Mill xy table

[Charles scozzari]

Hi, I had my eyes on one of these when Grizzly was selling them maybe ten or so years ago. At that time they wanted $450.00 without the power feed that bumped it up another few hundred installed. I found this on Facebook for $200.00. Went and took a look and took it home. From the color I would say it's a Grizzly table. Nice and tight and the feed works nicely. I wanted it for my R/F radial Arm to use it for easy milling work. I think I am going to make an alum. riser (3 inches) block to get my spindle travel back. Thanks for looking, Charlie.

 

[markba633csi]

Nice score, Charles!

 

[Nutfarmer]

Nice table. Be careful of milling with a drill press. The spindle bearings in a drill press are not designed to take the side loads present in milling. It can be done , but just be aware.

 

[Charles scozzari]

Good morning, Thanks for reply. My intentions are slotting but more so just to be able to zero in when drilling easier. The machine is an Rong Fu 35 sold as a Mill-Drill and seems pretty beefy but as far as I am concerned will always be a glorified drill press that takes the load off my Bridgeport. Again Thanks.

 

[homebrewed]

One issue w/regard to using a DP as a mill is the typical Jacobs style drill chuck. It is held in place by the taper. This works dandy in cases where the machining load is in line with the axis of the taper (when it's being used as a drill). But when using it to hold an end mill, the machining load is sideways, and, due to the rotation, works its way around the circumference of the taper as it turns. This can result in the taper loosening up, to the point that the chuck will literally drop out of the spindle.

Why do I know this? It happened to me. Fortunately no harm done to the machine or to my person, but my work was ruined. So be careful out there.

In my case I just got lazy. I installed an EM in my mill's drill chuck. But it was the same situation, the chuck uses a Jacobs-to-R8 adapter.

 

[Charles scozzari]

One issue w/regard to using a DP as a mill is the typical Jacobs style drill chuck. It is held in place by the taper. This works dandy in cases where the machining load is in line with the axis of the taper (when it's being used as a drill). But when using it to hold an end mill, the machining load is sideways, and, due to the rotation, works its way around the circumference of the taper as it turns. This can result in the taper loosening up, to the point that the chuck will literally drop out of the spindle.

Why do I know this? It happened to me. Fortunately no harm done to the machine or to my person, but my work was ruined. So be careful out there.

In my case I just got lazy. I installed an EM in my mill's drill chuck. But it was the same situation, the chuck uses a Jacobs-to-R8 adapter.

Thanks for your reply. I would just like to show you what I am going to do to make us of my radial as a back-up mill. The pictures are of a set of collets I bought many years ago to use in the spindle of the mill/drill that has a MT3 taper. I have to make a draw bar of 3/8"diameter to pass through the spindle and thread into the collet holder that is 3/8"x16 TPI. That may keep the tool holder from rotating in the spindle I will follow up on the draw-bar and see how it will works. Thanks again for your concern.