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Quorn Kit

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Terryd10/06/2011 10:49:11
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1946 forum posts
179 photos
Hi there,
 
There is a part completed Quorn Kit for sale on eBay at the moment which the seller tells me contains everything shown in the photographs included with the listing. He has also claimed that it is a complete kit, but on counting the castings in the pictures there appear to be several missing, notably the two base castings and at least two others.
 
From what I have seen of the Quorn kit, there should be 15 castings including 1 x bronze (gunmetal?), 4 x aluminium and the rest iron. The eBay 'kit' shows only 11 castings.
 
Is there anyone who can confirm the number of casting actually used in the kit, am I correct in my information?
 
Best regards
 
Terry
Gray6210/06/2011 13:20:24
1058 forum posts
16 photos
Hi Terry,
I have just checked my drawings and parts list, here should be 16 castings for a Mk2 kit.
 
Despite the fact that there seems to be a lot of completed parts, I think the price a little high considering there is no motor or grinding wheels included. It certainly looks like the base castings are missing, I can't make out what others but as the book is included, the seller should be able to confirm all the parts that are missing. Keep in mind that a suitable motor will cost you upwards of £60, I think there are better bargains to be had. I paid £200 for a complete kit with the motor.
Here are a couple of useful links to building a Quorn which has some good info in them.

 
 
 
regards
 
Graeme
John Stevenson10/06/2011 13:43:22
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5068 forum posts
3 photos
Go for it Terry, and because of the missing castings you will be better equipped to tell everyone you are building a Quorn.
 
This should get you membership of the greater part of Quorn owners, the 90% who are 'building it' compared to the 10% who have

John S.
David Clark 110/06/2011 15:44:55
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3357 forum posts
112 photos
10 articles
Hi There
The next MEW has an article on a superb little cutter grinder.
Looks easy to make.
Designed by a couple of people in the Bristol Society.
I will be making one.
Drawings will be available from the Bristol Society for £12.50.
No castings are needed.
regards David
 
 
 
 

Edited By David Clark 1 on 10/06/2011 15:45:45

Keith Long10/06/2011 17:29:21
883 forum posts
11 photos

Terry - have you looked at the Bonelle cutter grinder design. Looks as though it follows very much the same principles as the Quorn but is made from standard stock materials rather than castings. I believe that the drawings are available free on the internet.

Keith

Terryd10/06/2011 21:51:36
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1946 forum posts
179 photos
Hi Graeme,
 
I'm certainly not considering it at that price although it was originally an auction sale and was bid up to about £57.00 and I was reasonably interested at that sort of price. Obviously someone has said something to the seller and he withdrew it and has put it up at this ridiculous BIN price.
 
I don't think that the seller is too bothered about confirming the completeness of the kit. In answer to an earlier question he said that his "fitter thought that the kit was complete" and in answer to a question of mine he said that there were no other parts and they were all in the photograph. He has the drawings as well as the book if he needs to confirm.
 
By the way, I managed to buy a late edition of the book in excellent condition for 1p from an Amazon seller (plus postage of course) but being a Scrooge I thought that was my kind of bargain.
 
Best regards
 
Terry

Edited By Terryd on 10/06/2011 21:52:22

Nicholas Farr10/06/2011 22:12:17
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3988 forum posts
1799 photos
Hi Terry, if its the one I think it is, your too late anyway, as it has ended.
 
Not by me BTW
 
Regards Nick.
Jeff Dayman10/06/2011 22:26:49
2356 forum posts
47 photos
Posted by David Clark 1 on 10/06/2011 15:44:55:
Hi There
The next MEW has an article on a superb little cutter grinder.
Looks easy to make.
Designed by a couple of people in the Bristol Society.
I will be making one.
Drawings will be available from the Bristol Society for £12.50.
No castings are needed.
regards David
 
 
 
 

Edited By David Clark 1 on 10/06/2011 15:45:45

David, I noticed a couple of potential issues abut the pictured grinder, based on my tool design experience.
 
1. the spindle bearing support is VERY short. This could lead to excessive wheel runout very quickly, and inaccurate grinding. longer spindles with a good distance between bearings (usually 4 x shaft dia min is a common rule of thumb in NA) are better
 
2. I hope way rod covers are planned or there will be very rapid wear of the rods, especially with bronze bushings riding on them.
 
3. belt looks undersize.
 
4. guard for belt is missing. machine is unsafe without a guard over the belt.
 
5. machine looks "wrong handed" unless it's for a lefty operator. If I'm looking at the back side in the photo somehow, the motor will be in the way of normal operation.
 
6. control box is right in the dust (not good for electronics) and behind the spindle. (dangerous to get to in an emergency)
 
JD

Edited By Jeff Dayman on 10/06/2011 22:27:43

David Clark 110/06/2011 23:18:44
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3357 forum posts
112 photos
10 articles
Hi There
You can make it which ever hand you wish.
I would reverse the hand I expect.
You can lengthen the bearings and fit way covers.
Buy whichever belt you want.
The box looks sealed and is well clear of the motor.
Feel free to fit guards.
Finally paint it

Green

regards david

Edited By David Clark 1 on 10/06/2011 23:22:27

Terryd10/06/2011 23:29:23
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1946 forum posts
179 photos
Posted by Nicholas Farr on 10/06/2011 22:12:17:
Hi Terry, if its the one I think it is, your too late anyway, as it has ended.
 
