Hapstone R1 Teaser

jalapeno said:
Interesting idea with the upper and lower pivot rod bearing. I presume that was necessary to get a wide angle range?
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Exactly. Lower pivot is necessary to achieve ultra acute angles (down to 4 degrees). Upper pivot is necessary for high angles.

Diemaker said:
What about a compensator? That bottom pivot looks like it will get in the way if it were available.
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No compensator. Fine tuning + digital angle cube make the compensator an excess element.
 
Gritomatic said:
Stability
Hapstone V6 with rotating clamps was kind of Frankenstein. Lack of stability in the combo was one of the reasons why R1 was developed from the scratch.
You can see scheme with V6+rotating clamps on the left, and R1 on the right. Arrows are forces, yellow lines are arms. Center mass in V6+rotating clamps is shifted to the left causing instability. Center mass in R1 is shifted to the right due to the massive vertical rod, the massive base, and light-weight clamps.
Deluxe.jpg

From renders to real samples.
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Video:

The reason why front legs cannot be shifted towards clamps:
1510839103498.JPEG

All space in front of sharpener is reserved for modules.
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Thanks for the reply... but if your solution is to add more weight to the machine, I think it's the wrong path. A simpler solution... you could make a single flat "foot" (just like a real foot on a leg), that folded out from the center of the front legs, and "locked" in the horizontal position. Would pretty much eliminate the issue, and wouldn't interfere with the module. (Think of the foot looking similar to 1/2 of the clamp, a bit thinner/smaller if that makes any sense). :confused:
 
jalapeno said:
Assuming tsprof is your target competition and even thought their clamp rotation mechanism is arguably 'over-designed', I think your price point is too high especially with what appears to be a much less costly rotation mechanism. For the small price difference, I would guess that many will still opt for the "fancier" rotation mechanism in the tsprof.
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Let me answer without direct comparison with tsprof.
We have auxiliary rotating clamp system for V6, and we will have new R1. Rotating clamp system is the most complex part of high-end sharpeners. They cannot be over-designed or over-built. Clamp system consists of 3 main parts: rotary unit, rail, and clamps. All three parts are incredibly difficult to improve (in the high-end segment). The breakthrough we have is new design of rail: cylinders instead of the frame. Cylinders offer much more precision for clamp aligning and better usability. I assure you that R1 clamp system is not "much less costly". It could be the most expensive among all, including "customs".
 
Diemaker said:
Will the production model be steel too?
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Steel + aluminum. Just like shown in the photo above except surface treating/coloring.

jalapeno said:
If the drawing is to scale, the rod height adjustment looks very coarse. Is there a fine adjustment that isn't easily seen from the drawing?
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The big thumb is fine-tuning. The goal of fine-tuning is easy adjusting with precision 0.1 degree.
 
The second stock module is the extendable working table with magnets and 3-point guide. The feature is very similar to V7 but capable to do long blades (spread 7.5") and extra short blades (on the middle part only).
R1-table.jpg
 
Gritomatic said:
The second stock module is the extendable working table with magnets and 3-point guide. The feature is very similar to V7 but capable to do long blades (spread 7.5") and extra short blades (on the middle part only).
R1-table.jpg
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Could this be purchased as an accessory to the v7 (re: extendable working table). Looks like I'd fit my v7? I like having options...
 
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brasileiro said:
But the earlier version hardware like clamp... still will keep in production right?
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Do you mean rotating clamp system? It's an accessory for V6 only. Rotating clamp system for V6 is discontinued just like V6 itself, and selling while stock lasts.
 
Gritomatic said:
Do you mean rotating clamp system? It's an accessory for V6 only. Rotating clamp system for V6 is discontinued just like V6 itself, and selling while stock lasts.
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How long do you support your products? Didn't the V6 come out around 9 months ago? How old is the clamp attachment, 6 months? I call shenanigans. You need to support your sharpeners, as in parts and accessories, for at least years, like 10+ Period. I know EP does. I know they are on a fast development cycle, and I applaud them for it, but they have to support what they make with parts and accessories, and hopefully, be organized enough to make their accessories work with the new versions.
 
Diemaker said:
How long do you support your products? Didn't the V6 come out around 9 months ago? How old is the clamp attachment, 6 months? I call shenanigans. You need to support your sharpeners, as in parts and accessories, for at least years, like 10+ Period. I know EP does. I know they are on a fast development cycle, and I applaud them for it, but they have to support what they make with parts and accessories, and hopefully, be organized enough to make their accessories work with the new versions.
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I don't understand your viewpoint. During the warranty period, Hapstone will supply parts for its products. We have parts even for V5. "Discontinued" means the product will not be manufactured and sold anymore. Product cycling has nothing to do with "support".
 
Gritomatic said:
I don't understand your viewpoint. During the warranty period, Hapstone will supply parts for its products. We have parts even for V5. "Discontinued" means the product will not be manufactured and sold anymore. Product cycling has nothing to do with "support".
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It sounds like the accessories are no longer made. I consider "support" to include the accessories, as in they are still available years after you bought the sharpener.
When was the V5 released, 18 months ago? I would hope parts are still available.
 
Diemaker said:
It sounds like the accessories are no longer made. I consider "support" to include the accessories, as in they are still available years after you bought the sharpener.
When was the V5 released, 18 months ago? I would hope parts are still available.
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V5 is 2014 product. Spare parts are still available. We still have requests from V5 customers, and they receive replacements they need.
At the moment all V5 and V6 owners may purchase rotating clamp upgrade. For many reasons, Hapstone cannot keep stock of this particular product forever. However, new useful accessories will be made for V6 and V5.
 
Hi Konstantin,

I do not see any stone thickness compensator…

This is a well known of the Hapstone V6&7, Edge Pro and even Wicked Edge sharpeners.
I’m sure this feature will be missed a lot, if it does not come with the R1 sharpener.

Best regards,
Jens
 
Haffner said:
Hi Konstantin,

I do not see any stone thickness compensator…
This is a well known of the Hapstone V6&7, Edge Pro and even Wicked Edge sharpeners.
I’m sure this feature will be missed a lot, if it does not come with the R1 sharpener.
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R&D has decided to remove the thickness compensator from R1. They have found out that fine-tuning feature makes the compensator not very useful. When switching stones of different thickness it's faster to do fine-tuning than compensation. I know it can be controversial. I don't have R1 sample so I cannot say whether I do personally agree or not.
The fact is the thickness compensator in V6 and V7 is one of the most complicated features for inexperienced customers (difficult to understand and to use). :(
 
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