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M Ham

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  1. Who's Bob ?, Thanks for the kind words. Yes that picture you posted is indeed of the machine I was building in Mastercam. Had it in VeriCut for many years, just wasn't familiar with what Mastercam was looking for regarding kinematics info, VeriCut works a bit different. Implemented Mastercam a bit ago, just getting around to building all of our machines. We also have a FPT DinoMax gantry, among other 5 Axis mills/routers. Video of the Stinger from years back on YouTube. Another video of Woodland Trade Co. Inc., you'll see a quick clip of our FPT DinoMax 5 AX gantry at about 35 seconds in. Mike Ham_Machine Shop Manager_5 AX CNC Programmer
  2. Got It!, I drew one line through the spindle axis, and drew a 2nd line through the CL of A axis rotation. Where these 2 lines intersected is the P/L (Pivot Length). I made the line I created running through the CL of A axis rotation a factor of "1", or simply 1.0000". I then measured from one end of the line at the P/L to the other end of the line in XYZ. These measurements became the entries in the "Direction" fields. In this case X-0.642793, -0.416695, Z0.642793 to represent the 50 degrees & 32.96 degrees noted prior. Also, I was dealing with inaccurate info thinking the P/L was 26mm/1.0236, it ended up being -0.6295, a negative number, meaning it was actually below the spindle face, not above it. Seems to be working good. Thanks for the tip. Mike Ham_Machine Shop Manager_5 AX CNC Programmer_Woodland Trade Co. Inc. MachSim_Video_20230824_045738.mp4
  3. Hello, I have built a half dozen 5 axis machines or so without issue, all with pretty typical kinematics, however. I have a 5 axis machine with a rotary axis that does not align/rotate about X and/or Y axis. The A axis (“knuckle head”) on this machine is rotated about Z 32.96 degrees and rotated up from the XY plane 50 degrees. On the more conventional kinematic mills, A axis simply rotates about X, B axis about Y, etc. Within Mastercam Machine Sim (2023 Update 4), how do I change the angle of the centerline of rotation to replicate how the A axis of this machine head behaves? Also, the pivot length calculates out to about 1.0236”/26mm. Thank You, Mike. PICS: ISO View of mill, Top Down View of A axis "Knuckle Head", Front View of A axis "Knuckle Head".
  4. Thanks for all the great replies. I think I got my basic question answered as far as there being a function of Mastercam that would take care of this...NO. I do one-off work, every piece unique, so tedious editing is usually not an option due to time constraints. Yes, using a 3 tooth Carmex and coding it as a single tooth so it does one continuous spiral per Carmex recommendations. I will conventional mill only because this is the most efficient method I have to get code out quickly. I prefer climbing for what I feel is better tool life and the chips fall away from the cutter as you progress. Hoping to see something from Mastercam in the future as this is the only CAD/CAM software I have used that does not have a way to have an alternate feedrate for arc entries. Thanks for the other interesting ideas on how to deal with this situation. Regards, Mike
  5. Thread Milling an 8-32 hole. Starting at bottom of hole, "climbing" up. Code looks good, but I would like to apply a slower feedrate to the 1st arc that initially enters the cut. Most thread mill manufacturers will advise a 1/2 feedrate for this initial lead in arc. I have my plunge feedrate set to a slower feedrate than my cutting feedrate, but the plunge feedrate is applying itself to the entry from the straight move to the bottom of the hole. "Colors" even show the arc entry as a different color noting it's an "entry motion". QUESTION: How do I apply an alternate feedrate to the entry leadin arc? Using Mastercam 2023 Update 4. Thank You.
  6. I just rolled from Mastercam 2021 Update 1 to 2023 Update 4. “Verify” graphics don’t appear as crisp as 2021, particularly when “zoomed” in. In 2021 there was a progress bar labeled “Enhancing Model” that would continue to improve the appearance as you wait and/or move your part around. My question: Is this function still available, and if so, how do I enable it? Thank You, Mike
  7. @AHarrison1 Thanks, worked perfect. Appreciate the help. Regards, Mike
  8. I just rolled to Mastercam 2023 and installed all updates up to Update 4. I was at 2021 Update 1. I see the verify collision options has moved from the file/options tab (2021) to a dropdown “collision” button on the verify tab. OK, I got all that. My question/problem: I can alter the options by checking/unchecking, Tool vs. Fixture for example, but once I close Mastercam and open it up again, none of these alterations I make to the Collision Detection Options will stay “saved”. I must go back into the Options every time and make the changes I want. How do I get these changes to stay “saved”. Thank You, Mike

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