Small Machine CNC 100 posts needed.................
Posted by
wanliker@a...
on 2001-05-10 14:14:31 UTC
I am slowly modifying a Sherline mill for CNC in my home shop. I mounted the
mill on a cheap Chinese surface plate, and it makes for a very flat and
stable mount, and very stable from tipping. I mounted the Steppers direct
150 oz./in. With the X on the left side, and the Y out the back, this made me
dig a tunnel thru the Z axis base for the Y leadscrew.
I still need to drill and tap two holes for the Z axis, and make 4 spacers
for the Z mounts. I used the motor mounts that Dan Maush published in a Nuts
and Volts Magazine article. Drew them with Vector, did them manually on the
EMCO FB-2 mill. I silver-soldered extensions on the lead screws in the
lathe, came out nice and straight. I incorporated thrust bearings at the
stepper mounts for both directions of travel on all three axis of the
machine. I used the couplers that look like they are made with saw slits
going around the coupler, are solid couplers better here???
Now I need answers on lubricating the Sherline when I get it running, as one
could easily do more work with a Sherline in a month using CNC than a
lifetime of hand turning the knobs.
The power supply/drive is next, this one will be using the Camtronics 5 amp
boards. I plan to be able to use the same unit on other units in the future.
the boards are finished, and just need to finish the power supply and
associated wiring.
Software will be Vector, and CNCPRO.
The next machine to be modified, will probably be a small Prazzi lathe.
Pleas furnish some answers for my questions, and post how you built your
Sherline, or other small machine.
Thanks, bill
mill on a cheap Chinese surface plate, and it makes for a very flat and
stable mount, and very stable from tipping. I mounted the Steppers direct
150 oz./in. With the X on the left side, and the Y out the back, this made me
dig a tunnel thru the Z axis base for the Y leadscrew.
I still need to drill and tap two holes for the Z axis, and make 4 spacers
for the Z mounts. I used the motor mounts that Dan Maush published in a Nuts
and Volts Magazine article. Drew them with Vector, did them manually on the
EMCO FB-2 mill. I silver-soldered extensions on the lead screws in the
lathe, came out nice and straight. I incorporated thrust bearings at the
stepper mounts for both directions of travel on all three axis of the
machine. I used the couplers that look like they are made with saw slits
going around the coupler, are solid couplers better here???
Now I need answers on lubricating the Sherline when I get it running, as one
could easily do more work with a Sherline in a month using CNC than a
lifetime of hand turning the knobs.
The power supply/drive is next, this one will be using the Camtronics 5 amp
boards. I plan to be able to use the same unit on other units in the future.
the boards are finished, and just need to finish the power supply and
associated wiring.
Software will be Vector, and CNCPRO.
The next machine to be modified, will probably be a small Prazzi lathe.
Pleas furnish some answers for my questions, and post how you built your
Sherline, or other small machine.
Thanks, bill