Messages

21

General Mach Discussion / Re: Connecting spindle to breakout board

« on: June 04, 2013, 07:06:30 PM »

Hi Roy, do you have the pnc3 version of the triac? have you still got your machine? I see your post was quite sometime ago. The initial wiring layout you gave is the same as mine, as well as the brown and prestel controller from the denford triac gsm manual, and I have been scratching my head over this spindle setup for a while now, now I have confidently connected the spindle up correctly. Did however get your machine running correctly as I am still a little confused with regard to the motor tuning setup, steps pe, vel, acc etc on the axis and spindle.

22

General Mach Discussion / Re: Alignment for two sided machining ?

« on: June 01, 2013, 08:00:48 PM »

Or if you don't want any holes in either side you could create a nest using dowel pins..

What shape is the outer profile of the work piece?

Ie, fix a slave plate to the table, if your work piece is square say 100mm x 100mm datum point middle middle, You know the edge is X50Y50X-50Y-50, using a 6mm spot drill, drill 6 locations at X53Y25, X53Y-25, X-53Y25, X-53Y-25, X0Y-53, X0Y53, place 6 dowel pins in these holes and then place your work piece in between them, and it will be square not matter which side you flip it and clamp accordingly. Also remove the pins if you plan to m/c the outer profile.

Obviously depending on what material you use for a slave board, will depend on your drilling process.

I use a type of model board called prolab or ureol, it's v robust stuff, you can easily drill a spot into it and the pin will be a nice tight fit, without having to drill n ream.

Also depending on the outer profile, that will dictate whether you need to programme it using cam or do it manually.

23

General Mach Discussion / Re: triac mach3 conversion

« on: May 25, 2013, 07:09:04 PM »

Thats excellent Jim, thank you. More food for thought

24

General Mach Discussion / Re: triac mach3 conversion

« on: May 25, 2013, 12:54:05 PM »

I too am more mechanical, this has been quite a learning curve.

I have ditched everything also, so hooking up what is left is a bit of an art, but I'll get there in the end.

Would you be able to copy your settings in mach3 in the motor output section, ie steps per/velocity/acceleration this may be where I am going wrong.

25

General Mach Discussion / Re: triac mach3 conversion

« on: May 25, 2013, 09:50:26 AM »

Thankx Jim, it is a little help, but If I'm correct I think your just using a relay output spindle drive, ie input M3 in mach and it switches on the motor, do you have an external control for the speed?. I am after the connection's for step/dir, if you see on your spindle board where you have that one green connecting block with the letters NO,C,NC as if you use step/dir signals there are 2 sets of those blocks RUN (step)-NO/C/NC and DIR(dir)-NO/C/NC, its these connections to a cable that I have coming from the original spindle drive that I cant work out

According to the denford gsm manual these cables represent -

Bn (Bk) 1 SPEED REF1 SIG
O ( Bn) 2 SPINDLE ON
Y ( R) 3 SPINDLE ON COMM
R (Y) 4 SPINDLE FWD
Gn (Gn) 5 SPINDLE DIRN COM
Be (Be) 6 SPINDLE REV
V (V) 7 SPINDLE OV
GY (W) 8 SPINDLE +12V SUPPLY

My connections were as follows -

(Bn) 2 spindle on TO Run NO
(R) 3 Spindle on comm TO Run C

(Y) 4 Spindle fwd TO Dir NO
(Gn) 6 Spindle Dirn com TO Dir C

 (V) 7 Spindle 0V TO 0V
(W) 8 Spindle +12V TO V-Out

As I say with these connections and mach3 set to relay output the spindle turned CW, but no speed control.
Except when I changed Mach3 to Use spindle motor output and step/dir control and disable spindlle relays box checked, nothing happened.... unless the wiring is correct and my initial setup in motor tuning is wrong?

26

General Mach Discussion / Re: triac mach3 conversion

« on: May 25, 2013, 06:42:12 AM »

Hi Jim,

I had emailed you direct regarding your setup. My spindle drive is a brown and pestel controller, home made BOB, but the connections are the same I have Step/Dir/Run outputs, I think yours is the pc version of the triac, so I think the spindle drive is different but I believe I only require 4 wires to get it running RUN - NO/C and DIR - NO/C, just dont which is relavent to which wire,and also the correct setup in Mach3

27

General Mach Discussion / triac mach3 conversion

« on: May 25, 2013, 06:24:22 AM »

I'm currently converting my triac pnc3, so far I have all 3 axis running, e-stop, and home switches, I have a shuttle prov2 hand wheel working, now am at a lost end whilst trying to link up the spindle drive.
I can get the machine to turn the spindle on/off via M3/M5 command using the spindle relay output, but this is no good as I dont have a separate controller for the speed. I am trying to connect up the step/direction setup but with no joy, and was wondering if anyone has a running setup using the original triac spindle cables, I have a sp4dc board but cant seem to get the correct wiring to the RUN NO/C/NC - DIR NO/C/NC connections, also if the correct setup on the mach 3 screens.

Motor Outputs -
Pin 17 - Step
Pin16 - Run
Pin 14 - Dir
Step/Dir port - 1

Output signals

Output#2 - port 1 pin 16

But not confident motor tuning is setup correctly

Any help would be greatly appreciated

28

General Mach Discussion / Re: Hall of shame

« on: May 16, 2013, 06:15:49 PM »

Hi for info, I have an official licence for my version of mach3, but whilst searching I've come across this site with 3 downloads.



Obviously the site is not to blame, as people post torrents to it for others to download and use, so maybe difficult to trace where the torrent originated from.



Edit; Link removed by Mod.

29

General Mach Discussion / Re: Conversion of Denford TRIAC milling to LPT

« on: May 11, 2013, 12:21:29 PM »

Hello Jim,

I have read that you have some drawings regarding your conversion, I am currently converting an' 86 pnc3, and have come into a few issues is there any chance you could forward me a copy of your drawings please.

jay.arms@live.com

Regards
Jason