an Analog Output.


So, looking at the image below, I take from pin 7 (Analog Out 0) and pin 20 (Gnd) - do these go to the GND and STEP inputs on the board?

What do I use for DIR And Run / Enable then? Are these from my CS Labs unit (24V switched outputs)?

[Chaz]

I can see the motor can be reversed too using a relay called CCR. Is this commonly used in the retrofit? I know there are macros that 'know' that getting from 8 to 6 is quicker to go back 2 steps than forward by 6.

[i2i]

you can always add a switch to energise the valve for the toolholder cylinder, and change the tools manually.