Messages

121

General Mach Discussion / Re: output 3 oem codes?

« on: February 06, 2013, 04:49:31 PM »

well i guess the simple thing is to move it to the next free output number 5

122

General Mach Discussion / Re: output 3 oem codes?

« on: February 06, 2013, 11:11:39 AM »

does that go for on the screen buttons as well?

123

General Mach Discussion / output 3 oem codes?

« on: February 06, 2013, 07:42:07 AM »

hi cant find the codes to switch output 3 on and off any ideas?
  Tony

124

General Mach Discussion / switch mode power supplies in series?

« on: February 02, 2013, 01:43:13 AM »

switch mode power supplies in series? can it be done? I remember being told that it could be if the psu had a pin to connect them which matched the frequencies? not sure ,i have got a box full of 24v 2amp smps that I would like to use though, and being able to link them for more amps or volts would be handy.

  Tony

125

General Mach Discussion / Re: unwanted creep in jog mode?

« on: January 24, 2013, 05:07:20 PM »

well thats the next step,trouble is i just cant tell immediatly

126

General Mach Discussion / Re: unwanted creep in jog mode?

« on: January 24, 2013, 03:43:42 PM »

Jim its not just the x axis,last night it was creeping on z,x & a simultaneously

    Tony

127

General Mach Discussion / Re: BT30 spindle from scratch - with power drawbar and ATC of course

« on: January 21, 2013, 07:52:17 AM »

there are belleville washers and then there are disc springs which are the Items that you should use, On vehicle leaf springs its advisable not to grease between the leaves as it attracts grit and forms a grinding paste,or so ive been told! probably a good thing in our application to lubricate though!
Tony

128

General Mach Discussion / Re: BT30 spindle from scratch - with power drawbar and ATC of course

« on: January 21, 2013, 03:56:36 AM »

Well thats nice but OTT, compared to my method,plus Ive a few of my cylinders that I can just add to increase the power.
As far as Bellvilles are concerned Ive used thinner than usual washers and put them in ,in sets of 3 back to back my thinking being that they will be more supple,abit like a leaf spring,seems to work

Tony

129

General Mach Discussion / Re: BT30 spindle from scratch - with power drawbar and ATC of course

« on: January 20, 2013, 06:43:58 PM »

Himmy, will it be controlled by a single hi/low signal?

  tony

130

General Mach Discussion / Re: BT30 spindle from scratch - with power drawbar and ATC of course

« on: January 20, 2013, 05:57:37 PM »

If anyone's interested,Ive just made power draw bar for my tool changer,used a stack of belvilles,a 20mm spring collet ala tormach.
 To power it I used 2  50mm dia 20mm stroke air cylinders in parallel,with a bar joining the 2 piston rods, that in turn operates on a pivoted crank arm giving a 3-1 advantage,its got loads of power I can plough a 18mm dia ripper 10mm deep through ali at 250mm pm no problems no slip, good enough for me and most folks I guess ?

My first attempt was a large stepper with a 1.5mm pitch lead screw operating the 3-1 lever I had micro switches, and a logic circuit controlling it.All i can say is it cost me a fair amount of time and money and never really worked reliably, and even with all that mechanical advantage it never really had the grunt.I would advise from my own experience don't go down that route!
 

Tony