Fab@Home:Model 1 Bill of Materials

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Contents

Welcome to the Model 1 Bill of Materials Page

Here you can find details of what you need to buy to build a standard Fab@Home Model 1 Fabber. The majority of the parts are "off the shelf" - you can simply order them off the web from the recommended supplier, or find your own locally or online. The acrylic parts ("unit") can by ordered through The NextFab Store of Albuquerque, NM, USA, and a set of acrylic parts is listed as a line item in the Bill of Materials spreadsheet below.

Alternatively, you can cut the acrylic parts yourself if you have access to a laser cutter, waterjet cutter, CNC router or mill, etc.

The current cost of all the materials as ordered from the current list of vendors is about US$2990. If you find a better and/or cheaper alternative source for any of the parts or services, please update this list or the vendor list.

Please Note: You can also order a complete kit of parts from The NextFab Store of Albuquerque, NM, USA for $3025.

Bill of Materials Spreadsheet

Here you can find a spreadsheet listing all of the parts for a Standard Model 1 including the 1-Syringe Tool, and a set of acrylic parts from Koba Industries. Note: Bill of materials rows highlighted in yellow have changed or been added since the last version of the file.


Important Note: Most people will also need to purchase an ARM JTAG adapter for programming the LPC-H2148.

Current Version

  • Link: media:FAHModel1Parts-V9p.zip
  • Version: 9p
  • Date: 10:50, 28 June 2008 (EST)
  • Format: zip archive of Excel Spreadsheet
  • Size: 12KB
  • Note: Arranged by company to allow for easy ordering, new prices in red, this list includes parts for the two-syringe system. For the one-syringe see the Second Legacy Version file.


Second Legacy Version

  • Link: FAHModel1Parts-V9m.zip
  • Version: 9m
  • Date: 14:57, 30 April 2008 (EDT)
  • Format: zip archive of Excel Spreadsheet
  • Size: 14KB
  • Note: New linear bearings, shaft supports, and microcontroller interface

Legacy Version

  • Link: FAHModel1Parts-V9k.zip
  • Version: 9k
  • Date: 18:40, 6 March 2008 (EST)
  • Format: zip archive of Excel Spreadsheet
  • Size: 14KB
  • Note: Update line 46 - correcting error in number of #6-32 x 5/8 screws

Fab@Home Model1 part catalog (with photos)

Current Version

Every photo from the model1 part catalog is now available as a resource. To access a photo use the part number (2-64), and the prefix 'FAHM1P'. Example: FAHM1P08.jpg

There is no photo of part #55 (the acrylic chassis parts). Part #01 is the engine pack, to access individual photos use the prefix 'FAHM1P1' with an index letter (A-F). Example: FAHM1P1B.jpg

Vendors/Part Links

Here is a partial listing of links to some of the preferred vendor pages for parts needed in the Model 1. For a full listing of preferred and alternative vendors for Fab@Home Model 1 kits and parts see:

Full System CAD Files

Here you can download the entire Model 1 CAD assemblies. These are currently organized by assembly step, rather than by functional subassembly. Would someone like to rebuild the complete system assembly (Model 1 Complete.SLDASM) using renamed subassemblies?

Current Version

  • Link: Model 1 Complete.zip
  • Version: 10
  • Date: 14:59, 7 June 2007 (EDT)
  • Format: zip archive of SolidWorks 2006 SP4.1 assemblies and parts files
  • Size: 47MB
  • Note: Assemblies of full Fab@Home Model 1 system, organized by assembly step

Acrylic Parts

Below you can find files in several CAD formats which describe the acrylic parts. Each archive should contain part files and an Excel spreadsheet which describes quantities of each part, recommended material, and recommended orientation for parts during the cutting process - the orientation affect the ease of assembly because many cutting processes leave slightly tapered cuts.

Archives described as "Nominal Dimensions" show the parts with the exact dimensions they should have once you have them in hand. Archives described as "Offset by ... for ..." have had the dimensions altered to compensate for effect of material removed by a cutting process so that the parts will end up with nominal dimensions when cut with the specified process.

