Subject may well be boring but there are few issues related to that.

1. I have found procedure of trueing grinding wheel to be a messy one. To begin with, every aluminum oxide/silicon carbide grinding wheel, even a new one, needs trueing after installation and occassionally during use, when got dull or groved. Procedure, regardless how done, produces considerable quantities of fine dust which fly around shop and likes to settle on slides of other machines. These need covering to prevent later damage and floor of shop needs good hoovering later. Looks tedious and probably some dust will still find its way to machines and contribute to wear.

What remedies could be offered other than an obvious one to move all grinding equipment to another room?

2. How to proceed with "trueing" correctly? I have found that even new wheels are showing 1mm of "throw" and sometimes even worse than that. Despite all efforts I am finding it difficult to reduce said "throw" to less than 0.25mm or so, even with use of some simple guides etc. It seems that grinder vibrations and resonances with table are responsible.

I have tried both diamond and abrasive block meant for the business.

Is it accptable to settle with such small throw (0.25mm on 200mm wheel), or I should struggle to get better than that? How to improve situation?

Martin

Many thanks for your ideas and advice.

@jon – At least it is good to know that small throw is acceptable. In practice I have also noticed that dressed wheel cuts better and not much deleterious effects related to any remaining eccentricity are noticed.

Yes, it is dressing, not actual grinding, what produces most of dust.

@Peter Krogh – My grinding rest would obstruct area where hosepipe to hoover need to be fitted. On the other hand modification of wheel shield might allow for this idea to be tried – will have to have a look.

@David George – I am actually using something comparable but your approach seems more straightforward. Will try. Easy enough.

@Rik Shaw – I am not an owner of surface grinder or cylindrical grinder. Regarding cooling, I wonder if some sort of arrangement can be made for bottom of grinding wheel of my bench grinder to be immersed in bath with water. Is it in your opinion a legitimate idea or something daft?

Yes, I know, cooling *is* important. and now my machine (means ML 7 lathe which also serves as a makeshift miller with aid of vertical slide) is devoid of this luxury very much like offhand grinder. However mid next year I will get a proper miller (total mass of this machine is approx. 1 ton) and she will have cooling system installed.

@Hopper – That is very much what I did. My grinder is also at the garage door, about 15 feet from lathe. Still this dust is annoying. Taking it outside for dressing would be tedious. It is bolted, it would need bolting outside etc.

@John Reese – Didn't try this one. May try in the future. Sad truth is that Chinese stuff is competitive in price but also increasingly in quality. Sometime ago I have kissed goodbye to European carbide inserts. Chinese are coming at 10% of European price and recent batch ex Mitsubishi (still sent from China) is doing miracles at price of 1 USD each. European versions are simply a ripoff.

Martin.