CBN wheels.

[Gary]

I have a Creusen slow speed grinder and I am exploring the possibility of a CBN wheel for tool shaping.

Wheels from UK sellers seem to come in around the £180 mark.

Has anyone tried and would recommend a direct from china wheel?

What grit would I be looking at for tool reshaping?

Or completely on the other end of the scale. How quick is a Tormek course diamond stone for reshaping?

Thanks

Gary

 

[Sideways]

80 grit cbn isn't as popular as the finer (say 120 grit) wheels but it is nice and aggressive for reshaping tools and doesn't take that much finishing afterwards.

 

[Phil Pascoe]

https://www.axminstertools.com/axminster-professional-radius-edge-cbn-wheel-200-x-32mm-80g-108038

 

[Gary]

https://www.axminstertools.com/axminster-professional-radius-edge-cbn-wheel-200-x-32mm-80g-108038

Have you used them or is that just a random link to a stone that won’t fit?

 

[Chief Sawdust Maker]

I use one of these in 120G really impressed with it. I keep my clean with a cleaning stone

https://hopewoodturning.co.uk/sharpening-jigs/oneway-sharpening-jig/483/cbn-wheel?c=72

 

[Phil Pascoe]

Have you used them or is that just a random link to a stone that won’t fit?

It's a decent offer, I don't know whether your grinder is 6" or 8". I'm sorry, I won't do it again.

 

[RobNichols]

I recently bought a grinder with CBN WHEEL from Hope Woodturning. Excellent price and service.

Also I was looking to get an 80 grit but following a conversation with Simon Hope at Hope Woodturning, I decided to follow his advice and get a 180 grit CBN wheel. I've been very pleased with this choice.

The wheel was packaged with a slow grinder, and using that I have had no sign of excess heat building up. Excess heat seems to be the main reason people recommend the coarser grit (they cut quicker and therefore lead to less heat build up). However, my experience of using a CBN wheel is that the large mass of metal that comprises the main part of the CBN wheel is a very effective heat sink, and they don't heat the irons the way traditional grit stones do. Perhaps if you don't have a slow grinder this is more of a problem, but it is worth noting all the same.

 

[Padster]

+1 for. Hope Woodturning - really helpful, and you can get components or a complete kit…. I’m not mentioning the ’S’ word but mine has been revolutionised since recently switching.

Padster

 

[Gary]

The difficulty is I need a 150mm wheel with a 15mm bore. £208 from Axminster.

 

[BentonTool]

I recently bought a grinder with CBN WHEEL from Hope Woodturning. Excellent price and service.

Also I was looking to get an 80 grit but following a conversation with Simon Hope at Hope Woodturning, I decided to follow his advice and get a 180 grit CBN wheel. I've been very pleased with this choice.

The wheel was packaged with a slow grinder, and using that I have had no sign of excess heat building up. Excess heat seems to be the main reason people recommend the coarser grit (they cut quicker and therefore lead to less heat build up). However, my experience of using a CBN wheel is that the large mass of metal that comprises the main part of the CBN wheel is a very effective heat sink, and they don't heat the irons the way traditional grit stones do. Perhaps if you don't have a slow grinder this is more of a problem, but it is worth noting all the same.

I have a 6 inch full-speed (3450 RPM) grinder with two CBN Wheels (80 and 320 grit). If I had it to do over, I might buy a finer wheel for the opposite side, as the 320 Grit is still quite coarse. The 80 grit wheel removes metal amazingly quickly and cooly.
I have mated it to a OneWay / Wolverine setup with a Tormek adapter. They work exceptionally well. CBN has totally transformed my grinding. They are a joy to use. The tools remain remain relatively cool despite the "high" speed.
I have used them on HSS and high-carbon steels, on UK and USA-made chisels and plane blades with absolutely no metal build-up on the wheels.
I purchased mine from Amazon. The links are below, but the 80 grit is apparently out of stock at present.
https://www.amazon.com/gp/product/B0B4W52BVS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B08S7DLSKD/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1