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The Tormek T8 had been introduced 10 years ago in 2016.

Yes, I also thoought the T8 was not yet available 15 years ago. Perhaps it wasn't as old as John thought

Hello all,
A little update on this subject...
After some of your comments, I was a little worried that my choice of leaving the wheel on all the time wasn't maybe so wise.
So, I just removed the wheel, in case of any problems and all is fine.
No rust or any sign of rusty bits.
I did use some thickish lithium grease the last time and it seems to have protected everything OK.
The wheel and the ezylock came off easily.
I just regreased the shaft and put it all back on.

Until next time....
Danny

thanks for all your replies.

Food for thought...
Danny

Ok, thanks for the answers.
On my T8, I always empty the water after a session but never remove the stone.
The shaft is Stainless and I (try to!) lubricate it every year. Not had any issue so far.
Yes, the stone stays wet/damp for days.
I suppose it also depends on the humidity levels of the workshop and local environment as well.
Danny

... Oh, and by the way, even though the SG is the only grindstone I ever use, I remove it after every session. Those of us who do this are also susceptible to this issue with the spacer coming off ...

Herman,
Sorry to hijack this thread but this is what I was thinking of in my own thread from yesterday. Would you care to let me know why you remove the wheel after every session?
I only use the SG stone to but I never remove it. I would like to know why others do so.
Danny

Hello all,
Just a little question.
I have seen this point being made quite a few times in various threads and I am  wondering what exactly is the reasoning behind this.

Personally, I never remove the grinding wheel. I hone knives on a separate machine equipped with a Tormek USB so I can get a precise angle. Much easier with larger knives this way.
I hone chisels and plane blades on the honing wheel of the Tormek as there is no problem with the gringing wheel getting in the way.

I also prefer to leave the wheel on as then it is always in the same trued position.

I know a lot of you use various wheels but I only use the SG-250.

Is there something I am missing?
Are there any negative consequences to leaving the wheel on on the T8 that I have not thought about?

I haven't had any problem in about 4 years since I have had the machine and I use it two or three times a month for all our knives and more occasionally to sharpen my woodworking tools.

Any thoughts?

Danny

thanks for your reply Danny
i was referring to the rough cut as being as soon as the tool to true the stone had been used as i noticed it was cutting a lot more than when the 220 grit was in operation ,
great info re grading the stone ,as to using diamond cards to dress the wheel i already have trend diamond cards in 300,600 and 1000, should i be using them ?
looking forward to this sharpening journey

Steve

OK, I see what you mean.

I also use 80 diamond plate to roughen the stone and 400 to smooth it. Seems to work pretty well
Danny

Hello,
Not sure what you mean by the 'rough stone setting'. The rough stone setting is the 220 grade. In general, you need to keep the chisel in the jig for both initial rough grind (220 grade) and then the same exact angle once you make the wheel smoother (1000 grade)
This allows for a finer finish in exactly the same angle. You should see no difference in the grind except finer lines.
All it takes is 10 - 20 seconds using the stone grader to make the wheel less abrasive. (Or more abrasive the other way round)

Once the grind is finished, you can remove the chisel from the jig and do the honing on the honing wheel, normally freehand.

In reality the grading of the stone is not so precise. It is at its most abrasive just after truing it with the diamond truing tool. After that it generally settles down to around 600.
You can make it more rough or smooth with the grading tool but it is not really 220 or 1000!
The basic idea is to use the rough cut for more metal removal when you need to and then finish it with the finer grind.
I, and others, tend to use a diamond plate of different grades to roughen or to smooth the stone.

See this Tormek video for a good example of chisel sharpening

https://www.youtube.com/watch?v=Yd6nnexsPjY

When I sharpen my knives, I like to hone at a precise angle using a different honing wheel setup.
That's a different story...

Danny

P.S. There are many useful videos on the Tormek channel for all sorts of sharpening.
P.P.S. The chisels will be less sharp pretty quickly especially if used on harder woods or very resinous softwoods.
When it loses its edge, it is possible to just touch up the cutting edge on a stone afterwards. The hollow grind of the Tormek helps this a lot.
P.P.P.S. Welcome to the sharpening rabbit hole 

Merci pour vos conseils.
Effectivement j avais réalisé un premier affutage de plusieurs lames en Vg10 suivies de lames en acier plus tendres qui se sont retrouvées avec les rayures provoquees par les residus d affutage.j ai pu les rattraper par polissage donc pas de soucis .
Cdlt

Bonjour,
Est-ce possible de faire quelques photos pour nous montrer ce que tu constates, stp?
Cela nous aide à t'aider, peut-être!

Danny

This is definitely not normal. My T8 is very happy to run and run 
A bit of patience at this holiday time is a good idea, it is not a massive company so there are probably a few people absent at the moment which will slow down their response but I am sure Tormek will try to get this sorted for you as soon as they are able to.

Danny

I haven't got any expereience with this on my T8 but limescale is easily removed by soaking in Acid.
Not sure if any of the parts you want to treat are OK to soak or not.
The time needed depends on the strength of the acid you may use and the amount of limescale.
Lemon Juice and vinegar all the way up to more potent treatments are available
https://www.dynapipe.co.uk/how-to-remove-limescale.htm

The only people that have discussed sharpening angles with me sharpen their own knives.

 

My choice was a very cheap (6 euros!) and sturdy gardening tray which has been excellent 
https://forum.tormek.com/index.php/topic,5458.msg39853.html#msg39853

ALIEXPRESS
I just ordered this one here