[Need TECH Help!]

Hi Tom,

You should be able to do this. Instead of Zeroing use the "SetX" button and enter the measured diameter.

Will give it a go.

The canned cycles iam refering to is like the ones Fanuc uses, see links below.

Fanuc G71 Turning Cycle - Helman CNC
CNC Fanuc G72 Canned Cycle Facing - Helman CNC

Thanks,
Troy

[mmurray70]

Sounds like Morays C program should be great for X. Tom if you used "SetX" wouldnt that set a G54 value and not actually set anything for the tool? A second tool, would just set another different value for g54 then, so not sure that would work. Whatever your doing for Z in your mill should work in the lathe too. Bunch of ways of doing it, everybody has their favorite.

I have a friend who uses Mach3 on a lathe and it seems to work well. Generates its own code for simple stuff like Moray is saying. I wouldnt use it as a controller, but probably not a bad idea to generate some basic code. Tom, the G71 roughing cycles (not actually a canned cycle) are basically used to define finished shape of a part, and the control generates multiple depth passes to rough out the final shape without a million lines of code. Probably not an easy thing to add.

Troy, post some pics of the press brake as your building it. Thats a project ive been meaning to do soon too.

[Need TECH Help!]

Tom if you used "SetX" wouldnt that set a G54 value and not actually set anything for the tool? A second tool, would just set another different value for g54 then, so not sure that would work.

Thats what i just found out. Although i think it just sets the global as the Work offsets dont change when set X.

Troy

[Need TECH Help!]

Hi mark,
Here is 1st stages of press.
Attachment 407336Attachment 407338

[m_c]

Here's the code from an old backup I've got on my laptop, although I have a niggle in my mind that I had to change the offset calculation on the lathe.

[m_c]

Here's the code from an old backup I've got on my laptop, although I have a niggle in my mind that I had to change the offset calculation on the lathe.
I would got out to the workshop to check, but I'm choked with a cold so have been having a very lazy weekend staying inside where it's warm!

Couple notes are this checks to ensure you're in metric mode, and you have to move the X axis back to the cut position before setting the offset I.e. if you do a pass at 10mm then pull out to stop rubbing, you have to ensure the axis is moved back to 10mm before running this offset program. I normally do a single pass, pull out, move far enough in Z to clear the stock, move X back to the cut depth, then run the program.

#include "KMotionDef.h"
#include "cyclone.h"
#include "KflopToKMotionCNCFunctions.c"

main()
{
	int	Units, TWORD, HWORD, DWORD;
	double DROx, DROy, DROz, DROa, DROb, DROc, OffsetX;
	double XMeasured, XDiff, XNewOffset;
	float XEntered;
	// get current DRO reading (we only need X, but we have to handle them all)
	GetDROs(&DROx, &DROy, &DROz, &DROa, &DROb, &DROc);
	// get the current Units and ToolTblID (and ignore the H and D Words)
	GetMiscSettings(&Units, &TWORD, &HWORD, &DWORD);
	// if KMotionCNC is in inch/G20 mode, then quit as it shouldn't be
	if(Units == CANON_UNITS_INCHES){
		MsgBox("KMotion set to inches. Set to MM and retry",MB_OK|MB_ICONEXCLAMATION);
		ThreadDone();
	}
	// get the X offset from the tool table using the TWORD as index
	GetToolOffsetX(TWORD, &OffsetX);
	// now we have those, ask the operator for the actual size
	int Answer = InputBox("Enter measured diameter in MM",&XEntered);
	printf("Entered Value-%f\n",XEntered);
	XMeasured = XEntered;
	if(Answer) {	// if true/1, then user cancelled
		MsgBox("X Offset adjustment cancelled",MB_OK|MB_ICONEXCLAMATION);
		ThreadDone;		// and kill the thread
	} else { // else we got a value and need to do some calcs
		// first up we'll calculate the difference
		XDiff = DROx - XMeasured;
		// then the new offset with some rounding
		XNewOffset = RoundToReasonable(OffsetX + XDiff,Units);
		// and finally update the tool table
		SetToolOffsetX(TWORD, XNewOffset);
	}
}

And I've just noticed that calls my cyclone header file. You can delete that line, and just add a define for TMP if you don't already have one.
This was one of the included example files that I modified.

[Need TECH Help!]

Hi m_c,
Dont blame ya on the cold, its getting like that here.

Just did a quick eyeball check and it looks like C program worked great. Will do an actual test cut and reset tools to see if calculation is correct.

Thanks again,
Troy

[Need TECH Help!]

Here is another part for press.... fresh off the press
Troy

[Need TECH Help!]

Here is completed press break attachment. Did some test bends at they came out good. Will be making my servo covers with it in a few days and post some more pics then.
TroyAttachment 408068Attachment 408070

[TomKerekes]

Hi Troy,

So what moves the press to do the bend?

[Need TECH Help!]

Hi Tom,
This attachment will go in a H- frame hydraulic press. Will post a pic of it when I make my gaurds.
Troy

[mmurray70]

Nice work, is it just mild steel or something harder? Is that a purchased piece in the bottom or did you machine that too?

[Need TECH Help!]

Top and bottom shoe are mild steel. Top punch is 4140 and the bottom die I thought was 4140 but was definatly not as it machined like D2. Got materials at a shop I used to work at. Machined everything here at home.

[Need TECH Help!]

Here is press attachment on the press.

[TomKerekes]

Your work is so nice. What is the gear gizmo on the right? Does that somehow measure the press distance?

[Need TECH Help!]

Hi Tom,
Thanks, thats what i believe about your coding work.But, what i lack in C code skills i think i make up in other areas. The gizmo is just a boat winch modified slightly with a cable that attaches to both sides of the press table to raise and lower it with a cordless drill. Its a bit to heavy to change height without assistance.
Troy

[Need TECH Help!]

Just realized had not shown my covers i made nor updated where machine is. Also been waiting almost 2 months for my z axis ballscrew Covers to be made.
Here is some pics of paint prep.

[Need TECH Help!]

more paint pics and views of servo motor covers...

[nearsprecision]

I'm just wondering how this project is working out. I have a number of these machines and am considering their destiny.