November 23, 2012 Collaborative Production Run

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Revision as of 21:47, 22 November 2012 by Marcin (talk | contribs) (→‎Master Index)
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see CEB Press. See License. Follows rules of Oshwalogo.png.

Preparation

Change Notes

Design Modifications

  • Based on modular rear hopper supports, add quick attach to front hopper supports as well
    • Shorten horizontal frame u-channels from 22" by 1.5" - to allow for the front hopper support to be mounted on the primary arms
  • Simplify shaker shield to a single flat plate
  • Add a more robust, modular holding mechanism for sensors
  • Add safety disconnect for machine turn-off
  • Can we get a better packing fraction on Part 24 of CEB IV Master Index?
  • Shorten rail by 2" at the front of the machine, leave hanging 8" beyond drawer chamber at the rear.
    • Use 1"x3" bar instead of 1/2"x3 (or 1/2"x5/8") and 1/2"x2"
  • Lengthen hinges to 34" for the hopper and 24" for the grate supports
  • Reduce bottom pin bushings from 1.8" to 1.5"
  • Make bushing for bottom cylinder mount to frame the same as the end tube - 1.5"x2.5" DOM tubing - to reduce material list
  • Remove bolt holes for back of hopper supports (shaker side) and clamp instead on top with 1/2"x6" flat.

Fabrication Drawing Corrections

  • Fab Drawing (Part) #151: Correct spelling of Brake
  • Part #153 & #154: change wall thickness from 1/2" to 1/4"
  • Part #90: update to heavier hinge. Punching holes is preferred to drilling. Update length to not drill.

Fabrication Diagrams

Master Index

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Fabrication Abstract

Build all parts from raw material. Team 1: hopper sheet metal cutting with 2 plasma cutters, hinge cutting to size with ironworker, punching of holes with hinge put in place on front and back hopper sheets. Team 2: does all cover plate sheet metal. Team 3: Ironworker team does pieces and holepunches them. grate fab after 1/4x2s and angle pieces are sheared on ironworker. Team 4: Cold cut team. Team 5: Bandsaw Team for 2.5"x3/16" tubing. Cuts metal for drawer at same time.

Wave 2 will be hole punch team.

Main Cylinder Fabrication Diagram

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Frame

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Drawer + Drawer Rollers

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Hopper + Grate

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Hopper Shaker

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Hydraulics

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Arms + Legs

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