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Messages - ministeam

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21
hi
i use the C3 on my denford orac cnc lathe & it works very well , i think your problem is that the slot in your disk is not wide enough i think mine is at least 1/2" wide & this works well for spindle speeds up to 2000 rpm & threading at 600 rpm
robert

22
General Mach Discussion / Re: Threading on lathe issues
« on: May 10, 2015, 02:39:33 PM »
hi
i have a denford orac lathe  & do a lot of threading on this machine doing a thread of 1mm pitch this is done at 600 rpm both for internal & external threads , a 1/4" bsp thread 19 tpi is done at 250 rpm
i am using the parrallel port to run my machine and using mach version 062 which i have found very stable over the last 12 months
i think the pick up slot on your spindle disc is not wide enough mine is at least 1/2" wide & i get a very stable speed with very little variation also very stable in the threading cycle . when threading the cycle is always started at 15 mm away from the job to give it time to pick up the pitch & settle itself before it starts cutting
robert

23
General Mach Discussion / Re: toolpost help needed
« on: January 15, 2015, 03:14:03 PM »
thank you for all your help i will have another look at the machine tomorrow
robert

24
General Mach Discussion / Re: toolpost help needed
« on: January 15, 2015, 03:03:14 PM »
hi
i am using version 062 of mach 3 which has been very stable over the last 6 months
robert

25
General Mach Discussion / Re: toolpost help needed
« on: January 15, 2015, 03:00:00 PM »
i have just noticed a mistake in an earlier post on the 1024 post about the error message it should read "selected tool slot number too large , =m6  t0705 "
before i fitted the indexing tool post i was using quick change tooling & used m6 t0101 or m6 t0202 for the tool changes with the first 2 numbers are tool number & second 2 numbers are tool offsets in the tool table
for the indexing toolpost  i have been using the same format for the calling of the tool change because of me manually operating the tool changes
robert

26
General Mach Discussion / Re: toolpost help needed
« on: January 15, 2015, 11:00:36 AM »
hi
i have attached here my macro file hope this is the one you want
i managed to install the 1024 screen this morning but when i loaded the g code program as posted yesterday i am getting a message  "selected tool slot too large , Block = M6 T0705 "
what could be causing this message , do i need to alter some setting to allow for the toolpost
robert 

27
General Mach Discussion / Re: toolpost help needed
« on: January 15, 2015, 02:24:46 AM »
hood
how do i load the screen set that you suggested ?
thank you
robert

28
General Mach Discussion / Re: toolpost help needed
« on: January 15, 2015, 02:07:56 AM »
thank you hood
i will get the information you require today when i go to my workshop & post later today
all the best
robert

29
General Mach Discussion / toolpost help needed
« on: January 14, 2015, 11:36:06 AM »
hi
i am in need of some help i have just made an 8 station indexing turret for my denford orac lathe at the moment this turret is being indexed manually until i can find the spare time to convert to stepper motor drive .
today is the first time i have used this  but it is not using the correct tool offset number on a tool change , i have enclosed the program i was using when this was happening
the program uses 2 tools , when using tool T0101 it was finding the correct tool 1 offset but when it was was using the other tool T0705 it was using 07 as the tool offset , has anybody any idea's as why this is happening
robert



30
General Mach Discussion / Re: G76 Lathe Theading Problem
« on: December 04, 2014, 03:07:14 PM »
hi
this is the way i write my code for threading on my denford orac cnc lathe , all my code is hand written because i could not get on with wizards
i am using version 062 of mach 3 , with the parallel port

this is my code for a m12 x 1mm pitch external thread
G0 X40.00 Z40.00  (tool change position)
G0 G40 G18 G80 G50 G90 G95
M6 T0505  (external threading tool)  
M3 S550  (spindle speed
G0 X12.00 Z15.00 (threading start point
G76 X10.78 Z-8.90 Q1 P1.000 J0.080 L45 H0.250 I29 C0.250  (thread cycle )
hope this helps you
robert

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