Not by me BTW
 
Regards Nick.
 
Hi Nick,
 
Thanks for the advice, but I wouldn't have even considered it at anywhere near that price. I'd rather build a furnace and make my own castings before paying that much. I don't think it was sold though, I have a feeling it was taken down. The seller keeps breaking eBay seller policy by including a cap head screw called a 'Myford Bolt' to attract customers. This is known as 'keyword spamming' and the practice is banned by eBay. All of his engineering type sales include this 'Myford Bolt'.
 
Best regards
 
Terry
John Stevenson10/06/2011 23:39:15
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5068 forum posts
3 photos
Yes but all his auctions that contain the word Myford bolt also contain a Myford bolt.
 
And as he's one of the biggest dismantler's of Myford lathes I'm sure the bolt is genuine.
 
 
John S.
GoCreate11/06/2011 06:36:49
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387 forum posts
119 photos
David
I think that looks a great project, a much faster and easier build than the Quorn. It's ideal for the begiinner as there is plenty scope to easily add your own variation and "improvements".
 
It's easier to use ones own expeience to modify a design, it's much more difficult to orgininate a design (and keep everyone happy).
 
JD. part of the satisfaction is to add your own stamp onto a project, this design is an ideal starting point for developing your own inventive skills and ideas. I don't think ME needs to be concerned to much about intimate detail, leave it to the hobby to develop the initial idea as each individual sees fit, beginners will learn from that discussion and experience.
 
I think it looks fine as it is and will do the job intended.
 
My variation would be to raise the bed and have the motor underneath and perhaps use a poly vee belt and yes, make it right hand. May be I will make an epoxy-concrete base just for the experience and joy thanks to another thread on this forum.
 
I am sure there are plenty ideas to share.
 
Cheers
Nigel
 
Oh, BTW I will paint mine orange (how do you get coloured text?)

Edited By tractionengine42 on 11/06/2011 06:37:59

Edited By tractionengine42 on 11/06/2011 06:39:56

John Stevenson11/06/2011 09:39:14
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5068 forum posts
3 photos
Does everyone need the complete words and music to make things ?
 
How may can look at a part / attachment and realise that if this part was modified it would suit the user better.
 
So far this grinder hasn't hit the news stands but it's already being trashed, now I can understand anyone pointing out various points that may detract form how it works, the 4th axis argument that was put forward by Tony Jeffree and myself is an example.
 
However once you know these pitfalls it's a simple thing to modify to suit or is it that some / most people can't manage to do this and with a T&C grinder there will never be one machine suits all
 
I saw the picture of this in MEW as part of what's in the next edition. the bit that stuck out to me was the end of the bed was unsupported. No problem, if I was to build one I'd just make a bracket, no big deal.
 
If you can't visualise and adapt then you ought to take up knitting, they have better instructions.
 
John S.
Nicholas Farr11/06/2011 10:36:28
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3988 forum posts
1799 photos
Hi John, could not agree with you more. I too saw the picture on the next edition page, and thought I would make a support bracket for that unsupported end. I'm sure this machine was tried by those who designed and built it, and undoubtedly it works OK as is.
 
I don't myself always have ideas to produce something out of the blue, but to modify something or use different materials/sizes or even add a bolt on, no problem. I've done this even with commercially made industrial machines. Of course sometimes bits can even be removed to improve its suitability for ones own needs.
 
Regards Nick.
 
 

 

Edited By Nicholas Farr on 11/06/2011 10:39:14

Steve Garnett11/06/2011 11:00:17
837 forum posts
27 photos
Posted by John Stevenson on 10/06/2011 23:39:15:
 
 
Yes but all his auctions that contain the word Myford bolt also contain a Myford bolt.


Oh yes - just like this one. Probably my favourite!

NJH11/06/2011 11:04:18
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2314 forum posts
139 photos
Well I could do with a few Myford nuts & bolts but it seems they are too expensive on ebay!

Norman
John Stevenson11/06/2011 11:15:07
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5068 forum posts
3 photos
Like it or loath it he's doing nothing wrong by Ebay's rules.
If you read his description he's selling the actual bolt or nut.
 
Unlike some others who list a morse taper sleeve like MT3 to MT2 as being suitable for Myford, when a MT3 doesn't fit a Myford.
 
John S.
magpie11/06/2011 12:04:04
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508 forum posts
98 photos
I like the link posted by Steve G. My definition of a Myford nut, is someone who thinks that no other lathes exist. So how the heck do'es he get them to keep still while he wraps them for posting?
John Stevenson11/06/2011 12:51:44
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5068 forum posts
3 photos
Shows them a price list from the 50's and while they are still in a trance whips round with 5 turns of bubble wrap.
 
John S.
Steve Garnett11/06/2011 13:09:17
837 forum posts
27 photos
One is almost tempted to post a question asking him what the exact purpose of the Myford nut is in the model plane kit...

Edited By Steve Garnett on 11/06/2011 13:09:38

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