Can't assemble Hapstone R2 - bolt stuck Hapstone R2 Standard Knife Sharpener

Question

Bobby

Can't assemble Hapstone R2 - bolt stuck Hapstone R2 Standard Knife Sharpener

Gritomatic's "contact us" page says to fill out a form "below" but there is no form on the page, so I am asking here.

Thanks!

Bobby

Question ID: 6332010 Status: Open Oct 09, 2025 - 09:22 AM

Guided sharpening systems > Hapstone

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Bobby

Oct 09, 2025 - 09:25 AM

Somehow, the rest of my question was removed, along with my picture.

What I said was, I cannot slide the bolt up from the bottom even with the scew loosened all the way. Not sure if some oil would help or harm, so seeking expert advise!

Pic attached.

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By

⚙️Leading Edge

on 10/9/2025 9:53:04 AM | Like (1)

It sounds like you might have a seized screw or perhaps a little metal burr locking it in place. If it is not solvable, then contact Gritomatic by email support@gritomatic.com or telephone 256-4748662 (256-GRITOMA) if you can't reach them.

For now, maybe try see if you can remove the screw at the very bottom of the rod and then maybe tap the collar lightly to see if it breaks free. Hope it helps!

By

Bobby

on 10/9/2025 10:07:55 AM | Like (0)

Thanks for the advice. The adjustment screw is fine, I can easily loosen it to the point of removal. That top screw though...can't make it budge and I don't want to put the pole in a vise or anything for leverage because the tolerances are so tight I don't want to damage it.

By

⚙️Leading Edge

on 10/9/2025 10:31:40 AM | Like (0)

If you can remove the collar and thumb screw then everything is the way it's supposed to be. Remove the collar and simply install the vertical rod into your R2 base from the bottom of the base, sliding it into place and then installing the collar again on the opposite side of the base after the rod is in place.

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Bobby

on 10/9/2025 10:37:51 AM | Like (0)

I can remove the screw, not the collar. It won't budge.

By

⚙️Leading Edge

on 10/9/2025 11:18:47 AM | Like (0)

If you can't get it loose, then contact Gritomatic about replacing it. It's likely just a small burr or something but if you cannot get it loose then speak with them about it. Unfortunately this Gear Answers page is only a database, technical questions and usage discussion not directly monitored by Gritomatic.

By

Bobby

on 10/9/2025 11:21:05 AM | Like (0)

Yup, I tried them, and am waiting for a response...just thought maybe it was something I could sort out with help so I tried here.

Thanks LeadingEdge!

By

⚙️Leading Edge

on 10/9/2025 11:36:32 AM | Like (0)

No problem, hope you get it sorted soon.

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Zak

Jun 04, 2026 - 11:57 AM

I had this same issue with the V8 I just bought. Out of the box, the collar was flush with the washer at the bottom of the vertical rod, and was completely seized. I couldn't twist it loose or unscrew the endcap, but the locking screw on the collar was completely free.

I was able to un-seize the collar by rapping it firmly against the steel base of the sharpener. After a dozen good, sharp shocks, the collar has been knocked loose and can be moved freely, though it's still pretty tight (which is fine). Try to get your impacts square on a flat surface – while the collar is metal, it has a coating on it that will dent. Maybe some oils from the factory got a little gummy and glued it in place? 🤷‍♂️

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Hapstone R2 Standard Knife Sharpener

Hapstone R2 Knife Sharpener is the new knife sharpener from Hapstone, supplier of successful Hapstone R1. Hapstone R2, on par with Hapstone V8 and Hapstone M3, is part of the Hapstone Modular Platform, an innovative technology that lets customers configure and upgrade the sharpening system with no l... See More

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Hi Bobby, here is their direct email address for you : support@gritomatic.com

This answer database is only for product use and technical questions.
It sounds like you might have a seized screw or perhaps a little metal burr locking it in place. If it is not solvable, then contact Gritomatic by email support@gritomatic.com or telephone 256-4748662 (256-GRITOMA) if you can't reach them.

For now, maybe try see if you can remove the screw at the very bottom of the rod and then maybe tap the collar lightly to see if it breaks free. Hope it helps!
Thanks for the advice. The adjustment screw is fine, I can easily loosen it to the point of removal. That top screw though...can't make it budge and I don't want to put the pole in a vise or anything for leverage because the tolerances are so tight I don't want to damage it.
If you can remove the collar and thumb screw then everything is the way it's supposed to be. Remove the collar and simply install the vertical rod into your R2 base from the bottom of the base, sliding it into place and then installing the collar again on the opposite side of the base after the rod is in place.
If you can't get it loose, then contact Gritomatic about replacing it. It's likely just a small burr or something but if you cannot get it loose then speak with them about it. Unfortunately this Gear Answers page is only a database, technical questions and usage discussion not directly monitored by Gritomatic.
Yup, I tried them, and am waiting for a response...just thought maybe it was something I could sort out with help so I tried here.

Thanks LeadingEdge!

Can't assemble Hapstone R2 - bolt stuck Hapstone R2 Standard Knife Sharpener

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