Design Guide for Worktank
EDM Project
Sean Hesse
Manufacturing
Plans for Each Part
Tank
The tank is to be welded out of 1/8” steel sheet metal. The hole in
the side plate is to drilled on a universal milling machine.
Angle Iron w/ Hole
The hole located on the center is to be drilled on a universal milling
machine. The angle iron is then to be welded onto the side of the work
tank in a way that locates the two holes over the top of one another.
Angle Iron
The angle iron is then to be welded onto the side of the work tank.
Drainage Coupling
The standard drainage coupling is to be welded to the bottom of the
work tank.
Presumed Process Capabilities
Process
Milling
Min Tolerances
 +/- .002”
Drilling
 +/- .002” on
size, shape,
alignment
Welding
 1/32” on shape
and location
Geometric Restrictions

No sharp inside
corners

No small detail in
narrow deep locations

Holes only

No sharp inside
corners
No small detail in
narrow deep location

Minimum Assembly Clearances
Parts
Angle Iron w/hole and
Tank vs. Drainage Hose
Min Clearances
.010”