Mill Table Stops Nov 20, 2013 By Kaje at https://sites.google.com/site/lagadoacademy/home This document describes milling table X-axis stops for the LittleMachineShop Model 3900 HiTorque Mini Mill. This model of mill has a t-slot machined into the front of the table, as well as pre-drilled mounting holes in the base, so construction of table stops is relatively easy. For more information and a build log, go here: https://sites.google.com/site/lagadoacademy/machining---lathes-mills-etc/tools---mill-table-stops
This is the right front of the milling table, showing the t-slot machined into the front of the table. The dimensions for the access hole are shown below.
0.656“
Below the center of the milling table are two pre-drilled holes, spaced 25mm apart, and threaded for M4-0.7. The center-line marker plate above the holes will be removed.
0.466”
0.236" (6mm)
0.187"
The important measurements relevant to the size of the t-slot are shown to the left. These measurements should be considered approximate, but are sufficiently accurate for the purpose at hand.
Mill Table Stops Nov 20, 2013 By Kaje at https://sites.google.com/site/lagadoacademy/home
Center Stop The center stop is milled from 1.25” x 0.5” rectangular bar. (Note: This results in the counterbores for the screw holes overlapping the edges of the finished piece, so 1.5” W may have been a better choice – I used what I had on hand.) The curve on the sides is simple the result of using a 0.75” diameter end mill.
Mill 0.130”
Drill and counterbore for M4-0.7
1.75"
SLOT
0.75” 0.5"
0.27"
0.133"
25 mm (0.984") 1.25"
The picture to the right shows the completed center stop in place, together with one of the moveable stops.
