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#21
Drill Bit Sharpening / Re: Non-Tormek "Micro" Drill B...
Last post by RickKrung - May 11, 2024, 10:57:18 PM
Quote from: RichColvin on May 11, 2024, 09:01:48 PMThose tools are really cool!  Thanks for sharing.

Agreed, and fills the gap of less than 1/8" dia. that the DBS can't do. I hope to try making a holder/collet for doing up to 3/16" or 1/4" on it.  But...  I have yet to seriously try adapting the Starrett pin collets to the DBS drill holder for the smaller sizes, even 1/8". 

I see a substantial improvement in precision of the Meteor workings compared to the Tormek.  The DBS is quite excellent, much better than most other options in the price range (and lower) but there is a lack of rigidity and repeatability due to the suspension method (USB).  The alignment microscope of the Meteor is significantly better as well. 

Rick
#22
Drill Bit Sharpening / Re: Non-Tormek "Micro" Drill B...
Last post by RichColvin - May 11, 2024, 09:01:48 PM
Those tools are really cool!  Thanks for sharing.
#23
Drill Bit Sharpening / Re: Non-Tormek "Micro" Drill B...
Last post by RickKrung - May 11, 2024, 05:35:49 PM
Point angle, relief angle are directly indicated by graduated scales (red ellipses).  Point angles available are quite wide.  Clearance angles up to 20º.  There is a lever-actuated swivel function to put the drill into grinding position, with a positive stop.  It appears there may be options for this stop as it rotates on a shaft, but I haven't figured this out yet. 

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Three point geometries are possible, traditional 2-facet (trypical retail), 4-facet and web-thinned.  Pictured is a 1/8" drill, first as 2-facet and then as 4-facet.  The manual describes web-thinned as used only with the 2-facet point and only for the much smaller diameter drills because the webs make up a larger proportion of the overall point.  Oh, and it will do both Right and Left twist drills. 

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Shown are the 2- and 4- facet points.  Primary facets were done at 9º.  Secondary facets were done by changing the clearance angle to 23º.  I haven't seriously tried the split pointing, but what little playing with it I did, trying to figure it out, indicates it could be really sweet. 

Rick
#24
Drill Bit Sharpening / Non-Tormek "Micro" Drill Bit G...
Last post by RickKrung - May 11, 2024, 05:32:40 PM
I've recently come into a fairly unique, high-end, "micro" drill bit grinder.  Swiss-made, Meteor CH 1, for drills 0.008" to 0.125" (~0.2 to ~3.2 mm) diameter.  These appear to be quite rare.  I've only been able to find information on seemingly more recent or larger capacity (up to 6mm, 0.236") version2, Meteor KSB 3 and KSB 6.  Lathes UK does have limited information, but it is the most extensive that I've found.  Spare parts appear to be equally rare; I've found only on potential source and they have not responded to an inquiry. 

Gringing wheels are about 3" dia., some are carborundum and some are diamond.  Pictured is the diamond, think it is 400 grit.  I have found only two of the KSB models for sale on eBay, from $1200 - $1800.  The two units I have were given to me free.  Only one is complete and fully functional.  The other is in good shape, just not much moves, so full disassembly and cleaning may be necessary. 

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Drill bits are held in a small collet that indexes at 180º.  Indexing groove visible at lower right end of the collet assembly.  Alignment is similar to that of the Tormek DBS-22, but much higher magnification and apparent accuracy. 

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I've had to work with the alignment to get things to work well, which is not well described in the manual.  Manual I have is for the KSB 3 model but seems to be identical to the "CH 1" model I have.

Grinding of a facet.  Works extremely well, fast and easy.  Tight and precise with minimal movement. 

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Reached limit of photos for a single post, so more to follow. 

Rick
#25
Knife Sharpening / Re: How to achieve less than 1...
Last post by Ken S - May 11, 2024, 04:04:01 AM
Sir Amwell,

You raise some good points. Thepursuit of 50 and sub 50 BESS numbers strikes me as pursuing the Holy Grail. Lots of bragging rights with little added practical  value. I am much more interested in an edge with staying power to cut the tomato.

I do believe BESS testing is useful in testing for residual burr, more for identifying the presence of remaining burr than for the numbers themselves.

I believe the best BESS technique is focused on accuracy rather than low numbers.

Ken
#26
Knife Sharpening / Re: How to achieve less than 1...
Last post by Sir Amwell - May 10, 2024, 10:11:38 PM
Just to add my pennies worth. I think Bess scores in the range of 150 (130/140/150/160/170) indicate that the burr has not been completely removed.
Whilst I gave up chasing sub 50 Bess a long time ago I still use the tester to indicate to me that the burr has been properly dealt with. I'm happy with anything under 120 and more than happy under 100.
So I think maybe you need to pay a little more attention not just to bevel angle but honing technique. The Tormek compound on leather wheel is good for most steels but harder steels really need diamonds and a very precise honing angle to completely remove the burr.
One important thing I took from studying Wootz book on sharpening is that the secret is not just achieving a true apex on a knife edge but how to remove the burr.
That is why his book is titled as it is.
#27
Wood Carving / Re: SVD-186R for large bent go...
Last post by MerryMadMick - May 10, 2024, 09:59:32 PM
I'll post images once I get it done. 

All the best.
#28
Knife Sharpening / Re: How to achieve less than 1...
Last post by Ken S - May 10, 2024, 08:54:01 PM
I am a longtime eliever in BESS. However, I also do the chopping for our home meals. I recommend you do the same. Working regularly at your cutting board will give you invaluable "from the trenches" feedback about your knives.

Ken

PS For some reason, Wootz changed the bevel angle setting in the middle of the video.
#29
Wood Carving / Re: SVD-186R for large bent go...
Last post by Ken S - May 10, 2024, 08:46:32 PM
Welcometo the forum, MMM.

I like your 3D printing idea! I think the SVD-186R is one of Tormek's best designed jigs. It works very well or tools within its designated size range.

Please keep us posted about your 3D design.

ken
#30
General Tormek Questions / Re: Newbie here....
Last post by Ken S - May 10, 2024, 08:41:05 PM
Welcome to the forum, Ed.

Move the applicable online classes to the top of your to do list and don't be afraid to watch the most applicable lasses more than once.

I started the pinned tips and tricks topic pinned at the top. (I did not choose the topic name or expect so many replies.) I am a firm believer in first learning with a chisel. It is the most basic edge and a great teacher.

Start with practice sharpening on reasonably priced tools, not junk tools, to learn.

Eep in touch.

Ken