Tramming bar and standard indicator block.
The standard indicator block is use to get a glass sufrace flat, then the tramming bar is used to when adjusting the router.
See this video for tramming instructions.
Link to the Harbor Freight Indicator
https://www.harborfreight.com/1-in-travel-machinists-dial-indicator-63521.html
Category: 3D Printer AccessoriesThe author marked this model as their own original creation. Imported from Thingiverse.