How Boring is Boring?

Here, I'm creating a hole in a billet that will eventually become a pillow block. The billet is first aligned, taking great care over the face alignment (the block is over-sized at this stage, to allow for hole mis-alignment correction later).

The machine is a Sieg C4 lathe, with a custom-ground boring tool.

I'm taking only very light cuts here... the machine can go much faster on the job, but I'm babying it along until I get more familiar with it.

Category:

Howto & Style

Tags:

• lathe
• boring
• aluminium
• sieg
• c4

[MightySerbianFighter]

i actually enjoy in using lathe machine very much!

[SiGraybeard]

Certainly not boring - more entertaining than most TV!

[MrSwanley]

@msgmonly There's a couple of models of the C4. The C4S that I have has a 1kW speed controlled motor that will cut just about anything without bogging down. Even so, it is a hobby machine paid for out of my own pocket, so there's no way I would risk damaging it on a heavy cut just so I could look good to the "my lathe's bigger than yours" wankers.

[grg121344]

Is it safe to extend chuck jaws that much? On "long" side i see more than a half jaw out of chuck body - scarry.

[SupermaxCNC]

@JaakkoF If calipers did not have a flat on the ID jaws they would be razor sharp which would be a poor choice in design do to issues handling and durability. Calipers work OK at larger diameter but when you get this small it will measure off by as much as a couple thousandths which if you are making something that needs to be within high tolerances, like a bearing fit, will cause you to go oversize.

FWIW, all my calipers are real. Mitutoyo and Swiss made SPI.

[msgmonly]

@erinbear123 .200 cut would stop that lil hobby lathe dead!

[erinbear123]

Wow, that took way to long to indicate in!! If i went that slow, I'd get fired for sure!! And why does it look like your depth of cut is so light, It's Aluminum! you can take at least .200 per side and feed in harder... leave .030 per side for your finish cut and feed slow on that... I set up 144" VTL's wit a 4 jaw chuck and you managed to take longer to indicate that part in than I do.

[bddc201]

Thanks for speeding up the video. I do very similar setups boring clamps for tubing benders and sometimes it takes over an hour just to get them aligned properly.

[BornToKillization]

thump up, if u searched  boring, and clicked on the first video :)

[richeleat]

No good