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Lead Contributors:

Stephen Whiting

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Source File:

OSE CEB Press Development Board

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Graphic Design:

Jean-Baptiste Vervaeck

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Version:

Date:

CEB 6 Build Instructions: Legs and Feet

Open Source Ecology Developer’s Manual

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Build Time and Overview

Final Products: Legs and Feet

-This module should be fairly straight forward and short.

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Welding of the nuts: 20 minutes

Weld the feet to the base: 30 minutes

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Total Build Time: ~50 minutes

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Difficulty Rating : 3/10

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Design Rationale:

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Many bolts are used as clamps to hold the locations of multiple parts. Legs can be individually height adjusted and are designed to fit in the back of a truck. Bolts are used so that many parts can be easily adjusted.

Legs + Feet [x4]

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CEB Press Legs, Feet, Hopper Support Module

Legs + Feet

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Safety Equipment

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Safety is important during assembly.

Be sure to wear:

Be sure to know the location of your emergency equipment:

Hard hat

Ear protection

Protective gloves

Steel toed boots

Safety glasses

Welding shield

Emergency shower

First aid kit

Fire extinguisher

Eyewash station

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Materials and Equipment

Stock Materials:

2 ½”x 3/16” steel tubing 1x 3’ long

2”x1/4” in. steel tubing [x3] 10’ long

¾” bolts (2 inches long) [x4]

¾” bolts (4 inches long) [x2]

¼” steel plate (6”x6”) [x4]

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Equipment

measuring tape

abrasive cutoff saw

grinder

annular cutter

level welding table

welder

marker

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Personal Protection Equipment:

eye protection

full-body cover clothing

hard hat

gloves

steel toes boots

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Test Dummy Icon by Luis Prado; Gloves Icon by Veselin Andreev; Boots Icon by Nick Green

All Icons from The Noun Project

Test Dummy Icon by Luis Prado; Gloves Icon by Veselin Andreev; Boots Icon by Nick Green

All Icons from The Noun Project

Test Dummy Icon by Luis Prado; Gloves Icon by Veselin Andreev; Boots Icon by Nick Green

All Icons from The Noun Project

All Icons from The Noun Project

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Part Labels: Legs and Feet

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Length

Stock

Part Name

Quantity

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6”x6”

¼” Steel Plate

B1, B2, B3, B4

4

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6”

2 ½”x 3/16” square tubing

F1, F2, F3, F4

4

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36”

2”x ¼” square tubing

L1, L2, L3, L4

4

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¾ in. nut

6

1.5”

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¾ in diameter bolt

4

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4”

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½ in. diameter bolt

2

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Welding Procedure

  • Make sure the table is clear of bumps and scrap metal
    • Grind spatter and bumps from your weld table; the table down for easier assembly
  • Welding heats the metal to high temperatures so the metal will warp if not careful
    • To minimize warping, tack weld all parts first in different places first
    • Then spread the weld apart into many different places, not closing any gaps until the very end
    • Order the welding so each wield are far apart from the previous weld, welding about 2%, then 5%... 10%... 20%... 50%... 100% at each spot.
  • Millermatic 200 welders - use High Voltage, 2 power setting, 60 wire speed.
  • See procedure for replacing liner

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Procedure: Legs

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2. Place a 2” long ¾” bolt through the nut before you begin welding. This ensures that the bolts will pe properly aligned before you begin welding. Weld ¾” nut over the hole in 2 ½” square tubing. Repeat for each foot.

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Step 2:

note bolt is not welded, just nut

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Procedure: Legs Continued

Weld

Completed Legs x4

4x 36”

Foot Base [x4] (6”x6”) ¼ inch steel

4x 36”

3. Weld each tube to the center of the base plate. Repeat for each foot. Not a critical weld, doesn’t have to be precise

4. Each leg slides into the completed foot.

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Legs/Feet Module

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