Messages

I'm wondering if anyone has had experience with and a source for resin bonded diamond or CBN wheels for T8?  I've used them with great success with other sharpening systems and would like to try them with my T8.

Thanks for the advice here.  What I'm doing now is, I filter and reuse the water if it's reasonably clean, as many times as it stays that way.  On heavy grinding of course, I only recycle the water once.  So far, it's been working fine with my CBN wheels, so I'll keep up that practice.

The last lot was getting pretty manky and only had about 1/4 left so I threw it out and made up a fresh batch. Not sure how long I had it but it was a LOT of sharpening.

Thanks for the reply. I actually considered adding a drop of bleach to my mixture to keep it from going bad, but I reconsidered and decided to post here first.  There are probably other things that could be added to do the same thing, however I'm wondering if it is even necessary.  I do know that the solution does smell a bit foul, but I don't know if that's the chemicals and metals or biology that I'm smelling.

Derek,

I'm not a chemist, but bleach is an oxidizer so I believe it might accelerate rusting.  Someone who is a chemist or metallurgist may correct me though.

Rich

Yikes!  I wouldn't want that. 

The last lot was getting pretty manky and only had about 1/4 left so I threw it out and made up a fresh batch. Not sure how long I had it but it was a LOT of sharpening.

Thanks for the reply. I actually considered adding a drop of bleach to my mixture to keep it from going bad, but I reconsidered and decided to post here first.  There are probably other things that could be added to do the same thing, however I'm wondering if it is even necessary.  I do know that the solution does smell a bit foul, but I don't know if that's the chemicals and metals or biology that I'm smelling.

Ok...that sounds weird to me. I can't see where there would be any flexibility. Can you post a pic?

I use coffee filters to "clean" the water after use and keep it in a jar for next day. Do you ever add anything to keep the water from fouling?  By the way, I do use ACC-150.

So with the help of Ken, I found this shaft at Advanced Machinery that should work.  The only issue may be that it is flat on two sides of the shaft.  I've mounted the felt wheel on the shaft and it seems to fit well, however I wonder if the flat sides will cause problems?

Your post is slightly confusing. When you place your 45mm felt wheel on the shaft, are the threads too far away for the nut to screw down or is your shaft too short for your felt wheel?

If the shaft is too long, fender washers with 12 mm bore hole can fill in the space at minimal cost. These often come in three packs.

Ken

Actually just the opposite. Not enough threads are exposed to get a bite because the shaft length is the same length as the wheel is wide.

So I purchased a 45mm wide felt wheel, however it's too long for a 45mm adapter on the leather wheel side of my T8.  Does anyone have a longer adapter or a fix for this?

I remeasured the distance from top of USB to top of stone, even using the rubber band trick and got the same discrepancy between using the AngleMaster vs using Calcapp measurements. Forgive the angle of the picture, as I was trying to show all the settings on the AngleMaster as well as contact to the stone and blade.

The blade is tapered from spine to edge... the AngleMaster doesn't account for that.

Got it.  That makes sense.  From now on, when doing knives, I'll be using CalCapp, since all my knives have some king of primary bevel.  Thanks.

I remeasured the distance from top of USB to top of stone, even using the rubber band trick and got the same discrepancy between using the AngleMaster vs using Calcapp measurements. Forgive the angle of the picture, as I was trying to show all the settings on the AngleMaster as well as contact to the stone and blade.

 

Am I doing something wrong here?  No matter how many times I enter the numbers, there's a marked difference using CalCapp vs using the WM. The WM shows the projection needs to be lengthened.  My wheel diameter is 250mm, Jig Diameter is 12mm, Projection is 139mm and Angle is 15dps.  I got 78.9mm from top of USB to Top of Stone.

I wouldn't imagine that water *inside* the wheel would do any damage, since it's made of aluminum.

I wondered about that, so I put a magnet to the wheel and it stuck.

When I put together my paper wheel setup, I couldn't use the exact distance of USB base to arbor center that is on the T8, because the grinder base was in the way.  Does that preclude my ability to use CalCapp to figure out top of USB to wheel surface calculation?

Thank you. Just what I needed to know. I thought I really blew it.

No... if you measure directly to the wheel to set the USB height, the horizontal (and vertical) distance doesn't factor in.

When I put together my paper wheel setup, I couldn't use the exact distance of USB base to arbor center that is on the T8, because the grinder base was in the way.  Does that preclude my ability to use CalCapp to figure out top of USB to wheel surface calculation?