yet another CNC hopefull
Posted by
lope_475
on 2003-09-10 07:36:49 UTC
Greets
excellent group
only have 40,000 more posts to read till i am caught up. :-)
i am looking to design and build a micro gantry for hobby use, "on the
cheap" of course.
my shop has DRO mini lathe and mill, good materials selection, and a
motivated monkey.
here is the basic framework with some availability notes for completeness.
CONTROLS:
Power Supply: ATX 12VDC computer power supply - on hand
Drives: xylotex 3 axis drive - on sale now
Steppers: the 116in/oz RFE's at the bottom of xylotex's "Accessories"
page http://www.xylotex.com/xs-conn.htm
Interconnects: TBD - most on hand
Enclosure: fan cooled - size TBD
MACHINE PARAMETERS:
Base: fixed base will be 1018 plate - on hand
Table: more 1018 as weight is not a factor - on hand
Bridge: anything that moves will be 2024 aluminum - on hand
Linear Bearings: open friction bearings on hard and ground
semi-supported shaft for X and Y - sizes TBD
Translation Screws: direct drive, precision acme with compensation
nuts - no sources yet, sizes TBD
Couplers: homebrew
Spindle: dremel whip extention with dremel mounted remotely above. -
several on hand
the intent is to do PCBs, delrin, nylon, and light milling in 6061 and
maybe 2024 aluminum.
love to hear any thoughts on work envelope sizes that would be
acceptable for this motor size and machine config. or anything about
this setup. i have not done any tool load, frictional or inertia
calculations for this yet, i know thats where i should start.
was thinking 8x10x3 or 10x12x3 (XYZ)
am i way off here?? sorry for the long post.
C Cowley
-adidaCNC
excellent group
only have 40,000 more posts to read till i am caught up. :-)
i am looking to design and build a micro gantry for hobby use, "on the
cheap" of course.
my shop has DRO mini lathe and mill, good materials selection, and a
motivated monkey.
here is the basic framework with some availability notes for completeness.
CONTROLS:
Power Supply: ATX 12VDC computer power supply - on hand
Drives: xylotex 3 axis drive - on sale now
Steppers: the 116in/oz RFE's at the bottom of xylotex's "Accessories"
page http://www.xylotex.com/xs-conn.htm
Interconnects: TBD - most on hand
Enclosure: fan cooled - size TBD
MACHINE PARAMETERS:
Base: fixed base will be 1018 plate - on hand
Table: more 1018 as weight is not a factor - on hand
Bridge: anything that moves will be 2024 aluminum - on hand
Linear Bearings: open friction bearings on hard and ground
semi-supported shaft for X and Y - sizes TBD
Translation Screws: direct drive, precision acme with compensation
nuts - no sources yet, sizes TBD
Couplers: homebrew
Spindle: dremel whip extention with dremel mounted remotely above. -
several on hand
the intent is to do PCBs, delrin, nylon, and light milling in 6061 and
maybe 2024 aluminum.
love to hear any thoughts on work envelope sizes that would be
acceptable for this motor size and machine config. or anything about
this setup. i have not done any tool load, frictional or inertia
calculations for this yet, i know thats where i should start.
was thinking 8x10x3 or 10x12x3 (XYZ)
am i way off here?? sorry for the long post.
C Cowley
-adidaCNC