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Rank: Member
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Joined: 7/18/2009
Posts: 26
Points: 78
Location: williamsport
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so after doing a little research i am redoing my x2.
some of the mods are c-channel column bracing, hydraulic cement filling or epoxy filling the column, treadmill motor and controller upgrade, belt drive, spindle bearing replacement with SKF bearings. Once all that is done i am going to make new brass gibs and then lap the surfaces.
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Rank: Member
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Joined: 7/18/2009
Posts: 26
Points: 78
Location: williamsport
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so the spindle motor has been harvested along with choke and controller. http://www.youtube.com/watch?v=JFAWb6WfLWEhttp://www.youtube.com/watch?v=iSqz4HvF-6chttp://www.youtube.com/watch?v=IaqCPydEfuwNow i am bending up a 20 gage sheet metal box and top to mount all the electronics stuff. I am housing a 3 way swith to go from pc to manual spindle control like hoss, the mc-60 controller, the motor choke the c-10 board, the c-23 board, the c-6 board, stock e-stop a forwar and reverse 3 way switch, and 4.7 POT. I already have the column and spindle a part for changing the bearings to the needed ones.
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Rank: Member
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Joined: 7/18/2009
Posts: 26
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Location: williamsport
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got the column brace material. I have 2 options: 1. a 4x4x1/4 square tube that goes all the way up the column. I no longer have the control box on the back so i can brace all the way up. 2. I have a section of 5x1/2 c-channel that will go all the way up the back. which would be the better choice? I also figured out the belt drive base late that i will use to mount the 2 hp motor without interfering with the z axis ballscrew and mount. I will use the belt drive base plate to also adjust the x axis tram tool devised by john sheperd( http://www.homemodelenginemachinist.com/index.php?topic=6007.0 post#11). I am also putting tramming adjusters on the side of the spindle carriage as found on cnccookbook( http://www.cnccookbook.com/CCMillTramAdj.html http://www.cnczone.com/forums/showpost.php?p=745618&postcount=324. ) So this is what i am working on now.
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Rank: Administration
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Location: Follansbee, WV
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i'd go with the 4x4 tube, should be much stiffer and less twisty than a c-channel.
Hoss
Gosh, you've... really got some nice toys here.-Roy Batty
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Rank: Member
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Joined: 7/18/2009
Posts: 26
Points: 78
Location: williamsport
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small update to the project...I bought some project boxes from radio shack to put all the electronics in for now. I received the .1263" oversized ball bearings. The original ones were right at .125" and left about .006" backlash. With these new ones the backlash is less than .0005 so far. That is better than expected. As for the spindle motor, that is a little more of a pain in the a$$. I designed an initial motor mount and belt drive. Matched the motor up to it and forgot to change the motor plate over to the new motor. I am an idiot and waste time. So now i am sitting at my computer designing the proper motor mount plate and will have to wait til friday at earliest to get the new metal to make it.
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Rank: Member
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Joined: 7/18/2009
Posts: 26
Points: 78
Location: williamsport
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the motor plate to the new belt drive is officially designed and tested on card stock paper. it fits the motor and will now go on to machining. I have to drill holes in the motor flange as it was blank so that is the next order of business.
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Rank: Member
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Joined: 7/18/2009
Posts: 26
Points: 78
Location: williamsport
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hoss,
i got the project box done to house all the parts. Now i am trying to figure out what all i will need. I have the c10, c6, a 10a@125VAC double pole triple throw switch (part#R13-8E-SC3), a 15 a circuit breaker, 10k pot, and the e stop switch from the x2. Any other electronics you can see that i need? And the big question any help on making a wiring diagram?
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