rowiac
Full Member
Posts: 230
Location: California
Machine: M3
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Post by rowiac on May 3, 2019 16:10:16 GMT
Looks like it went together well. I hope you have some material to try it out on.
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 4, 2019 1:46:46 GMT
Looks like it went together well. I hope you have some material to try it out on. Thanks! It is going together very well. For now I have small wood blocks I'll be using for testing and fine tuning. After that I plan on cutting everything from wood to aluminum!
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 4, 2019 1:48:55 GMT
Finished up all of the mechanical assembly this morning and did a little wire routing. I'll clean up the wiring after testing. Attachments:
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 4, 2019 1:53:50 GMT
I have the electronics mounted and hooked up for the x-y&z axis. Plugged everything in and IT WORKS!!! I have a video of it working but I don't know how to insert it here. Tomorrow I will get the spindle wired in and do some testing and fine tuning. Attachments:
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jvenn
New Member
Posts: 25
Machine: Other
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Post by jvenn on May 4, 2019 2:06:09 GMT
Looks like your assembly is going really well. I recently assembled an M3 and, like you, finished it in glossy black before putting things together. Thanks for sharing your progress.
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Post by Derek the Admin on May 4, 2019 2:18:30 GMT
Congrats on the build!
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 4, 2019 19:46:25 GMT
Spindle controller is wired in. The spindle sounds great! Now I'm off to find the instructions for controlling it from the program. I should be able to get that wired up and tested today! Wow that was easy! re-flashed the Arduino with "MillRight_CNC_Model_M3_Grbl_PWM_Homing.hex" that I found here. Did a little re-wiring and now I have programmable spindle speed! I think one of my first projects will be to build an enclosure for the electronics and then a hand held control for manual operation. Attachments:
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 6, 2019 22:27:46 GMT
Spent most of the day re-compiling grbl 1.1f with variable spindle and home switches. Finally got it done AND working! I'll post the changed files once I get everything tweaked. I'm just starting to get the spindle trammed in and the x-y axis squared up. Below is my setup for tramming the spindle. It's just a simple metal bracket (light fixture mounting bracket) bent at 90 degrees and with an M4 bolt to hold the assembly in the spindle collet. First check on my machine shows the spindle leaning about 1.5mm in X and about half of that in Y. I'll get this straightened out then mount a square to the table and indicate that to make sure X & Y are perpendicular. I have friends in town so may be a couple of days before I can get back to it. Always something going on! I thought retirement was supposed to be boring??? Attachments:
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Post by Bruce on May 7, 2019 3:36:08 GMT
You can post a video using YouTube. Upload the video to your Youtube account and then post the link here on the forum. You can flag it as private if you don't want anybody to find it in a search.
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 8, 2019 2:16:26 GMT
I trammed in the spindle. It came in pretty easily, only out .02-03mm I adjusted it in the X axis direction by loosening the spindle mount bolts and twisting the mount to get equal indicator readings at X+ and X- The Y axis direction was adjusted by tilting the X axis rail forward or back to get equal indicator readings at Y+ and Y-
The indicator is .01mm per graduation.
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 8, 2019 2:22:33 GMT
he X - Y axis are not perpendicular to each other. The are out about .5mm. I bolted the square to the table and indicated the X axis side to get it parallel to X. When I then indicate the Y axis side it is out .5mm. I can think of a few ways to adjust this but I'm not sure what would be the best way to bring this in to less than .02mm Has anyone adjusted this?
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Post by Derek the Admin on May 8, 2019 16:02:26 GMT
This can be adjusted by moving the X rail back or forth within the free fitment range.
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 10, 2019 1:21:13 GMT
This can be adjusted by moving the X rail back or forth within the free fitment range. I was able to get the X - Y perpendicularity down to .1mm over 10" of travel and the spindle tram to .1mm over a 10" circle. I had to go back and forth between spindle tram and the X - Y perpendicularity to get all to come in. Looks like .1mm all around is the best I can do. Is this whats expected with the M3 or should I be able to get better? I did some test cuts in wood with a 6mm end mill. A .5mm width of cut 12mm deep at 500mm/min and 12K rpm started to jump a little bit but not to bad. Anything less than that sounded and look pretty good. Would this be considered about normal? Overall I'm very happy with the machine so far. Going to start my first project tomorrow!
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Post by Bruce on May 10, 2019 4:11:01 GMT
Is that a step down cut of 0.5mm (down 24 steps) to 12mm deep or did you cut 12mm deep all at once with the 6mm end mill?
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charleyann
New Member
Posts: 29
Location: Las Vegas, NV
Machine: M3
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Post by charleyann on May 10, 2019 4:20:25 GMT
Is that a step down cut of 0.5mm (down 24 steps) to 12mm deep or did you cut 12mm deep all at once with the 6mm end mill? 12mm deep all at once in Z with .5mm radial width.
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