3D Printer @Jenschr

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Name BAMM (Big Alu Makeblock Mendel)
Description BAMM is a derivative of the Mendel90 but with clear inspiration from Lulzbot TAZ
License GPL
Author Jenschr (design)
Based-on Mendel90
CAD Models none
External Link Build Log

Links to more information

Build log, http://forum.makeblock.cc/t/3d-printer-build-log/537/

Advantages of this 3D printer compared to other printers http://flashgamer.com/arduino/comments/project-makeblock-3d-printer

More pictures from the build: http://jcprojects.tumblr.com/tagged/3D-Printer

Bill of Materials

This is the complete list of required parts to build this printer (Bill of Materials/BOM):

Part name # of parts used USD per part USD total Where is the part used on the printer?
Beam2424-512 10 12.99 129.90 Main structure
Beam0824-192 (4-pack) 6 5.25 31.49 At the ends of the Y-axis, 4 as the main frame supporting the build platform
Beam0824-144 (4-Pack) 1 4.25 4.25 Filament spool holder. This is the part attached to the main frame
Beam0824-128 (4-pack) 8 4.00 31.98 4 under Y-axis and 4 as spacers in the main structure
Beam0824-112 (4-Pack) 2 3.75 7.50 Filament spool holder. These parts extend the holder to make it more sturdy
Beam0824-096 (4-Pack) 4 3.25 12.99 4 as spacers above electronics
Beam0824-048 (4-Pack) 1 2.00 2.00 1 used below the 192-beam for the Y-axis limit switch
Beam0824-032 (4-pack) 2 1.75 3.50 As spacers attaching the Y-axis to the main frame
Beam0824-016 (4-Pack) 1 1.00 1.00 1 tiny spacer to extend the 192-beam so the Y-axis limit switch fits
Hardware Pack (bunch of screws) 1 24.99 24.99 Lots of screws required. Haven't counted them all yet
Linear Motion Shaft D8x496mm 8 13.99 111.92 4 for Z-axis, 2 for Y-axis, 2 for X-axis (these two are cut to 440 mm each)
Linear Motion Slide Unit 8mm (Pair) 11 6.50 71.45 4 for Z-axis, 3 for the carriage on the X-axis, 4 for the build platform on the Y-axis
42BYG Stepper Motor Bracket 4 8.99 35.96 2 for Z-axis, 1 for Y-axis (under platform), 1 for X-axis
42BYG Stepper Motor 5 19.99 99.95 I have used 17hs8401 steppers (57N/cm) on all axes with 5mm shafts for extra torque, but price should be similar
Me Micro Switch 3 2.99 8.97 One homing-switch (minimum position) on XYZ axis
Nylon Pulley with bearing (4-Pack) 2 3.25 6.50 Used on the stepper bracket for the Y-axis. These must be perfectly centered to avoid print-errors!
Bracket P3 (Pair) 2 1.995 3.99 Holds rods for X-axis
Bracket 3x3 (4-Pack) 8 1.75 13.98 4 at the bottom of Z-axis rods, 1 holding the limit switch for the X-axis, 1 holding the print-fan, 2 on X-axis belt
Bracket U1 (Pair) 4 2.00 7.98 At each end of the X-axis, plus one at the end of the Y-axis, One holding tube that feeds plastic from spool
Bracket L1 (Pair) 4 1.25 4.98 Holds the top of the Linear Motion Shafts on the Z-axis
Belt Connector (Pair) 4 1.50 5.98 Two holds wiring from X-axis in place, one holds the belt, one holds the end at the Y-axis switch
Plate 3x6 (4-Pack) 18 1.25 22.46 4 fixes X-axis to main frame, 14 provides spacing at the Z/X-axis bracket, remaining hold bottom plates in place
Plate 7x9 (Pair) 11 2.00 21.95 4 for the corners of the build platform, 6 for the Z/X-axis bracket, 1 holding the Y-axis motor
Plate I1 (Pair) 2 2.49 4.98 Fixes Y-axis stepper to the main axis beams
Makeblock parts 122 670.61
E3d hotend 1 75.00 75.00 v6 HotEnd Full Kit - 3.00mm Direct (GBP 43)
5:8mm coupling 2 5 10.00 Couples the Z-axis stepper/screw
470mm threaded rod, 8mm thick 2 3.50 7.00 Z-axis threaded rod
35mm long 8mm nut 2 1.00 2.00 Couples X-axis to Z-axis
50mm fan with cover 1 9.00 9.00 Electronics fan. Very much required since the motors will pull 1.8A
50mm blower fan (K1BO) 1 5.00 5.00 Printing fan. Directs a steady stream of air to cool the print when required
Megatronics, stepsticks 1 165.00 165.00 Main electronics based on Megatronics 2.0, 5 x Polulu DRV8825
12V/400W power supply 1 42.00 42.00 Powers it all
Custom heatbed element 300x300mm, 12V 1 50.00 50.00 Allows for ABS printing
Custom alu plate 300x300x4mm 1 30.00 30.00 Distributes heat from the heating element
Blue 10 mm expandable, flat braided sleeving 5 0.70 3.50 Found on Ebay. Used for cable management.
MK8 extruder gear & 606Z bearing 1 12.00 12.00 Found on Ebay
Electronics & 3DP parts 19 410.50
3D printed extruder parts 1 5.00 5.00 Estimate. Could be CNC'd from aluminium to look perfect :)
3D printed extruder bracket (11x7) 1 5.00 5.00 Estimate. Could be an aluminium 11x7 plate with a 6mm drill hole + two cuts to resemble plastic version
Springs, 7mm inner, 9mm outer, 22mm height 4 1.50 6.00 Springs for bed leveling. Found at http://stores.ebay.co.uk/We-Do-3D-Printing
Printed & various other parts 6 16.00
Total 147.00 1097.11