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Topics - mrmatt68

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General Mach Discussion / Rotary Setup / Feedrate questions
« on: July 11, 2017, 10:31:41 PM »

I setup a 4th axis on a china cnc 3040 cnc.  Everything is working after replacing all of the electronics and building a new control case to fit everything in.  I have 10 steps per unit and 75000 and 25000 in the motor tuning page.  I command A 360 in MDI and get 1 revolution and decent speeds when jogging so it seems all is well but when i run a program with a and y together at a feed of 100 the axis are barely moving (like 1 min to move 1/8 of an inch).  I currently have a feed rate of 7000 with FRO set at 250 to get a 'normal' speed.  Is there another setting somewhere that needs to be turned on?  mach 3 version .066 running through parallel port and setup units are in inches and program is inches.  Also i have set the federate to radius option under tool path and set radius to 1 inch on the settings page.



General Mach Discussion / Auto Zero and Tool Length Zero
« on: July 04, 2017, 01:18:24 PM »

I have tried several Macro's in order to achieve auto tool length zero but they always zero the fixture offset zero and not the tool zero.  I am putting the various macro's in the vb button Auto Tool Zero (this seems to indicate that it would set the tool length and not the fixture offset).  Here is a simple macro i have tried.....  

Message( "Auto Zeroing..." )
If IsSuchSignal (22) Then
code "G31 Z-3 F20"
While IsMoving()
Call SetDRO( 2, .060 )
code "G1 Z1"
End If

Will i need 2 touch plates?  All i would like to do is have all the fixture offsets at zero and hit the auto tool zero button and have the length set from machine home (z in the highest position).  It would be nice to set the fixture offset to table height and then have positive tool length offsets but I wanted to start with the simple stuff first.  What in the above code can i change to set the active tool offset in the tool information window?  I may be overthinking it but it seems that i could enter 3 in the tool information window load tool 3 in the spindle and hit auto tool zero and it shoiuld zero tool 3 tool length offset but every macro i have found zero's the z fixture offset that is active.  Is this a function of the M31 probe routine?

I am considering buying a screenset from CNC woodworker but i think it works the same way as what i have now.

Thank you in advance,


when setting IPM in motor tuning to 1000 IPM axis will run at 1000 IPM but when i slave the Y axis the display shows 1440 ipm and no actual speed increase on that axis.  Am I setting something wrong.  Occurs in lockdown release.  XYYZ machine configuration and the other axis seem to be fine.

Show"N"Tell ( Your Machines) / Matt's 4 x 8 CNC router
« on: June 13, 2006, 09:52:13 AM »

There are other pics from around the shop too.


Pages: 1