Step 1 - Linear Slide Bearings for CNC Machine

This is the instructional video on how to make a bearing assembly that will slide along a round bar or an angle. The assembly is step 1 of many steps to construct a DIY CNC machine. Enjoy!

Category:

Science & Technology

Tags:

• CNC Machine
• CNC Machines
• CNC Router
• CNC Routers
• Linear Motion
• Bearings
• Aluminum angles
• Ball Bearings

[pardomtlca]

RPM on the drill is way too slow

[anajonesr]

@pardomtlca Thanks. I've gotten way better tools since then. :))  However, the RPM may appear slow due to the video and FPS. The rpm was at the tool's maximum.

[milek021]

Would be a better, and more precisely for some part if round bar is moving between 4 bearing ? For example I make two of those U made during this video and put second on other side of bar, then U get bar surrounded with one bearing at every 90 degree ? ? I hope U understand me ? :) Cheers

[anajonesr]

@milek021 Yes, I did this initially, but the bar needs to be hardened steel to minimize the flex that will occur. I selected aluminum angle since it can be made to hug another supporting material and is much more rigid.

[ItsALLgoingDownHill]

Dude, I fucking love you.

[steveBB30]

@steveBB30 Make the inner width slightly wider than than rail+gib stock. Bolt last plate down on top, and tighten up until rail too tight to rotate, and is so constrained to slide/rotate between plates. Insert gib stock, and remaining holes take set screws the tighten gibbs against side of way , the clearance gap added between the guide rails, allows a little adjustment if you want to rotate the box a little, or loosen/tighten up the action. Don't need rails to be perfectly parallel either.

[steveBB30]

So how do you tighten the slide? What about brinnelling of the ball bearings?

Isn't it easier to form a box slide.

take square stock that will form the way, and some slightly smaller stock that will form guide rails and gibbs. Take 2 of the rail stock and a drill hole at each end. Rotate stock 90 deg, and drill/tap 3 additional holes. Next get 2 plates, and use the end holes in the guide rails to drill holes that will allow a "U" section.to be formed.

[bigdrock44]

Kevin Spacey?

[FJoeForty]

Sie können immer spot hessischen Akzent, egal wie gut die englische Aussprache!

[anajonesr]

@pleabargain Thanks