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Post by robhk on Dec 26, 2006 18:53:23 GMT
People, Think I've solved a mystery that's been puzzling me for for a long while.......I've read many tales of woe regarding these inexpensive sharpeners and couldn't figure out why those good folk had no success. Have used a 'General Drill Sharpening Jig' for some 20 yrs. with very acceptable results. A friend was throwing out a similar jig and said he couldn't get it to work....and I could have it.Took it to my workshop and tried it.......no backoff whatsoever. Compared it to the 'General' and the penny dropped..... See pics..... [   Compliments of the Seaon to all and may peace reign upon all of us on this good planet Earth. |
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Post by craig on Jan 7, 2007 22:08:53 GMT
Had one for years, now I know why it will not work.
Well done sir.
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Post by mmaidnz on Jan 7, 2007 23:30:37 GMT
So what you're saying then is:the el cheapo version grinds at67degrees,rather than the correct 59?
So if i mount the base at an 8 degree angle,the angle to the grinder would be correct?
Worth a try,if only for the satisfaction of getting some use out of a piece of junk:).thanks for the tip.
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Post by steammadman on Jan 21, 2007 22:00:09 GMT
well they work in blighty ok after a few mods,but,
down there in nz i don't know, after all your up side down aren't you?
heh heh
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Post by mmaidnz on Jan 21, 2007 23:01:56 GMT
You're right steammadman.We can do everything standing on our heads ;D.tee-hee-hee.
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Post by spurley on Jan 22, 2007 7:00:41 GMT
Sounds potentially messy ;D ;D
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Post by robhk on Jan 22, 2007 19:05:56 GMT
Question:
Why don't your hats fall off in Oz and NZ?
Life is impossible on the Moon - imagine all the pushing and shoving at half-moon.
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Post by ahernem on Jan 22, 2007 20:57:06 GMT
Thanks for the 98 - 90 degree explanation, now I also know why mine never worked properly!
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Post by Shawki Shlemon on Jan 23, 2007 6:41:08 GMT
In OZ and NZ our brains are so intense and strong that creates a strong gravitational power to keep our hats on .  |
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Post by modeng2000 on Jan 23, 2007 11:39:25 GMT
When you 'blow your own trumpet' do you have to suck instead?  |
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Post by Tel on Jan 23, 2007 21:36:42 GMT
heh, heh, you 'Round Earthers' really slay me.  |
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isc
Statesman
Posts: 708
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Post by isc on Jul 4, 2009 12:42:09 GMT
I,v got one that works OK,it doesn't have a name on it,but the pin that it rotates on is at 90*.My hat stays on OK,you need it these days-the snows not far away,10-12km or so.
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russell
Statesman
Chain driven
Posts: 762
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Post by russell on Jul 5, 2009 16:10:17 GMT
Harold Hall gives a very good explanation of how this type of sharpener works. The instructions that came with mine are c**p. However after reading Harold's explanation it works fine.
One of the main problems seems to be that the cutting edge should be vertical when presented to the wheel. If the projection of the tip of the drill beyond the jig is right to get the correct cone form the edge is not kept vertical by the little finger (at least not on my example). Harold hall shows a simple alternative way of maintaining the edge vertical.
Russell.
P.S. Here my hat must be at about 45 degrees!
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Post by charles on Dec 24, 2009 4:05:13 GMT
;D i have one of those silly things i have had from new.. bought it in jersey c.i so basically its a upright model but down here in oz i haft to screw it to the bench dam thing still brand new never been used i have a look at it every so often.. useless lump of cast iron charles |
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Post by goldstar31 on Jan 19, 2010 14:46:18 GMT
With Lidl.uk offering a 6" DE Grinder for £19.99 in a couple of days, my mind turned to doing drills on one. Googling a bit, I found a 13page article on 'Twist drill grinding attachment' in www://penturners.org.
Can anyone point to where Harold Hall's article can be found- or is it similar?
GS31
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Post by houstonceng on Jan 19, 2010 18:22:08 GMT
GS31 MEW, Issue 141, August 2008. If you join the ME/MEW Web-site at :- www.model-engineer.co.uk/you can see the issue under "Back Issues" |
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Post by goldstar31 on Jan 19, 2010 19:17:14 GMT
Andrew,
My thanks for the information. I thought that mine was one of the new variety but it seems to be a Reliance one after some rummaging in the undergrowth. Sorry to give you so much trouble!
GS31
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Post by houstonceng on Jan 19, 2010 20:37:19 GMT
GS31
No trouble.
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Post by Donald G on Feb 1, 2010 18:56:42 GMT
I too can now understand why I haven't been using it, although had it for years. I will see if I can modify it some, and try it again
Donald g
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