Friday, November 4, 2011

John Deere 45mm Joint Pin Extractor

My first project cutting steel!  The tool I'm making allows us to easily pull out the 45mm joint pins on our JD 450J bulldozer. Over time the pins will no longer accept fresh grease and need to be removed for cleaning and/or replacement. 

First step is to drill and tap the three holes.


This project marks the first time I assigned a "tool offset" for each tool, which greatly improved the speed and accuracy of tool setup and tool changes. 


The material roughing was done with a 5/8" course tooth bit, which works amazingly well!


A finish pass of 0.010" with a 1/2" end mill




Finally a 45 deg. chamfer


Logo engraving done on the CNC router.





Production is going very well!






The final test passes with flying colors!