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Chockstone Forum - Gear Lust / Lost & Found

Rave About Your Rack Please do not post retail SPAM.

 Page 3 of 5. Messages 1 to 20 | 21 to 40 | 41 to 60 | 61 to 80 | 81 to 82
Author
Retrieved pro from Dog Rock - LittleHammer début.
rightarmbad
18-Sep-2015
4:07:30 PM
So I just watched your video and surprise surprise, you used two hands to set the device!
So is this really a single handed device?
Jayford4321
18-Sep-2015
6:35:10 PM
C'mon leftarmgood. Stop trolling and find some qld dude who gets one, use it, an make up your own mind after doing so.
PS, I think your physics lessons at school were a waste of teacher effort.

harold
18-Sep-2015
8:49:38 PM
Really?? What video were you watching? I only saw one hand being used in the video I watched. Looks like a great device. How much does it weigh?

harold
18-Sep-2015
9:02:56 PM
Oh, back on page 1 he says its 130g. I do have a very light $5 hammer I have used for seconding aid climbs etc. It does the job very well but you do need two hands. If this thing lets you climb clean on second and not get so pumped trying to extract gear that could be a big plus. There are a few flake cracks that really clamp down on your gear as the sun heats up the rock and need a solid tap to unseat. Stabbing and yanking a wire up and down can really damage the wire at the join too, as opposed to an accurate tap in just the right spot.
TimP
25-Sep-2015
6:23:24 PM
On 18/09/2015 rightarmbad wrote:
>I have a question for you Tim.
>How much energy can this thing impart?
>How does it compare to even a 3" backswing with a normal nut tool?
>
>What is it's total weight?
>If it is substantial, then it may simply be a lighter system to carry
>a very small hammer with you to hit a normal nut tool.
>
>I'm curious as to how good this thing can be.

I think it isn't the energy it's the peak of the impact force. A stab impact with the weight of the arm is softened by the palm of the hand as it backs up the tool. A swing of a nut tool (hammer-like) over 3" would give a reasonable peak force if you hit the target but the swinging end is only a few grams. There is a huge discussion of the physics of this over at Mountain Project:
http://www.mountainproject.com/v/spring-loaded-nut-tool-on-kickstarter/110979110

LittleHammer is 130g, the impact weight is over half of this and accelerates pretty fast when released. I had some engineer students offer to model the forces but haven heard back yet. It was trial and error for me, the second prototype weight didn't have enough grunt so I upped its mass.

One of our backers just pulled out of the limited "get LittleHammer rolling special" so there is one available: AU$70 with free postage world wide. Grab a good deal!
https://www.kickstarter.com/projec…/climbdesign/littlehammer
TimP
25-Sep-2015
6:35:12 PM
On 18/09/2015 MonkeyBoy wrote:
>So i think the question we ALL really want to know the answer to is.....
>
>Will there be a LittleHammer debut at the 2015 chockstone Aidfest in November
>?????

Yes MonkeyBoy LittleHammer will be there for everyone to try out, might have a few of the production units by then too.

Now I'm tossing up how public I should go with the next three prototypes of new gadgets that relate directly to aid climbing: it's a balance between IP and getting valuable feedback from the aidfest mob. Might also bring my new portaledge if I get it finished in time!

I try to get to Dog Rock on Mount Alexander for a short session most weekends and have been thinking of inviting climbers there to check LittleHammer out. Happy to meet anyone headed there this weekend sat arvo or sunday morning if they are headed up. Weather was perfect today.


TimP
25-Sep-2015
6:51:55 PM
On 18/09/2015 rightarmbad wrote:
>So the basis of my scepticism is this:
>
>If you use the stab method, you are limited to the amount you can push
>and especially the amount of pain you can tolerate with your hand.
>Now seeing as this sprung weight has to be opposed by your hand, it must
>also impart the same hurt or lack of power as stabbing with your hand.
>
>So in essence you have gained nothing as stabbing is single handed also.
>
>Now a small tap far exceeds the force imparted by a stab, and can also
>be done single handed if you clip the nut so it won't go flying when it
>comes out.
>
>So what is gained here apart from weight and complexity?
>I am as big of a gear whore as anybody, but please tell me how this is
>an improvement over existing tools.

I think the tap is quite good for peak force imparted to the nut rightarmbad but less accurate than resting the tool against the nut prior to impact, especially with your non-dominant hand.

