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Messages - TheSeldomSeenKid

#1
@Ken S Consider getting a cardboard box the size of the Tormek and using a variety of tables, stools and chairs, see what would be comfortable when mimicking sharpening.

Note: There are a some excellent doctors who specialize in balance disorders. Consider calling Dr. Ian Purcell at the Senta Clinic in San Diego, as it may be possible he has a recommendation for someone in your area.
#2
@RickKrung @cbwx34
The picture of the swiss army knife (thanks @cbwx34) makes sense, works, and I have used rods/wedges before for squaring a swiss army knife.
The SVM-100 is used for the horizontal and vertical reference and the rods/wedges push the knife handle into the reference surface.

This is similar in concept to how a block is squared up on a mill. (If you are not familiar, consider watching a YouTube video by Marc Lecuyer "Block Squaring on a Milling Machine ...".)

Custom handles which are not square or blades which are not square to the handle are more difficult, since the svm-100 can't be used as the sole primary reference points. This is where the alignment jig is a great help as you can see how the handle needs to align. Small tapered pins or wedges can be used for gap filling. This is where the TPU is helpful, as tightening the SVM-00 doesn't push the pins out of place. This works, but I would prefer it to be even easier.


#3
@RickKrung "You seem entirely convinced that the devices you've come up with will work and solve the issue of mounting and aligning small knives in the Tormek jig.  I think you'll need to get it into the hands of non-vested users for independent trials and testing.  This will give you the best chance of refining your design if need be and/or demonstrate to others that it works as intended.  I for one would not be interested in shelling out my money on an untested and uncertain prospect such as this."
Yes I am convinced that this problem can be solved.
1. It's not that hard of a problem.
2. I have working prototypes.

In the "Agile Process" being used, customer collaboration is non-optional and is a key value. I don't advocate selling or buying things that don't work.

Important: The poll is to see if its worth the time and money to create a refined product for other SVM-00 users.

@RickKrung "The question I have is not about the alignment aspect, rather how well the packings you speak of can actually maintain the alignment sought.  Based on the posted photos, I cannot determine what those "packings" are and how they hold the knife in the desired position.  As far as I can tell, all that is shown is the alignment pieces."
Correct. I did not provide pictures of the handle packing.
Currently ThermoPlastic Polyurethane (TPU) is the handle packing material of choice. It is non-marring, flexible, has limited compressibility, limited deformation, good thermal properties, abrasion resistant, etc..

Note: The pictures provided are of the a initial proto-type and do not represent a final polished product. It was provided so people who wanted to know how it worked, had a visual.

Rick, I hoped this addressed your questions and concerns. If not let me know.
#4
@cbwx34 "Why couldn't you just have the piece that slides onto the SVM jig, then have the lower piece with the V shape come up and center the edge... that should be enough to center the blade for "packing" the handle and clamping?  I'm not sure you'd need more than that and spine to edge taper wouldn't matter."
The goal when packing the handle and tightening the SVM-00 is not to disturb where you want the blade either horizontally or vertically. Blade handles in many cases, especially wooden handles are not uniform, so the ability to pack without the blade moving was an important requirement.
When the pins are inserted and all the components are touching the blade and handle is fixed in space, relative to the spine of the SVM-00.

Component 2 provides the vertical height adjustment to lock the blade in place so it wouldn't tip up or down when packing or tightening the SVM-00 jig.

In the initial prototype, component 2 was just spacers of different heights, that can be stacked, so the designed vertical alignment is achieved.
#5
@tgbto "So from what I understand, it will work for blades with straight (parallel) sides."
The sides don't have to be straight. The capture is done on the edge. We are trying to get the edge aligned with the center of the SVM-000. So we need a relatively straight edge. If we needed to do a blade with a chisel grind the piece that captures the blade would be cut at that angle.
The center shims (Component 2) will accommodate width differentials.
I hope this answers what you are thinking, if not let me know.
Remember the pictures are from the first prototype. Not the current design.
#6
For those who want photos.

Note:
- This is the very first prototype. This was to see if the concept worked. This is not the final.
- The shims shown in the center shown do not cover the gap so you can see how it goes together.

Photo 1: The components (Handle packing is not shown).
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Photo 2: How to set it up. Note: One of the side shims is removed for clarity.
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Photo 2: Showing an old carving knife inserted/entrapped into the component 3.
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Photo 3: How it looks with the SVM-100. Note: Non-gap covering shims shown. The jig would be slid slightly toward the SVM-100 and tighten, prior to shimming the handle,
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#7
General Tormek Questions / Re: T8 Recommendations?
February 22, 2024, 01:27:50 AM
@cb200t
You may find this amusing:
When I first started using my Tormek, my wife walked into the shop and asked why I was standing in a puddle of water.

I still spill with long knives but this is caught in an old baking tray. The tray sticks well enough to the mat on the table that it doesn't slide, but can be rotated easily for honing. When I am done I lift the Tormek out of the tray and drain the coolant through a coffee filter into the graduated used coolant container.
#8
Background:
There are five main components to the jig:
Component 1: Slides on the SVM-100. This provides the reference to the SVM-100.
Component 2: Goes over the blade and holds it secure. This provides the reference for the blade.
Component 3: Are shims that goes between Part 1 and Part 2 so that the jig/fixture is parallel and centered to the blade .
Component 4: Steel dowel pins which hold the above three components in alignment.
Component 5: Handle packing.

Use:
Use is simple (it takes longer to describe than do):
Step 1. Slide component 1 over the spine of the SVM-100.
Step 2. Put the knife into the SVM-100 with a loose and sloppy fit.
Step 3. Put the blade into component 3.
Step 4. Stack the three components (1,2,3) and insert the steel pins (component 4).
Once the pins are pushed in place we have alignment (horizontal and vertical) between the SVM-100 and the knife blade.
At this point the handle should be loose inside the SVM-100.
Step 5. Pack the the handle (using material from component 5) and tighten the SVM-100. Since the knife blade is not going to move out of alignment, this step is very easy.
Step 6. Remove the alignment jig components.
Now you should be ready to go.

Background:
My need for this stemmed from frustration aligning an old Italian carving knife that I wanted to reprofile and whose blade was not in alignment with the handle. Other use cases have been: multi-bladed "Swiss Army" and other knives, whose blades are obviously not in the center of the handle. The other issue I ran into was handles that would cause the blade to move out of alignment when tightening the SVM-100.

The idea to solve the problem stems from creating a repeatable jig or fixture for machining parts. If this is not a familiar topic you can find course work for shop jigs and fixtures on YouTube by ThatLazyMachinest.

Hopefully this answers your question and makes sense. If not please let me know.


#9
Sometimes it is very difficult to have the knife blade align with the spine of the SVM-00 Small knife holder.

This can be due to various reasons: a multi-bladed knife, a single bladed knife in which the blade is "kicked" to one side, etc..
If you have an SVM-00 you may have spent considerable time trying to get the handle packed properly so the blade aligns.

I have designed and built a easy to use jig which aligns the blade/handle very quickly.

This poll is to help determine if it is worth the effort to make the jig available to SVM-00 users.
#10
General Tormek Questions / Re: End Mill Sharpening
February 21, 2024, 05:02:21 AM
I would doubt it (but I could be entirely wrong). Reasons: limited market, complexity, required rigidity and precision.
Note:
I own a dedicated end mill sharpener and its fairly involved (conical diamond wheel, air spindle, collets to maintain concentricity, carriage, flute indexing, etc..).