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Thread: Slideway grinders go for a song
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24th July 2015, 09:36 PM #181SENIOR MEMBER
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Dont get too hung up with that CBN thing. Especially as your are starting. They predate your grinder by 4 decades. Nothing wrong with conventional wheels. Don't discount the Ceramic SG wheels for grinding cast iron. Or even old school Silicon carbide - green wheels.
http://www.nortonindustrial.com/uplo...references.pdf
In the next month or two, your about to find out what a slow, boring, monotonous job slide grinding is. Some thing that looks like an hour soon becomes 16..
I fear you have picked up the CBN thing from the video we did at C.P.E some years ago. How do you type Borizon with an Eastern European accent?
That's more often to do with throwing in some metal spraying. Apparently that cant be done, according to my brothers over at P.M. But we do it 4 times a year.
Old fashion wheel will end up in the same place, its a matter of roughing, dressing and spark out finishing.
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24th July 2015, 10:09 PM #182SENIOR MEMBER
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I really would *not* put plastic over the steel. It will deform quite badly, sag and increase rolling resistance markedly.
Voice of experience here - I had some nice wheels with a very hard rubber/plastic bonded to the underlying cast iron wheels. I managed to almost pull one tyre off doing a 90 deg skew turn of the HBM to get it into the shed.
Bare steel may (will) score the floor a bit especially in turns, but it won't deform significantly. In the end I just used a porta-power with a short ram to take the strain while I repositioned the skates to keep the rollers in line with the direction I wanted to go. It was a bit fiddly, but worked.
Of course if you're going to make fancy steerable skates, ignore my comments....
PDW
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25th July 2015, 07:19 PM #183Pink 10EE owner
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Yes there and also talking to the operator of the grinders at CNC Eng... They just used CBN exclusively. The maintenance manual booklet has lots of helpful hints, like roughing cuts to be no deeper then 0.0005 and finishing cuts 0.0002... I know it will be slow, but quicker then scraping, plus I have some other ideas as well
I know it is just a pity metal spraying cannot be done in machine tool ways...
I always thought those plastic wheels I see on skates have a steel inner.. Did not think that plastic could stand up to tonnes of weight, especially if they only have a bearing at each end... I am trying to keep the profile of them as low as possible... Having tipped a stripped machine over (did no damage and it was only a shaper. These days the lower to the ground the better... Of course the grinder is not top heavy like everything else I have... So I am seriously thinking solid bar rollers for the grinder, the small skates for my light stuff...Light red, the colour of choice for the discerning man.
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26th July 2015, 09:18 AM #184SENIOR MEMBER
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Pretty sure you're right but it's a very hard nylon type material. The place that advertises replacement rollers on eBay - KK Materials Handling - isn't all that far from where I am ATM so I plan on picking up a couple sets to take south with me.
The boat rollers are steel, I bevelled off the edges a bit to minimise cutting into the concrete. I'm going to have to repaint the floor once the boat goes so I'm not too picky about score marks anyway.
PDW
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26th July 2015, 03:46 PM #185Senior Member
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Bloody hell RC I go away for 4 weeks and you have the machine operational and the foundations poured!!
Mine is still on the truck. Its so wet at the moment I can't see it moving for a few weeks.
Thanks for copying the manual. Its exactly what is needed to plan my foundations.
Will have to get my finger out.
Mark
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26th July 2015, 04:28 PM #186Pink 10EE owner
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Yes things have moved quicker then expected here Mark.. A crane putting a grinder in the way sort of accelerated plans a bit...
Light red, the colour of choice for the discerning man.
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26th July 2015, 04:34 PM #187Pink 10EE owner
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26th July 2015, 05:33 PM #188SENIOR MEMBER
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I've been watching him. I cracked a beer 3 or 4 days ago, last I checked, when he was drifting past Gibraltar. That's Europe.
Makes me wonder if they have to re-stack the vessel, in any of those ports. I had hoped it was just one short road trip in Sydney, sit on the boat for 6 weeks, and hopefully no cyclones, and a few hundred mile road trip to Wales.
I should have welded the table to the base.
Phil.
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26th July 2015, 05:45 PM #189SENIOR MEMBER
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You haven't had a change of heart by any chance. In my talks with the U.K buyer, he expressed regret about not buying the 6 foot machine.
I note the 6 footer in the U.K has sold. http://www.ebay.co.uk/itm/Churchill-...p2047675.l2557
I passed that lead on, maybe it was them.
Regards Phil.
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27th July 2015, 06:47 PM #190Pink 10EE owner
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C'mon Mark... Still waiting for close up pictures of your 6 footer... chop chop...
Light red, the colour of choice for the discerning man.
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27th July 2015, 07:11 PM #191Senior Member
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Hi Phil,
No change of heart at this end, in fact I still can't believe I managed to buy, it let alone at for the price paid.
I'm going away with work again at the end of the week so it won't be moving anywhere soon. No real hurry as the new shed won't be ready for some time. The shed builder I hired just had bilateral knee replacements and he is struggling to get going again. By the time he's ready it will be harvest time and then too hot so probably end up delayed till early next year. Plenty of time to get the foundations right!!
Richard pictures might be a way off as it is covered in shrink wrap and happily cocooned at the moment.
Did you still want a look at the arbor that came with mine? Can arrange some pictures if you like.
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27th July 2015, 07:53 PM #192SENIOR MEMBER
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27th July 2015, 07:55 PM #193Pink 10EE owner
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We could do a deal Phil... How does an 8mm chain with a hook on it sound for a swap
Light red, the colour of choice for the discerning man.
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28th July 2015, 11:13 AM #194SENIOR MEMBER
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I'll meet you at the border for the exchange. Goondiwindi Bridge, Sunrise. Come alone, or the wheel adapters get it.
I found these, they seem to have that short Morse female taper. Fairly narrow wheel gripping width less than half an inch. I'd guess they are for saucer wheels.
P1010314.JPGP1010312.JPGP1010313.JPG
Regards Phil.
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28th July 2015, 06:01 PM #195SENIOR MEMBER
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Listen to Da Man Mark, chop chop! All being well I'll have the Type 0 finished this week and then I will have to get a 9" bed ready as a crash test dummy for you
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