X2 'Mini Machining Center' 4th Axis Grinding on hardened shafting.

Yet another job for my hard working 4th axis. Ths video shows end prep on a pair of Hiwin precision ground leadscrews for my new table.

Note that the 4th axis prototype is now complete with belt covers, the home sensor has been relocated under the belt cover and there are now pin blocks for locking the spindle for closing/opening collets and other uses.

The new table is actually on the job in this video, but it has temporary Thompson rolled ball screws on it. The precision lead screws being end prepped in this video have no backlash and together with the ball slides on the table, should give me the accuracy I need for an upcoming project. I will do a video demonstrating the table next.

The 4th axis is a product available for purchase and I am building 4 of these tables for a client once I am finished testing it. They will be installed on 4 new X3 mills for a special project. It is not decided yet if the table will become a product available for purchase.

Category:

Science & Technology

Tags:

• X2
• Mini Machining Center
• MACH 3
• 4th axis
• indexer
• rotary table
• grinding
• CNC
• CNC conversion
• benchtop mill
• mini mill
• CNCdrive

[telesniper2]

hm you could do tungsten carbide rifling buttons that way......

[Simpsons36]

What is a rifling button?

[dest101101]

I love the video!

As a professional grinder hand, I suggest that you have the work turning into the direction of the wheels travel. IE: rotate the wheel and the work into each other.

Additionally, thats a pretty aggressive cut for running without coolant.

All that said, top notch results, and top notch design!

Bravo!

[Simpsons36]

This little mill is not rigid enough for conventional milling or grinding direction. This mill is now sold and gone and my new mill is larger, so it may be able to perform as you suggest.

For this particular grinding job, finish is unimportant and the cup is very coarse so the .001 DOC barely slowed the spindle.

[togaida]

How's about a shot of the whole machine working on a project, with 4th axis running, please?

[Simpsons36]

Even with HD, it is difficult to see the action with the camera zoomed back. However, I will keep your request in mind when I make vids of my new mill . . . coming soon!

[togaida]

Cool.

[telesniper2]

its a hard tungsten carbide "negative" of a rifling profile so to speak, that is a few thousands of an inch over bore of the unrifled barrel blank----you force it through the barrel while twisting the rod and it leaves an impression of the rifling. This is a more efficient alternative to using cut rifiling, and most air rifles (what I'm interest in) use this "button rifiling". Dennis Quackenbush uses it.

[russtuff]

what a great idea. as always, great video.

[togaida]

nice.