Thats all the Dyna Mechtronics touch probe is. A switch in a nicely machined housing. Oh and a red LED lights up too.
You could use the touch probe from Wildhorse Innovations too.
http://www.wildhorse-innovations.com...d&productId=80
I bought one for finding the center of holes.
Timothy
Tim, I already have a probe made by Zarzul. How are you using it for centering with the Dyna ( I believe you are using Mach 3). Btw I am trying to get it (my mill not lathe)operating with the original controller. So far I can program from the keypad pretty well. I dont understand all of the sequence of Dynalan or Skip C or whatever it is. It does go thru a series of questions/prompts ( I am not sure what to call them) prior to any moves. But for simple pocketing, bolt circles and the like it seems pretty easy. I would like to know what tells me overall depth of cut and cut per pass. Soon.
I will be using Ernies Probe Screen in Mach3 when I get around to setting up one of the inputs on the G540 for the probe.
In the mean time I just use a co-ax center finder in a 3/8in collet and jog the table around till I find center.
As for tool heights, I measure them outside the machine on a granite plate with a height gage.
I'll check my DM400 manual for the bolt circle programming and see what I can find.
Timothy
On my Sherline with my Hobby CNc Pro controller Zarzul's probe works great. The dyna doesnt do a G31 but it must have something similar. A touch plate is all I am going to use with the DM 2400. Or that is my intention at the moment. On my mach controlled machine I am running the MSM Beta with a touch plate and a probe and soon to add a fixed touch plate for auto tool measurement and offsets. Still cant cut where I want to though! LOL
Tim on the G540 there is nothing to do but connect the wire to the pin and the 0 logic/ground. It works great. I have used it on the Hobby cnc pro plenty. I want to implement the probe and or touch plate features in the original Dyna hardware. There are 3 wires on the Dyna probe. 1 is for a shield, 1 for signal and 1 is TTL? I am not sure just how to interface it just yet but that is next. At least a piece of pc board to touch off for Z,X &Y.Originally Posted by 2ferrous
Does anybody know of which aftermarket touch probe that will work with my DM2000 mill? I cannot locate an original...
Thanks,
Tom
Dyna doesnt have one? They had one for a 2400 last week for 350.00. I figured I can build a touch plate that does the same thing for a few bucks. Have you tried jumping 2 of the pins when do a probing move to see if it will stop? That is my next attempt. Right now I am working on communicating thru the RS232 port. I can upload but not download just yet. Soon I am sure. Tom dont you run Dyna's original software? I would like to ask you a few questions if you do run, say DYNACOM for the transfers.
There may be other ways to do it, but on my 4M Dyna, M64 is the skip command. The basic form would be (going from memory, not in front of the machine, so don't blame me if you crash!). There is no G31.
M64 N-56 (wait for pin 5 on J34 to go low)
G1 Z-1. F1. (Move down in Z at a feedrate)
<some G or M code to capture current position>
There is also a conditional skip, M72, which I haven't tried. I don't know what variable is current Z (or X, Y, U, V), but I'm pretty sure it's there somewhere.
If the machine has the probing option on the control, you can use M42, which is basically just a probing macro. This is not documented in my manual (which is actually a manual for the 2800/1007).
Dave,
On your 2016, the probe is controlled by user parameters.
In the User Parameter screen, left column is a setting for Probe Mode. When set to manual, tools are touched off manually (duh). Touch off the tool using whatever method you use, then press the Tool Set button on the keypad twice and the current Z position will be automatically loaded into the current tool's length data. Pressing the button twice prevents accidentally changing the data. This is an alternate method to manually typing the length into the tool data screen. Be careful that some versions of the 4M software compensate for any value in Z for the current work offset (e.g., G54) while other versions ignore the work offset.
When using the Dyna touch probe, set the User Parameter for Probe Mode to auto. In addition, there are other parameters in the right column of the same screen for Probing Length and Probe Thickness. Using the auto method, bring the tool close to the probe and press the Tool Set button on the keypad once. The Z will feed slowly until the tool touches the probe, Z will stop, and the Z position plus the Probe Thickness will be combined and loaded into the tool length data. No other special commands needed. If the probe is not encountered within the Probing Length distance, the Z will stop and an alarm will result. The Probing Length is the maximum distance the Z will travel during automatic tool setting.
M72 is for skipping to a line number within a program. Think of it as a GOTO command.
This does not work or I have not set it up correctly on my machine. I get a divide overflow and "probing failed" error before the axis moves the distance specified in the user parameter. It starts moving down in Z, and after just a few thou, fails with the error above. I've tried changing the parameters for the probe to big numbers, little numbers, no difference, it still stops after just a short motion, and before the probe trips.
Apart from that, I also wanted to do more complex probing tasks with a Renishaw style spindle probe as well as fully automatic probing. It would also be neat to write a program to set all my tools without any manual intervention. Roberto at Dyna tried to help as best he could, but he only knew of perhaps 6 customers in the world using a Renishaw spindle probe with their Dynas!
Yeah, it's not M72, conditional skip is M71. I did say I was going from memory ;+}
There were numerous Dyna customers using Renishaw probes but only with the Mitsubishi controls. I don't recall anyone using them with the PC control. I do remember Dyna customers asking if the probes for their SKIP machines would work on the PC machines and there was something about the wiring that had to be changed.
The Renishaw has a little box (black and orange) that typically mounts in the back cabinet and converts the pulse signal from the probe to a signal the control can recognize. The Mitsubishi used the M31 conditional skip inside a macro for the tool setting. The tool was manually brought down over the probe to within a inch or so, then the macro was run through MDI, and the control did the rest by feeding slowly until encountering the probe and loading the tool length into the tool data page.
I have the Renishaw interface. It's the OMI, which has the IR receiver and interface built into one unit. The interface is electrically identical to the black and orange box (MI 12?).
I can get part probing to work using my little M64 macro. I can have the probe move any direction, stop, load the current position into a macro variable, then return to the starting position. Neither the set local or set tool hard buttons work as expected, however. With either button, no matter what I put in the "probing length" user parameter, the axis selected will move exactly .0985" and stop. But at least it will move the right direction, when I use the tool set button, it moves +Z!
Some may wonder "why is he spending all this time screwing with probing", well, all I can say is I had to set up a (admittedly more complex) Mazak, and after using the spindle probe, I swore will never go back to edge finders and indicators.
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