CEB Press/Manufacturing Instructions/Hopper sheet metal

Warning: The documentation for the CEB Press is undergoing a thorough overhaul. CAD models and written directions are presently obsolete. For more information, see Talk:CEB_Press#Documentation_overhaul_in_progress. When the models, specifications and text on this article have been thoroughly reviewed, updated when necessary, and confirmed as whole and accurate, this warning may be removed.

Tools Required

• Torch
• Welder
• Hole punch with 3/4" dies

Materials Required

• Door Hinges (12)
• 1/2" x 1 1/2" bolts (12)
• 1/2" washers (12)
• 1/2" lockwashers (12)
• 1/2" nuts (12)
• one 5X10 or two 4X8 sheets of 1/8" steel
• 24' of 1/8" thick x 3" or 4" flatbar: Cut into 3' (8 total) pieces.

Diagrams

Shonda_Log#sept_22

Fabrication Steps

Prepare the hinge plates

Hole locations for the hinge plates

1. Punch 3/4" holes in 4 of the hinge plates as shown. The hole locations are not critical.
2. Place three hinges between one of the holey plates, and one without holes to weld.
   • Make sure the plates are a 1/2" apart or more, otherwise the metal won't hinge enough to attach to the hopper.
   • The pins inside the hinge should all be facing the same direction; these will need to be facing down when the hopper is erected so that the pins won't jiggle out over time.
   • On two of the hinge plates, the pins should face right, and the other two, they should face left, for the reasons stated above.
   • Make sure the side of the hinge that sticks out most is on the top; this way it won't interfere with the hopper metal below when installing the hopper.
3. Plug weld thru the holes in the hinges to the plates below, joining all 3 hinges to each plate.

Mounting the hinge plates to the hopper metal

• Torch the hopper shapes. (See diagrams above)

• Punch 3/4" holes in all 28 hinges, in center of rounded part

• Punch holes in hopper sheet metal (all the blue holes, 3/4")

• Bolt all hinges to sheet metal at the red locations marked "1" with 3/4" bolts

• Weld bottom hinges of hopper sheet 1 to hopper mount plate

• Weld top hinges of hopper sheet 1 to grate

• Install hopper supports to hold hopper sheet 1, and bolt with the 2 bolts (1/2")

• Weld hinges to hopper supports for sheet 2

• Weld hinges at base of sheets 2, 3, 4

• Weld hinges between sheets 3&1, 4&1, and between 2&3, and 2&4

• At this point, the entire hopper is erected. It remains to weld the remaining hinges to the grate.

• Upon completing these steps, the 3/4" bolts can be replaced with 1/2" bolts for successive deconstruction and reconstruction of the hopper.