Upload
jgeisler0303
View
8.880
Download
13
Embed Size (px)
DESCRIPTION
See how I built my MDF CNC milling machine using very simple tools and inexpensive materials.
Citation preview
The Goal
A DIY milling machineInexpensiveEasy to buildGood precision
The Tools
The Expenses
400€160h
Existing toolsOdds and ends
Years of DIY experince
The Method
Use inexpensivebut precisely pre-cut
MDF platesto achieve
parallel edgesand right angles
The double layer plate base
Loose spacer
Pre-drill thru and thread for
Spax!
Putting the side walls an
Loose spacer
Mounting the back wall
Loose spacer
Right angle
(loose)
Fixing the back wall and the gantry pillars
Gantry pillar
Putting the gantry in
Gantry
Spacer (fixed)
Right angle and
reinforcement
The X-carriage
Mounting the X-carriage to the gantry 1
Gantry taken out again and upside down
Gantry bottom
Slide flush to gantry
Mounting the X-carriage to the gantry 2
Gantry
Use non-bevelled head!!!
Not attached
yet
Gantry top parallel to
gantry bottom
Slide flush to gantry top
The Z-carriage
Epoxy glued, very messy!
Mounting the Z-carriage to the X-carriage
Epoxy glued to avoid bracing, flat non-bevel headed screws would have been better!
Hole for screw driver to fasten slide to
X-carriage
The gantry had to come close to the front
Spacer parallel to back wall
New, second pillar
Preparing the frame forthe Y-table
Balsa wood spacer (glued)
The Y-table from underneath
(and a leadscrew and nut)
Putting a working table on the Y-carriage
The stepper mountings
drill file mount
Preparing the leadscrew bearings
Epoxy glued since no
radial forces occur
Make sure to get the other side parallel!
Preparing the leadscrew nuts
Fasten nuts to be glued in, protect the thread!
Gluing in the mounting nuts is not so easy
Leadscrew nut
Putting the leadscrew in the bearing
Teflon band
Self-retaining nuts
Chip and dust protection
Leadscrew and slides will die otherwise!
Iron and aluminium foil to bend the Plexiglas
The protection goes between the X-carriage and the slides
Z-carriage with leadscrew
All leadscrews assembled
The stepper adapter
Fixed from top with sunken head screw
Flex plastic tube and ziptie
Paper bellows to protect the slides and leadscrews
Bellows guide
U-profile to seal the sides
Mounting the router
Pipe clamp and wooden jaws
Zipties keep the world together
Vacuum hose
The arduino running grbl and the three pololu stepper drivers
ATX power supply, 12V is not much but sufficient for now
Limit switches
X-limit
Z-limit
Jog wheel encoder and abort button
Recycled timer switch as a TLL SSR housing
Don’t forget the varistor, motors are
inductive loads
Thank youand good luck