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  1. #1
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    Default Wet grinder help in Ballarat (and surrounds) this week (13-16 Aug)

    I've borrowed a mate's Scheppach Tiger 2000 wet grinder to help with completely redoing all the bevels on my carpentry chisels.

    I'm only doing a rough job to get the primary bevels ready for working on a flat stone, and while the grinding wheel was a bit scalloped and gunked up in the center when I got it, it's doing the job but I'd like to be able to give the machine back in better condition as I've added to the wear.

    I'm hoping that a generous local might allow to me visit and use their truing tool to recondition the wheel before I return it on the weekend. I'm hoping that Tormek gear fits the Scheppach, or we could swap the wheel over to another machine to fix it. I've read somewhere that it's possible to do on a metal lathe with a single point diamond tipped bit as well, but I'm not entirely sure about that...and it creates quite a mess for a lathe.

    And of course I'd be more than happy to throw, say, $20 bucks their way to pay for their time and wear on their tool too.

    I have been able to roughly work the wheel with a grinder resurfacing stick (*gasp*) but it's not truly flat or square (not that it particularly was in the first place). The owner probably wouldn't notice, but I do and would like to give it back to him reconditioned as a way of thanks.

    Cheers.
    Every time you make a typo, the errorists win.

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  3. #2
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    Morning mate!
    Sorry I can't be any help with the grinder as it's not a tool I use but you may have more luck posting is some of the other woodworking threads on this site. Not many people visit the sharpening forum and you will have better luck finding a local with a bigger audience.

    Good on you for returning it in better condition! Borrowed tools usually get returned damaged!
    If he is a carver he might like the dish in the stone, but it sound like you already checked that out.
    Have you used the grinder yet? Are you a fan?

  4. #3
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    Cheers Ben. I didn't want to hassle outside of the sharpening section, but you're probably right. I'll chuck something in the general area.

    It's not a bad little doo-dad. It's taking a while to do these chisels as I've fully bluntened them and have even taken the bevels right off a couple. My bench grinder has been able to take most of the material off but it spins too fast and once I had the bevel on it would immediately blue the steel unless I left the tip with a 1-2mm thick blunt end...which is where this wet grinder had to come in.

    For a cheap machine it's doing a good job and with the leather wheel, a quick and rough user (like a carpenter) might like it. I don't want a hollow grind on my chisels so I'll finish the chisels off by hand on a stone but I certainly do wish I had one to take away the chore of redoing primary bevels. If I was a turner I don't think I could live without something like this.
    Every time you make a typo, the errorists win.

  5. #4
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    It's a can of worms, which leads to a comedy of errors, sorry to say.

    We trued up 2 Tormek wheels a couple of days ago.

    You are right, a metal lathe does a good job with the single point diamond, HOWEVER problems arises with the nylon bush inside the wheel
    we found both were out of shape hence when put it back in the wheel runs eccentric.

    If you true the wheel with the bush in place the it's not a true round.

    In our particular situation we had to turn and insert a new brass bush then true the wheel. Only to find that the nylon bushes that housed the shaft were also egg shaped and distorted the running of the wheel. So we made new ones for there as well.

    After all that the drive shaft itself looking a bit how-ya-goin' so we made a new shaft out of stainless steel.

    Not a bad days work when all we wanted to do was true up a wheel. The replacement cost of the wheel was a lot cheaper than trying to fix the old one.


    Cheers

    Steve

  6. #5
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    Ahahaha. Ahh ya poor buggers. It's always the way though eh?

    Funnily (or stupidly) enough, last night I was letting it run with a surfacing stick clamped to the bar to see if it would help in leveling out the grinding wheel. It was merrily chugging along for quite a while and slowly, very slowly, doing the job. That is until I went outside for smoke only to return and see it sitting stationary with a hot rubber smell filling the room. It had jammed up on the ovoid wheel and the motor was wearing away a section of the rubber tyre on the friction wheel.

    So instead of saving $50 from buying the Scheppach tool to do the job properly (which isn't as good as Tormek's $110 jobbie), I'll end up spending $50 on a replacement friction wheel.

    While it runs...just...I just hope it's not going to be a problem in getting the grinding wheel trued before I get the replacement.

    That'll teach me to be a tight wad...maybe...
    Every time you make a typo, the errorists win.

  7. #6
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    All these wheels need truing up straight out of the box and every so often depending on use. Thus a truing gadget for these wheels is essential.

    I have a Seppach wet wheel and I use the Tormek truing gadget, which is fantastic once you modify the bar by cutting a thread on the bar for an adjusting nut. This allows you the micro adjustment you need to true the wheel.

    If you were in Melbourne you could bring your machine, cut the thread and true up your wheel no problem but I suppose Ballarat is a bit far. Maybe someone closer can help.


    Peter.

  8. #7
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    Thanks for the info Sturdee. I don't suppose I could bother you for a pic of the bar mod to show the owner? I may yet call on you for your assistance as I'll be in Mernda on the 23rd and going from there to Carbatec and on to Frankston on the morning of the 24th. Donvale is practically on the way to CT from Mernda so if you're up for it I'd be able to swing by on the way. And your shed and setup has long been one of the ones I'd love to see. I'll just wait a while before seeing if we can organise something though.

    I'll keep holding out for some local help and at the same time I'll talk to the guy I borrowed it from and explain the point of the truing tool and show him the mod needed to use the Tormek one.

    He's a surprisingly good amateur craftsman but lacks knowledge on the quality and maintenance of tools (it took me weeks to talk him out of buying Trojan gear when we were at TAFE together). So while he's happy to keep using an out of shape wheel I'd like to help him get better results and will possibly offer to go halves in the Tormek tool as way of apology for shagging his machine.

