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WeldingRod’s
Exactly Constrained
3D Printer
Plate Identification and Stuffing
Z Carriage motor side, looking from inside to
out
• Wheel with eccentric
• Wheel with spacer
• 5 screws with T-nuts, nuts this side
• Motor on far side
• Limit switch on far side
• Wheel with eccentric
• Wheel with spacer
Z Carriage Installed (outdated photo!)
Z Carriage, looking from inside to out
• Wheel with spacer
• Wheel with eccentric
• 5 screws with T-nuts, nuts this side
• Bearing (bearing socket and holder
behind and another holder on top)
• Wheel with spacer
• Wheel with eccentric
Bearing Installation
Shaft Bearing Holders
• These go on the outsides
• The bearing race fits in this one and in
the Z carriage plate
Y end mount, far side
• Wheel with spacer
• Wheel with eccentric
• Screw (25mm)
• Corner bracket (10mm)
Y End Mount Assembled
Y Assembly, Far Side (old photo)
Y end mount, motor side
• Wheel with eccentric
• Wheel with spacer
• Corner bracket (10mm)
• Screw (25mm)
Y Carriage
• Wheel with spacer
• Wheel with eccentric
• Corner block, flat to left (10mm)
• Corner block, flat on top (10mm)
• Wheel with spacer
• 25 or 30 mm screw with locknut on
this side, 4 places, 2 on bottom
must be there.
• Wheel with eccentric
Y Carriage (Draft Photo)
Y Carriage Assembled
Y End mount
• Wheel with spacer
• Corner block, flat to left (10mm
screw)
• Wheel with spacer
• Wheel with eccentric
• 25 or 30 mm screw with locknut,
nut on far side, 4 places
Y End Mount (Early Version)
X Idler
• Located on far end of X rail,
same side as the X motor
• Smooth Idler, this side
• T-nuts this side (8mm screws)
Y End Mount Installed (early version)
Y Idler, Far Side
• T-nuts this side (8mm screws)
• Smooth Idler, this side
Y Idler, Near Side
• T-nuts this side (8mm screws)
• Smooth Idler, this side
X Motor Mount
• M3 x10 mm screws, 4 places
• M3 locknuts
• Motor with pulley, far side
• T nuts this side (8mm screws)
X Motor Mount Assembled (old plate!)
X Endstop Mount
• T-nuts far side (10mm)
• End stop, top side
• Two, 3mmx10 screws with locknuts
• 10mm screw to Y carriage corner
block
X Carriage
• Wheel kit with spacer, precision shim,
and hotend plate
• Corner block (10mm) and Belt mount
• Wheel kit with spacer, precision shim,
corner block, X endstop, and hotend
plate
• Wheel kit with eccentric, precision
shim, 20mm spacer, and prox plate
Hotend Plate
• Tap this hole to 5mm or drill out,
use 12mm or longer screw to
hold on hotend clamp
• To X carriage
• Hotend
• To X carriage
• Tap this hole to 5mm or drill out,
use 12mm or longer screw to
hold on hotend clamp
Hotend Clamp
• Screw to hold it to hotend plate
• Hotend
• Hole to bolt on dial indicator for
levelling
• Hotend
• Screw to hold it to hotend plate
Prox Plate
• X motor side
• Screw to X carriage via spacers
• Prox here; mounts AWAY from X
motor, away from X rail
• X rail side
X Carriage Assembled
X Carriage Assembled
• Eccentric spacer
• Stack of spacers
X Carriage Assembled
X Endstop Plate
• Goes on corner of X carriage toward Y
motor. (10mm)
• Mounts with 10mm long M4 and nut
• Tab is on the bottom and points away
from X rail
• Long edge is on the bottom.
X Endstop Location
X Belt Plate
• Mounts on center block of X carriage
• Screws point away from Y and Z
motors
• 25 or 30 mm screws, locknut this side
• Mounts with corner block on far side
(10mm)
• Bottom edge
X Belt Plate Assembled (Old photo!)
Z Nut Mounts
• 4 start 8mm nut, flange on top
• 4 x 3mm by 16mm long screws
• 4 x 3mm locknuts
• 2 x M4 x 8mm screw and T nuts
• T nuts on bottom
Z Nut Mounts
Aligning the near side Z Screws
Aligning the Far Side Z Screw
Drilling Jig
• Line up left edge with end of
extrusion
• T-nuts and 8mm screws
• Drill here
Wire List
• Z motor 1
• Z motor 2
• Extruder 1
• Extruder 2
• Y motor
• X motor
• Heater 1
• Heater 2
• Thermistor 1
• Thermistor 2
• X endstop
• Y endstop
• Z Proximity sensor
Hot End Fan
• 2 wires
• 12 Volt powered, needs to connect to the +12/GND connector on the
RAMPS board
• This is not supplied with the kit
• I would think about 800mm or wire to start with
Hot End Thermistor Wires
• 2 sets of 2 wires
• Not sensitive to polarity
• These wires are likely to need extension; perhaps 300mm
• I need feedback on this one!
• I don’t know what the stock length is!
Hot End Heater Wires
• 2 sets of two wires
• Not sensitive to polarity
• These wires are likely to need extension; perhaps 300mm
• I need feedback on this one!
• I don’t know what the stock length is!
X End Stop
• 3 wires
• Sensitive to polarity
• This wire will need about 300mm of extension
Y Axis End Stop
• 3 wires
• Sensitive to polarity
• The stock wire should be long enough for this application
Z Axis Proximity Sensor
• 3 wires
• Polarity sensitive
• 12 Volt powered; needs to connect to the +12/gnd connector on the
RAMPS board
• LJ12A3-4-Z/BX may work without a resistor divider
• LJ12A3-4-Z/BY definitely needs a resistor divider
Extruder Motors
• These two motors’ wires should be long enough
X Motor
• This motor moves in two axis
• It will need an extension; I would guess at 300 mm more
Z Motors Wiring
• I recommend you wire the two Z
motors in series
• Here’s what it looks like when you
splice them properly.
• The connector that goes to the RAMPS
is hanging off to the left.
• The second Z motor connector is
coiled up next to the splices
• One motor has enough wire, if you
splice in the other one like I show you
will have plenty of wire.
• If you run back to the RAMPS with
both, get a 300mm extension