[dataway]

Pretty sure they said their boring machine had three cutters. This was a very small bore also, little more than 2". "Boring Bar" was probably not the right terminology to use. Of course my boring head on the BP only has one bar/cutter. Knowing this place they probably have some triple cutting dial-a-bore space age bling. But ... they have since ceased to operate in the US and are back in the UK I think.

[hurryinhoosier62]

Originally Posted by dataway

Pretty sure they said their boring machine had three cutters. This was a very small bore also, little more than 2". "Boring Bar" was probably not the right terminology to use. Of course my boring head on the BP only has one bar/cutter. Knowing this place they probably have some triple cutting dial-a-bore space age bling. But ... they have since ceased to operate in the US and are back in the UK I think.

Hmmm...every boring machine I ever used had a single cutter whether it was a Rottler, Berco, Storm-Vulcan or Quik-Way.

[77 TRASHCAN]

Originally Posted by hurryinhoosier62

Hmmm...every boring machine I ever used had a single cutter whether it was a Rottler, Berco, Storm-Vulcan or Quik-Way.

and Van Norman.....

[hurryinhoosier62]

Originally Posted by 77 TRASHCAN

and Van Norman.....

I’ve never used a Van Norman. We had Quik-Ways in tech school (very heavy and extremely slow!). I prefer Rottler equipment, especially the CNC controlled units like the F90s.

[mgarblik]

If your motorcycle bore was only 2" or so, I wonder if they used a boring attachment for a regular vertical mill? Then they could have used a single or multiple cutter head. My Rottler purpose built boring machine uses 3 or 4 locating fingers, depending on the cutter head, but only one actual cutting segment. CBN or carbide. We used to install repair sleeves at room temp with a sledge hammer. About 10 years we started using dry ice on the sleeves and an oven to heat the blocks to about 250 degrees F. The sleeves slide in with almost no force, dry. No failures so far.

[hurryinhoosier62]

Originally Posted by mgarblik

If your motorcycle bore was only 2" or so, I wonder if they used a boring attachment for a regular vertical mill? Then they could have used a single or multiple cutter head. My Rottler purpose built boring machine uses 3 or 4 locating fingers, depending on the cutter head, but only one actual cutting segment. CBN or carbide. We used to install repair sleeves at room temp with a sledge hammer. About 10 years we started using dry ice on the sleeves and an oven to heat the blocks to about 250 degrees F. The sleeves slide in with almost no force, dry. No failures so far.

What model, Mike? As for using dry ice to install sleeves, management always looked at me like I had three heads every time I suggested this...