DDCSV1.1 4 Axis controller

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c4g:
I am new to this site and new to cnc. I built my 1st cnc router using the DDCSV1.1 4 Axis controller patched with pandora. :)

How do i copy and edit the current controller settings offline? if i edit system.backup file located on the usb drive i get a parsing error message from the pandora configurator. Ubuntu lists the file as a bin file.

and where can i find out what each config line # number sets? there seems to be multiple setting for axis speed and i am unsure what each does. my interest is when the machine is working the feed rates are low (the DDCSV overides G code speed settings), but when the machine is transiting, the rates are fast, with a maximum safe rate set in software. Currently I manually change the FRO variable to do this.

and how do i set a machine home position? I do not have a home probe so i'd like to set a home position in software ( using MACH machine coordinates) so that the head returns to the same position for tool changes as such or when a job is finished.

the chinenglish manual is a confusing read for me....

thanks, this thread was an amazing read & very educational!
cheers & thanks

chriscnc:
Finally getting to set mine up

chriscnc:
Hey group, so some advice on the internal vs external power, im converting a Multi-cam cnc router to our loved ddcsv. to original control is from 1998 and has to be drip feed... and sucks with fast 3d moves. I've built many CNC mills etc from the ground up but this one im doing more of a conversion reusing 90% of whats there it has nice IMS drives and power supplies and magnetic home switches etc.

So here is my question the drives have a nice 5v supply already tie'd to drive for the opto (3 wire 5v+,step,dir) can I leave the 5v from the PSU and not use the 5v from the DDCSV, as the grounds will still be the same so the signal will be driven low either way. second is the home switches, they are magnetic 3 wire but are tied to the 24v psu will the home input take a 24v v.s the 12V as noted and supplied from the ddcsv, I would hate to need to swap these out for 12v ones, or I can try and source a level converter. Basically, there is a real nice5/12/24v PSU all wired up already in there and am wondering if I can/should use it v.s the DDCSV power outputs and only tie the signals in, my concern is some of the loads such as these 1998 magnetic switches and opto drives may pull more than the DDCSV step down regulator is putting out.

c4g:
I have made a probe and it works great for probing the z axis zero working height in the current coordinate system (usually g54).

I was surprised that when working in the machine coordinates (G53?), the probe function does not use the offset stored in line 69: Thickness of tool sensor". I wish to use the probe sensor to calibrate the table top to tool tip distance (which varies every time the tool is changed), as I have a software -z axis limit of zero set , so that my tools do not accidentally dig into the table bed.

The process i use to do this is:

1) tool change
2) place the probe plate on the table surface
3) switch to any one of g54,...g59
4) initiate the probe function (3 key presses)
5) the tool moves down, touches the probe plate, moves back up to line 75: Retraction distance after probing + line 69: Thickness of tool sensor" the probe function automatically rezeros the z distance.
6) switch to G53 (Machine) coordinates
7) zero z axis with DRO readout from step 5 (5+ key presses)
8) switch back to working coordinate system. (more key presses)
9) continue on working

if the probe function worked the same way in g53 as the others then i would not have to do this.

is there a built in function that does the same thing? or

can someone write a gcode routine for me to do this same? Im a noob to gcode, so I am not sure where to start.

Again, all i want to do is probe for the table top to tool tip zero position, so that the software limits protect the table top & tools

chriscnc:
ref C4G..

I'm not sure on this control if a soft limit is applied to both g54 and g53, in general, your soft limits are mach g53 only. so the best way to stop from cutting your table is to zero off the table then in your cam ref the Z as the bottom of the material then all of your g code will be in the + direction. if you have a spoil board Zero of it for the cut through.

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