    BTW: I've now got a new friction wheel on back order at H&F. It won't get here until sometime in September so I'll see if I can mongrel something up for the old one to keep the machine ticking over until then. It stills works ok and can handle pressure on the grinding wheel...it's just not running smooth because of a flattened area about 1/4 of the way around the friction wheel.
    Every time you make a typo, the errorists win.

  9. #8
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    Quote Originally Posted by RedShirtGuy View Post
    Thanks for the info Sturdee. I don't suppose I could bother you for a pic of the bar mod to show the owner? I may yet call on you for your assistance as I'll be in Mernda on the 23rd and going from there to Carbatec and on to Frankston on the morning of the 24th. Donvale is practically on the way to CT from Mernda so if you're up for it I'd be able to swing by on the way. And your shed and setup has long been one of the ones I'd love to see. I'll just wait a while before seeing if we can organise something though.
    I live in Plenty, next suburb on from Mernda, and have a Tormek T7. Your more than welcome to drop in and check it out/use it if you like.

    Cheers,
    Last edited by Scott; 14th August 2013 at 12:34 PM. Reason: I'm my own spelling and grammar Nazi
    -Scott

  10. #9
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    Quote Originally Posted by RedShirtGuy View Post
    I don't suppose I could bother you for a pic of the bar mod to show the owner?
    Rather then take a photo attached is a link to the Tormek truing tool in action. In the picture you will see that one of the sections of the bar, holding it into the grinder, has a screw thread and nut for micro adjustments, which the Seppach does not have. I cut a screw thread on mine and bought a nut to do the same. Still have the thread cutting bit so you can bring that part in and do it if you already got the wheel trued.


    Quote Originally Posted by RedShirtGuy View Post
    I may yet call on you for your assistance as I'll be in Mernda on the 23rd and going from there to Carbatec and on to Frankston on the morning of the 24th. Donvale is practically on the way to CT from Mernda so if you're up for it I'd be able to swing by on the way. And your shed and setup has long been one of the ones I'd love to see. I'll just wait a while before seeing if we can organise something though.
    No problem, you're welcome. But I must warn you that I'm in the process of rebuilding the layout of the shed so it's a tad messy. Also if you're taller then me bring a hard hat.

    Peter.

  11. #10
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    Quote Originally Posted by Scott View Post
    ...Your more than welcome to drop in and check it out/use it if you like...

    Last edited by Scott; 14th Aug 2013 at 11:34 AM. Reason: I'm my own spelling and grammar Nazi
    YOU'RE not very good at it then
    Bwahaha...sorry. Had to do it. I'm the same...I'll edit posts umpteen times to fix my goofs.

    Thanks for the offer Scott (I love how friendly/show-offy folks are here). I'm going to be pretty pressed for time if I end up banging my head at Sturdee's as well but I'll see if I can squeeze in a few minutes to drop in to say g'day. I'm always up for meeting other forumites.



    Sturdee:
    Ahh yep. I see what it is now. Cheers. I'll explain it's function to the owner when I talk to him.

    Sheds get messy? Who'da thunk it? I have to move stuff out of mine just to be able to get in; then it's a matter of riding a camel over the mounds of shavings while being careful not to fall into the Sarlacc* to get to the bench...so I'm sure yours will be fine

    *If anyone gets that reference, you're a legend.
    Every time you make a typo, the errorists win.

  12. #11
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    Hahaha! I like it! The camel ride gave the sarlacc away! I'm not a die hard fan BTW!
    I did read it twice though.

  13. #12
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    Quote Originally Posted by RedShirtGuy View Post
    going from there to Carbatec and on to Frankston on the morning of the 24th. Donvale is practically on the way to CT from Mernda so if you're up for it I'd be able to swing by on the way. And your shed and setup has long been one of the ones I'd love to see. I'll just wait a while before seeing if we can organise something though.
    I'm sorry but my wood turning club's monthly meeting is on that Saturday morning so I won't be home until 12.30 pm. So if you spend longer with Scott and come in the afternoon it's fine else we'll have to take a rain check.

    Peter.


    Ps. The Friday before is okay as well.

  14. #13
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    That's fine Peter. I ended up getting a replacement friction wheel very quickly from H&F (they originally mistook my part request as a honing wheel) and have had the machine running again. It seems like some selective use of the grinding wheel with thin chisels has leveled it out pretty well, and possibly even better than when I got it. So while it still needs to be trued properly I don't think it's as necessary now and I'd be happy to give it back as is.

    The offers off help have been hugely appreciated though. I'll probably be knackered by the time I head back to Ballarat from Frankston in the afternoon, otherwise I'd see if I could still swing by to check out your mess. Next time I guess.
    Every time you make a typo, the errorists win.

  15. #14
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    Quote Originally Posted by RedShirtGuy View Post
    YOU'RE not very good at it then
    Bwahaha...sorry. Had to do it. I'm the same...I'll edit posts umpteen times to fix my goofs.

    Thanks for the offer Scott (I love how friendly/show-offy folks are here). I'm going to be pretty pressed for time if I end up banging my head at Sturdee's as well but I'll see if I can squeeze in a few minutes to drop in to say g'day. I'm always up for meeting other forumites.
    No problems, just PM or whatever closer to the time and I'll make sure my shed is a bomb
    -Scott

  16. #15
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    Old story but I've always figured that with a bit of care and the right jig, a single point diamond truing tool might be made to do the job.

    The V. jig seen in the link below will take one providing the plakky washers are removed. Added: it will ride on the universal mounting bar.

    Cleaning and truing bench grinder wheels » Ern's website

    HTH.
    Cheers, Ern

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