Messages

171

General Mach Discussion / Re: another tool change question , g32 g25 g28 ???

« on: September 09, 2008, 11:13:14 PM »

well that should do exactly what we are after then , will give it another whirl in the morning

172

General Mach Discussion / Re: another tool change question , g32 g25 g28 ???

« on: September 09, 2008, 11:06:04 PM »

I am pretty sure my dad tryed g53 and it moved the z axis to a point called out relative to the tool offset in the spindle not the home switch

173

General Mach Discussion / Re: another tool change question , g32 g25 g28 ???

« on: September 09, 2008, 10:41:34 PM »

I think the problem is if I enter z zero on the settings page it brings the z axis to the z zero of the tool thats in the spindle and we need to to go up to absolute machine zero against the home switch  ( or some set distance from the home switch) regardless of what the tool offset is

174

Works in progress / Re: Mach3Turn - 1st 'Beta' release of the SilverBlue Screenset for lathes

« on: September 09, 2008, 10:29:51 PM »

I have been using this screenset for about 6 months now and really like it , is there anyway i can easily add an MDI line to the automatic/cycle screen? There is an unused black bar right below the tool path that looks ideal , would save a few steps when i need to type in a tool change command .

Also i notice the arrow keys on my keyboard work fine for jogging the machine when I am in the manual screen but are disabled when on the automatic screen

175

General Mach Discussion / another tool change question , g32 g25 g28 ???

« on: September 09, 2008, 09:53:14 PM »

Just curios how to easily get the z axis to return to a preset point , pref z home , when I call out m6 T** ?

My Milltronics uses g32 to return the head  to the tool change position  which can be defined in setup as z** relative to the home switch , I believe the Centroid my Dad has been using uses g25 Z H0 to return the z axis to the home switch when m6 is called out . We have been playing with g28 z0 but it first plunges the tool to the part zero then retracts to the home switch which in some situations will cause tool or part breakage .

Is there a simple line that could be easily added to the m6 macro that will cause the z axis to retract to the home position everytime m6 is called out?  The machine is a fullsize bridgeport clone and we need it to retract the z axis to the same point everytime for a tool change so the drawbar will be in the correct position for the power drawbar.

Thanks Richard

176

General Mach Discussion / Re: parallel ports, serial ports, case fan cutouts..oh my!!

« on: September 02, 2008, 09:29:25 PM »

newark and digikey have some for download , not a library but some of the individual items have dxf files to download

177

General Mach Discussion / Re: VFD and noise questions

« on: September 01, 2008, 11:04:05 PM »

Well thanks for all the advice and help , with the patience and help of Chaoticone on the phone we went thru all the settings and got it all tuned up . As mentioned in his post above the pulley settings seemed to be the problem .  Not sure which of these settings solved the problem but here are screen shots of the three screens where changes were made that solved my problem . Maybe these will help somebody else down the road

s1750 now gives 10.04v at the analog out  , s875 = 5.09v and the actual rpm of the motor is within 10-15 rpm of the speed called out

Thanks Guys

178

General Mach Discussion / Re: VFD and noise questions

« on: September 01, 2008, 09:11:38 PM »

I am going to drop him a line in a few minutes but to be honest his BOB is doing everything correctly , when i call out m3 it closes the contacts on the mechanical relay just like its supposed to and it properly adjust the analog out put thru the full range from 0-10volts depending on the s value so I really dont think its a problem with the board. I have 2 other identical boards purchased at the same time wired just the same that are working perfectly. The only diff is both those machines are running much earlier versions of mach and teco VFD , this one has a 30hp automation direct VFD . I was also running a much later version of mach.

When I installed the earlier version of mach 2.** after the later version 3**is there anything special I need to do to uninstall the newer version ? or is it ok to install as if I am upgrading

179

General Mach Discussion / Re: VFD and noise questions

« on: September 01, 2008, 08:38:27 PM »

its set 1 to 1 , 1750 rpm   

180

General Mach Discussion / Re: VFD and noise questions

« on: September 01, 2008, 08:23:27 PM »

no its turning the motor on and off just like its supposed to . I have tested it with indicator lights and with the VFD and it turns everything on and off properly . The problem is when it does I get the watchdog message and the program goes into estop even when the VFD is not hooked up .