Setting Grippers With 20mm Block

[IROC-Z]

I was just wondering if anybody could give me some history on using the 20mm block to set grippers. Where did this practice originate? Is this what most people would consider a parallel set? Is this practice used in quite a few grip contests or is it unique to the WSH series?

[IROC-Z]

I was just wondering if anybody could give me some history on using the 20mm block to set grippers. Where did this practice originate? Is this what most people would consider a parallel set? Is this practice used in quite a few grip contests or is it unique to the WSH series?

Nobody has any information on this? I'm guessing it originated in the UK, but I'm just curious if it's been used at other grip contests throughout the world.

I think it's a great way to train. Last night I cut some blocks out of some scrap chunks of plastic I had laying around. I made them 20, 25, 30, 35, 40, 45, and 50mm. The 20mm looks to be around a parallel set, and the 50mm is a little under a CCS. This would be an excellent way to train for a #3 CCS certification. Is anybody else out there currently training for a #3 certification in this manner?

[mightyjoe]

I was just wondering if anybody could give me some history on using the 20mm block to set grippers. Where did this practice originate? Is this what most people would consider a parallel set? Is this practice used in quite a few grip contests or is it unique to the WSH series?

Nobody has any information on this? I'm guessing it originated in the UK, but I'm just curious if it's been used at other grip contests throughout the world.

I think it's a great way to train. Last night I cut some blocks out of some scrap chunks of plastic I had laying around. I made them 20, 25, 30, 35, 40, 45, and 50mm. The 20mm looks to be around a parallel set, and the 50mm is a little under a CCS. This would be an excellent way to train for a #3 CCS certification. Is anybody else out there currently training for a #3 certification in this manner?

I believe it origianted with Nathan Holle from the UK.

He explained his training methods in the book from IM on CoC Grippers.

I don't know of it's origin any further back than this. I could be wrong.

[IROC-Z]

I believe it origianted with Nathan Holle from the UK.

He explained his training methods in the book from IM on CoC Grippers.

I don't know of it's origin any further back than this. I could be wrong.

Thanks for the information, Joe. I appreciate it!

I guess I'll have to pick up that book from IM.

[mbcx6pmw]

I think David Horne came up with the 20mm block set for contest purposes, just to make it easier to judge than trying to eyeball a parallel set. It has been used in most of the UK contests I've attended. It does slightly reduce what you can close, as it takes some of the momentum out of it.

As well as training from progressively wider sets, something I tried a while back was to crush a gripper against progressively thinner blocks.

[mobsterone]

I was just wondering if anybody could give me some history on using the 20mm block to set grippers. Where did this practice originate? Is this what most people would consider a parallel set? Is this practice used in quite a few grip contests or is it unique to the WSH series?

Nobody has any information on this? I'm guessing it originated in the UK, but I'm just curious if it's been used at other grip contests throughout the world.

I think it's a great way to train. Last night I cut some blocks out of some scrap chunks of plastic I had laying around. I made them 20, 25, 30, 35, 40, 45, and 50mm. The 20mm looks to be around a parallel set, and the 50mm is a little under a CCS. This would be an excellent way to train for a #3 CCS certification. Is anybody else out there currently training for a #3 certification in this manner?

I believe it origianted with Nathan Holle from the UK.

He explained his training methods in the book from IM on CoC Grippers.

I don't know of it's origin any further back than this. I could be wrong.

Not entirely right. Nathan talked about using his thigh etc to set the gripper deep. This was, unless I'm also mistaken, judged by eye (as mine are). Noob's response is correct - it was an idea of David Horne's done so one didn't need to guess in competition and also made it fair as some set deeper and others wider.

[IROC-Z]

I think David Horne came up with the 20mm block set for contest purposes, just to make it easier to judge than trying to eyeball a parallel set. It has been used in most of the UK contests I've attended. It does slightly reduce what you can close, as it takes some of the momentum out of it.

As well as training from progressively wider sets, something I tried a while back was to crush a gripper against progressively thinner blocks.

Not entirely right. Nathan talked about using his thigh etc to set the gripper deep. This was, unless I'm also mistaken, judged by eye (as mine are). Noob's response is correct - it was an idea of David Horne's done so one didn't need to guess in competition and also made it fair as some set deeper and others wider.

Thanks for the additional information. I enjoy learning about the history behind different training methods.

The 20mm block seems to me like it would be the best way to judge grippers in a contest setting. Definitely takes away all of the guess work.

[Geralt]

I think David Horne came up with the 20mm block set for contest purposes, just to make it easier to judge than trying to eyeball a parallel set. It has been used in most of the UK contests I've attended. It does slightly reduce what you can close, as it takes some of the momentum out of it.

As well as training from progressively wider sets, something I tried a while back was to crush a gripper against progressively thinner blocks.

Not entirely right. Nathan talked about using his thigh etc to set the gripper deep. This was, unless I'm also mistaken, judged by eye (as mine are). Noob's response is correct - it was an idea of David Horne's done so one didn't need to guess in competition and also made it fair as some set deeper and others wider.

Thanks for the additional information. I enjoy learning about the history behind different training methods.

The 20mm block seems to me like it would be the best way to judge grippers in a contest setting. Definitely takes away all of the guess work.

So why isn't it used in the mash monster cert? Anyone? Seems to make judgement a bit easier?

[Cannon]

So why isn't it used in the mash monster cert? Anyone? Seems to make judgement a bit easier?

It's just not how the cert was organized. The requirement for a clear video makes judging pretty easy (most of the time). It's really not that hard to get a clearly-wider-than-parallel set on camera, especially when we can comb through the video frame by frame to check.

I actually believe a block would muddy things for the MM certs.

[Geralt]

So why isn't it used in the mash monster cert? Anyone? Seems to make judgement a bit easier?

It's just not how the cert was organized. The requirement for a clear video makes judging pretty easy (most of the time). It's really not that hard to get a clearly-wider-than-parallel set on camera, especially when we can comb through the video frame by frame to check.

I actually believe a block would muddy things for the MM certs.

Ok, thnx. Just a thought.

[Sam Radford]

Is there a tolerance on what the 20mm block must be? Just looking at getting a block cut that is 20x20mm but the callipers say it is 19.97mm . . .

[Jose Cabrera]

Get one from David Horne. I have one, its also whats used in comps now.

[Sam Radford]

Get one from David Horne. I have one, its also whats used in comps now.

Thanks Jose, just checked out his website and found it!

Where I work have their own fabrication area so can get an offcut of some 20x20 but just wondered if there was a tolerance.

[Jose Cabrera]

I understand, but i think itll just keep things clear if you use his block for cert purposes.

[Autolupus]

Is there a tolerance on what the 20mm block must be? Just looking at getting a block cut that is 20x20mm but the callipers say it is 19.97mm . . .

Get one from David Horne. I have one, its also whats used in comps now.

Thanks Jose, just checked out his website and found it!

Where I work have their own fabrication area so can get an offcut of some 20x20 but just wondered if there was a tolerance.

I understand, but i think itll just keep things clear if you use his block for cert purposes.

Firstly your 19.97mm will be fine, although you will be required to measure it, I think for a setting block a standard rule measurement is adequate, others will want a digital caliper measurement, this for a setting block is overboard!

I understand your request about a tolerance, for a setting block I would suggest as it is an integer figure that ±1mm should be ok but some will argue otherwise.

That said I see no reason to go to any tighter tolerance than ±0.5mm.

The block you will get from David or anyone else is not tied to machining standard tolerances as it is stock material and to use that as the de facto standard is delusionary and unhelpful.