BOM Hangprinter v3 w Smart Steppers
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Bill of Materials for Smart Stepper driven Hangprinter v3
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Notes:
Last updated on Sep 18 2018.
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The Gitlab repo is the main source of updated information.
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Linked example parts give me (Torbjørn Ludvigsen) a small kickback if you buy.
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Stls are here:https://gitlab.com/tobben/hangprinter/tree/Openscad_version_3/openscad_stl
Download button in top right corner lets you download all at once.
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Layout pdf here:
https://gitlab.com/tobben/hangprinter/blob/Openscad_version_3/layout_a4.pdf
To download single stl file: Click it, then find the button who says "open raw". Right click that and choose "Save as".
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Build manual:http://hangprinter.org/doc/v3
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Usage:
Make a copy of this spreadsheet and start editing on your own.
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Printed parts
Qty per printer
Comment
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Beam Slider ABC 3End points for ABC-lines
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Beam Slider D3End points for D-lines
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Corner Clamp3
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Extruder Holder1May get hot. Use heat resistant plastic.
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Lineroller ABC Winch3
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Lineroller D3
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Lineroller Anchor template2The stl contains 2. Print lineroller_anchor_template.stl once.
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Lineroller Anchor6The stl contains 2. Print lineroller_anchor.stl 3 times per printer.
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Motor Bracket4May get hot. Use heat resistant plastic.
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Motor Gear4
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Spool4
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Spool Gear4
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Spacer4
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Spool Core4
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Cable Clamp12Give or take a few
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Layout12d-printed part
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Mechaduino standoff32May get hot. Use heat resistant plastic.
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Vitamins
Qty per printer
CommentExample part
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Nema17 steppers5
> 40 N/cm holding torque, flat shaft. Reduce to 4 per printer if other motor used for extruder.
ebay
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FireLine 0.5 mm60 m
0.39 mm also works. It makes a big difference how long you cut the lines. See http://forums.reprap.org/read.php?1,792937,809736#msg-809736
ebay
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MDF or plywood sheet50x50 cmThickness 10-14 mm
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Arduino Mega1ebay
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RAMPS1
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Stepstick driver1For extruder motor
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USB cable, type B plug1
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40 cm rectangular/square beams3Widths from 12.5 mm to 17.5 mm supported, 15 mm recommendedebay
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27.5 cm rectangular/square beam1ebay
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Power supply112 V, 12.5 A or higher recommendedebay
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Zipties18Widths between 4 and 5 mm recommendedebay
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M3 screws, length 5 mm16ebay
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M3 screws, length 12 mm12ebay
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M3 screws, length 45 mm?16
Ca 1 cm longer than your motor body height. For mounting Mechaduino PCB on motor rear.
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M3/M4 screws, length 14 - 20 mm4For attaching PSU to sheet
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608 bearings8ebay
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623 V-groove bearings12ebay
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PTFE tube10 cmStandard bowden, 4 mm outer dia, any inner diaebay
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Self tapping wood screws ca M3x10ca 90M[2.5-4.5]x10, head diameter 8-14 mm, non-countersunk. For fastening to ceiling plateebay
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Self tapping wood screws M4x454For fastening spool core.ebay
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Self tapping wood screws M2x[6-14]4Head diameter ca 4 mm. For mounting Mega onto sheet material.ebay
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Self tapping wood screws M3x1018
Head diameter 7 mm, length 10 mm. Countersunk head. For attaching linerollers on ABC anchors.
ebay
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M6 or M8 washers4For capping 608 bearings in place on top of spool core
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15-lead ribbon wire5 mOr 30-lead 28AWF with quadrupled wires to/from the heater element.ebay
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M3 Nuts12ebay
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Extruder + hot end1Any setup that fits Nema17 mount will work
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Red and black power cableca 2.5 mFor connecting 12 V to RAMPS and Mechaduinos
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Smart Stepper PCB4Mechaduino versions 0.2 and 0.1 are also ok.
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Jumper cablesca 507 colors is enough to color-code everythingebay
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5V regulator1
For powering Mechaduino directly from PSU. Recommended for reliable long term operation.
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5V->3V3 level converter1For i2c RAMPS<->Mechaduino. Small breadboard handy for connecting this.ebay
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Preparing a wiring loom
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If you want to prepare a wiring loom, these are some suggested wire lengths and connectors. They assume you lay out your electronics like shown
here
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You find a corresponding layout_a4 pdf
here
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You also need to solder pins to the Mechaduino's D0, D1, 20, 21, V+, GND, 5V, and 3V3 connectors.
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This guide also doesn't include a wire for 5V power to the Mechaduino. Instead it assumes you've soldered a 5V regulator (for example a L7805CV or R-78E5.0-0.5)
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The wiring diagram should be at the bottom of the assembly manual linked above. A direct link to the wiring diagram is provided
here
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Same color means same signal, but not neccessarily same voltage, since i2c signal is converted between 3V3 and 5V.
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A step/dir
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female51 cmmale-------
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female51 cmmale-------
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B step/dir
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female40 cmmale-------
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female40 cmmale-------
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C step/dir
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female43 cmmale-------
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female43 cmmale-------
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D step/dir
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female68 cmmale-------
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female68 cmmale-------
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3V3 side of A i2c
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female40 cmmale-------
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female40 cmmale-------
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3V3 side of B i2c
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female33 cmmale-------
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female33 cmmale-------
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3V3 side of C i2c
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female31 cmmale-------
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female31 cmmale-------
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