Notes to Solidworks users:

  1. SolidWorks Parts files REQUIRE INCH UNITS; parts contain equations which are unit dependent
  2. The primary part configuration (with long descriptive name) represents the part with nominal dimensions.
  3. Configuration named "Cut Compensated" is automatically offset to compensate for tool kerf according to the global variable "Cut Compensation Offset" (see "Equations")
  4. "Cut Compensation Offset" is the one-sided offset of the part boundaries; e.g. should be set equal to 1/2 of the total width of cut associated with your process.
  5. To generate drawings offset for your machining process, activate the "Cut Compensated" configuration, and adjust the "Cut Compensation Offset" variable.
  6. Please cut parts with recommended part view facing (up) toward laser; kerf flare used to assist assembly

Nominal Dimensions

For Solidworks

  • Link: Model1Acrylic-SLDPRT-Nominal.zip
  • Version: 9
  • Date: 18:03, 17 October 2006 (EDT)
  • Format: zip archive of SolidWorks 2005 SLDPRT files
  • Size: 23MB
  • Note: Solidworks part files for the acrylic parts of the Model 1. Parts are in nominal dimension configuration, but also have a derived "Cut Compensated" configuration tied to an equation variable "Cut Compensation Offset" which can be used to automatically offset the parts for manufacturing processes.

Additional File Formats

Offset by 0.0055" for 35W Epilog Helix Laser Engraver

For Solidworks

  • Link: Model1Acrylic-SLDDRW-0055in-Helix35W.zip
  • Version: 9
  • Date: 14:17, 6 April 2007 (EDT)
  • Format: zip archive of SolidWorks 2006 SLDDRW "detached" (unlinked) drawing files
  • Size: 2MB
  • Note: drawing files are layouts of acrylic parts for Model 1 on five 24" x 18" sheets (Sheet1-5) and two 12" x 12" sheets (1 Syringe Tool, Z Table). Parts have been offset 0.0055" for cutting on an Epilog Helix 35W laser engraver; also included are a front and a side layout including etchable logos.

Layout DXF Files

  • Link: Model1Acrylic-DXF-0055in-Helix35W.zip
  • Version: 9
  • Date: 14:17, 6 April 2007 (EDT)
  • Format: zip archive of DXF drawing files
  • Size: 433kB
  • Note: files are layouts of acrylic parts for Model 1 on five 24" x 18" sheets (Sheet1-5) and two 12" x 12" sheets (1 Syringe Tool, Z Table). Parts have been offset 0.0055" for cutting on an Epilog Helix 35W laser engraver; also included are a front and a side layout including etchable logos.

Offset by 0.0000" (nominal size) for Waterjet cutting

Layout DXF file
  • Link: Chassis48by24DXF.zip
  • Version: 9
  • Date: November, 2006
  • Format: zip archive of DXF files
  • Size: 101kB
  • Note: This Zip file contains two DXF layouts in inches for the complete set of acrylic parts for a Model 1, on two 48"x24" acrylic sheets including an extra Z table. Also, there is a scrap left from Sheet2 which is sufficient in size for the syringe acrylic parts (larger than 6"x12")

Offset by 0.0035" for 85W Laser Cutter (NextFab)

For Solidworks

  • Link: Model1Acrylic-SLDPRT-0035in-Koba.zip
  • Version: 9
  • Date: 14:17, 6 April 2007 (EDT)
  • Format: zip archive of SolidWorks 2005 SLDPRT files
  • Size: 23MB
  • Note: Solidworks part files for the acrylic parts of the Model 1. Parts have a nominal dimension configuration, but are saved in a derived "Cut Compensated" configuration tied to an equation variable "Cut Compensation Offset", which has been set to 0.0035" for cutting by a 85W laser cutter - e.g. at Koba Industries.

Offset by 0.013" for V-460 Laser Cutter (Universal Laser Systems Inc.

For Solidworks

  • Link: Model 1 Chassis.zip
  • Version: 9
  • Date: 15:44 28 June 2008 (EST)
  • Format: zip archive of SolidWorks 2005 SLDPRT files
  • Size: 11MB
  • Note:

For Solidworks

Other Parts

This is an early prototype design for a guide to prevent the syringe tool shaft from spinning in case of insufficient friction in the syringe piston. No idea if this works or not.

Navigation

  1. Buy tools required for assembly
  2. Choose your style options
  3. Buy the parts for the Model 1
  4. Build the cables and subassemblies
    1. Cables
    2. Machine Base
    3. XY-Carriage
    4. Z-Carriage
    5. 1-Syringe Tool
  5. Assemble the subassemblies into the complete Model 1 System
    1. Assembling the Chassis
    2. Mounting the 1-Syringe Tool
    3. Preparing and mounting electronics
  6. Program the LPC-H2148 with the Model 1 Firmware
  7. Install the Fab@Home Model 1 Application
  8. Commission the Model 1
  9. Use the Model 1
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