[Cyphertech]

Hello! First post, great forum. We recently purchased the above mentioned Machine. and I'm stumped on a couple of things. First of all we cant seem to jog the x or y axis in a slow approach speed. when we move the Joystick we get nothing until we push the button which puts it in rapid mode. also the hand wheel doesn't seem to work properly. It creeps non stop when put in hand-wheel mode. Ive check parameter #171 and its set correctly(if I change it to any other number than 2 It wont work at all.) let me know if there is another parameter to look at or where to go from here. Thanks in advance.

[gus]

Which TNC?

I imagine if the handwheel is not defective, it is a bad wiring issue, producing random impulses. Does the handwheel work at all?

I cannot say my joysticks work any differently..........

[Cyphertech]

I have the TNC 151, and yes the hand wheel works a bit. If I wind it in the direction that its creeping it moves faster. if I wind it in the opposite direction it almost stops. I think the Joystick issue was a lack of knowledge issue when the spindle is on I can move the X & Y in low feed mode.

[machintek]

You can also change the resolution of the handwheel. when in hand wheel mode, try putting in numbers from 2 to 7.

George

[Cyphertech]

never did get this resolved but I just work around it. I do however have another issue. when running a program it pauses for a half second after each line of code??? is this a limitation of the machine or is there a parameter or setting I can change? thanks again for any help

[gus]

This is not a limitation of he machine

more information please

how are you programming it?

[mark562]

I have 2 TNC151s & a tnc155 and all do the same, The joy stick does not feed unless the spindle is running.

The pausing at corners is a product of the acceleration & deceleration parameters changing them causes all manner of havoc. I use the round over feature, a radius of .005 on outside corners works nice. You can not round an inside corner but circular moves larger than the tool radius will minimize the pause.

Hope this helps.
Mark

[gus]

I do not believe this to be so. If you use 'L' moves the transitions should be smooth. using single axis X and Y moves will cause a positive stop at corners.

If it is different there is an off setting in your machine

[Cyphertech]

I'm programming it using bobcad. here is an example:

100 G70*
N1 G99 T1 L+0. R+.1875*
N2 G00 G40 G17 G90 X+.0003 Y+0. Z+.1*
N3 T1 G17 S499 F+600*
N4 M03*
N5 M08*
N6 G01 Z-.0116 F+400*
N7 G01 Y+.2647 Z-.0122 F+600*
N8 G02 Y+.3309 Z-.0299 J+.2441 K-.2218*
N9 G01 Y+1.0334 Z-.3426*
N10 G01 Y+1.5662 Z-.0233*
N11 G02 Y+1.7423 Z-.0148 J+1.6638 K-.2193*
N12 G01 Y+3. Z-.5745*
N13 G01 X+.02*

Etc etc....