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Drill Doctor
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sparky961:

--- Quote from: awemawson on December 23, 2016, 10:14:10 AM ---I'd assumed that he'd painted it with layout blue to see better where the grind was  :scratch:

--- End quote ---

Same assumption here.

The drill still looks pretty rough from what I've seen and used coming off a Drill Doctor.  Maybe I'm not considering the magnification factor of the picture correctly?

I'd advise you stick with it.  Keep trying to adjust this and that, both your technique and the settings on the machine.  Most people I've spoken with regarding the Drill Doctor will say that they do produce very good results but it takes some practice to get the right feel for using it.  I have been very close to purchasing one myself a few times, but the $200 CAD price tag is a bit of a deterrent.  Maybe some day when I'm in the right mood and its on sale.

Although I get very acceptable results sharpening by hand, there are times where I want a perfectly symmetrical drill and I find this difficult to achieve with any amount of speed and repeatability without some kind of device of fixture like this.  You should be able to eventually achieve that result with the Drill Doctor.

Your idea of bluing the tip (we're assuming) is good.  The way I check is to chuck up a small piece of aluminum in the lathe, very slow speed, and feed the drill at a moderate rate while watching how the chips curl away.  On a lathe, rather than a drill/mill, you can easily see how the chips are coming off the stationary bit and which cutting lip is taking more or less material.  With a bit of time and care you can adjust a drill but by hand to cut pretty darn close to perfect - but it takes a while going back and forth between the lathe and grinder/belt.  I think when you get good at it the Drill Doctor should be faster and produce better results.

I've been watching this thread to see where it takes you.
John Rudd:

--- Quote from: awemawson on December 23, 2016, 10:14:10 AM ---I'd assumed that he'd painted it with layout blue to see better where the grind was  :scratch:

--- End quote ---
Yup I agree, layout blue to see where its being ground.....the colour is too consistant for it to have been overheated.... There are no shades of blue or any other colour...( fifty shades of grey mebbe.... :lol:)
PekkaNF:
No fifty shades of blue...just used blue felt tip pen. Hard to see othervice under magnifuing glass the chissel point accurately.

The quality of sharppening has got better by two factors:
* New diamamond wheel seems to have some bigger particles in it and after about 15 sharpening trys the biggest ones are mostly gone now
* those pebels might have caused resonance....or I have learned to hold the drill chuck firmer, or both
* Those plastic parts are made for certain tolerances, it might be a little stiff at the begining.

I agree this needs a little bit more involvment. Drill doctor just might be cheap enough to buy, but not too cheap to be any serious use. Downside is that you must be pretty observant and know what adjustment to use. It is not just point and shoot.

I have been watching some videos and looks like most people are happy when drill cuts. I think that is not nearly enenough....drill has to cut to size and should keep the edge long.

More learning and practicing to do.

Pekka
RobWilson:
All interesting reading lads.  :thumbup:

It looks like I may have the problem sorted,  :palm:   I went for an eye test today and I need specs for close up work, so specs on order, I should have them in 12 days  :borg: 

So hopefully I can just return to free hand sharpening  :dremel:


Rob
appletree:
Are they the 12 days of Christmas by any chance?
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