Open Source Spindle Cartridge

FreeCAD = File:Spindlecartridge.fcmacro

These are thousands off the shelf, so need to go open source.

• 4.5" 8450 TIMKEN BEARING CONE 4.5in ID [1]. $38 [2]
• Can get 4" automotive bearings for $80 [3]
• and 3.75" bearings for $20 [4]

BOM

• Use 4.5" schedule 40 pipe - [5]
• Use 4.5" OD schedule 160 pipe - [6]
• 4.5"x3.25" DOM [7] $10/inch

Spindle with Concrete Block

• 3" through feed for indexing lathe mill.
• Here is the macro - File:Spindleassy.fcmacro and the generating chat [8]. Bearing tapers and cups are shown (bearing in 2 parts). Some hallucination on drive, but in general concept is coming together.
• File:Spindlewithconcreteblock.fcstd