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Mill X-axis Powerfeed for G08689
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05-04-2023, 08:59 PM
No bench test for me today. I spent most of the day trying to figure out why the Arduino IDE couldn't see the Nano board plugged into my Linux computer. Got it working now so it's time to dive into doing PWM with the Nano board.
Ed 
05-04-2023, 09:35 PM
(05-04-2023, 08:59 PM)EdK Wrote: No bench test for me today. I spent most of the day trying to figure out why the Arduino IDE couldn't see the Nano board plugged into my Linux computer. Got it working now so it's time to dive into doing PWM with the Nano board. Permissions?
Logan 200, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, a shear with no name, ...
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05-04-2023, 10:13 PM
(05-04-2023, 09:35 PM)Vinny Wrote:(05-04-2023, 08:59 PM)EdK Wrote: No bench test for me today. I spent most of the day trying to figure out why the Arduino IDE couldn't see the Nano board plugged into my Linux computer. Got it working now so it's time to dive into doing PWM with the Nano board. No, it ended up being a conflict with the port being used by my USB keyboard and the USB-RS232 chip on the Nano. A program called "britty" that's used by the keyboard had to be uninstalled to fix the problem. That program is only used for people with sight impairment so removing it had no affect on the keyboard usage for me. Ed
05-05-2023, 03:39 PM
Have you ever made a boneheaded move that actually turned out in your favor?
7 months ago, I was making the frame for the Mrpete222 vertical engine and snapped off an endmill. My fault, there was way too much chatter, and I didn't back off quickly enough. Well, that prompted me to completely readjust the entire mill, tram the head and tighten the gibs. I got it working much better than before (that experience thing really pays off!), but I still had excessive backlash on the x axis, while the y axis play is nearly imperceptible. That was the impetus for me to make the power feed. Mill in one direction, return under power. Rinse and repeat. So, as I'm working on this project, I had to reassemble the table. Again, I noticed the extremely excessive backlash. Like nearly .1" of play. Well, it turns out that the leadscrew nut has 2 set screws holding it in place. I swear I didn't touch them when adjusting before. They were both backed out and the nut was just sliding around in the slot. I don't believe they've ever been tightened properly. I simply snugged them down, and now the mill is better than it's ever been.
Full of ideas, but slow to produce parts
05-05-2023, 06:31 PM
Good find. I have about .007" of backlash in my X axis and I haven't quite figured out what's causing it. I tightened the screw on the nut that's suppose to reduced the backlash but it didn't seem to help much. Maybe I'll get lucky like you did when I tear it down to install the power feed.
 Ed |
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