You're right about the opposing force, there is recoil but the timing of this is dealt with in the design. On release the impact-weight accelerates forward and the body accelerates backward. The track is slightly longer than the spring so there is a point where the acceleration stops. The impact weight is still flying forward but the firm hand pressure holding the body against the nut overcomes the recoil and solidly connects to the nut just before impact. Doesn't hurt the palm at all and I'm a softie (one reason why I developed LittleHammer!)

Since we reached our funding goal halfway through the campaign I've made the production orders early and hope to have some media samples to send out for review soon.
TimP
25-Sep-2015
6:59:11 PM
On 18/09/2015 rightarmbad wrote:
>So I just watched your video and surprise surprise, you used two hands
>to set the device!
>So is this really a single handed device?

Just uploaded a new video of the loading as a primer for the backers getting one. Yep the last detail video wasn't that good (you can be thankful I got real filmmakers to do the campaign video!). It's on the campaign page and climbdesign.co, and shows close-up detail of the loading. Single handed is the easiest way to load it: the way the weight pulls back when LittleHammer is hooked helps to engage the trigger catch.

For those of a certain age you will remember the GUI revolution (graphic user interface — as opposed to command line), well LittleHammer is a bit like this… why struggle to get a nut out when you can "point and click"!
TimP
25-Sep-2015
7:01:12 PM
On 18/09/2015 harold wrote:
>Really?? What video were you watching? I only saw one hand being used in
>the video I watched. Looks like a great device. How much does it weigh?

130g, the heaviest and most expensive nut tool… it'd be a hard sell if it wasn't more effective by a order of magnitude!
TimP
25-Sep-2015
7:04:30 PM
On 18/09/2015 harold wrote:
>Oh, back on page 1 he says its 130g. I do have a very light $5 hammer
>I have used for seconding aid climbs etc. It does the job very well but
>you do need two hands. If this thing lets you climb clean on second and
>not get so pumped trying to extract gear that could be a big plus. There
>are a few flake cracks that really clamp down on your gear as the sun heats
>up the rock and need a solid tap to unseat. Stabbing and yanking a wire
>up and down can really damage the wire at the join too, as opposed to an
>accurate tap in just the right spot.

I think climbing clean as a second really allows you to test yourself at the grade, not hanging on the rope to sort jams out. One advantage for the lead climber is you can really seat a nut without fear of repercussions from your second!

One week to go on the campaign. This will be the last chance to get one for a while till we sort out the Kickstarter batch production and delivery. If we partner with a bigger company it will take some time till LittleHammer is readily available.

phillipivan
25-Sep-2015
8:11:10 PM
Hey Tim, not in a position to buy one, however I think building and inventing stuff is intrinsically cool. So hi five! Keep it up, I'm curious to see what else you come up with in the future.

best, pi.
TimP
6-Oct-2015
9:04:44 AM
On 25/09/2015 phillipivan wrote:
>Hey Tim, not in a position to buy one, however I think building and inventing
>stuff is intrinsically cool. So hi five! Keep it up, I'm curious to see
>what else you come up with in the future.
>
>best, pi.

Building and inventing is cool, cheers pi, I recon climbers do this all the time in devising pro and anchors. Cool it may be but for all my past ideas and projects LittleHammer is the closest to success I've come. If it takes off I might even get to retire my rigid stem cams!

Got some new aid gear prototypes I'll bring to the BAW if you're there.

Finished the Kickstarter campaign with 159% funding and over 21,900 views of the video, plus heaps of other forum and social media activity, so I'm happy the word got out. Once I get the first of the production batch I'll be sending LittleHammers out for review which will take it to the next level.

After a short break I'm moving on with the production, it's a week or so before the funding comes through but I can keep things ticking over. I learn't a lot about springs yesterday as the stainless steel samples I got weren't up to the task. Head still sore from working with newton/millimetres… I've ordered samples of something with more grunt, despite my calculations it'll be trial and error to prove the performance in this application.

Made a new page on climbdesign.co for LittleHammer where all the news will go: http://climbdesign.co/littlehammer/

IdratherbeclimbingM9
6-Oct-2015
9:28:06 AM
Good one TimP!

>I might even get to retire my rigid stem cams!

Why? What is wrong with them? Heh, heh, heh.

>Got some new aid gear prototypes I'll bring to the BAW if you're there.

PI will be there, ... who else is going to pay for our campsites?
... Besides, he is half my age so is being groomed to continue the Buffalo Aid Weekends if I ever drop off the perch err, etts.
;-)

Looking forward to seeing your other aid 'inventions', as necessity needs more children!
Having said that, I think you might need to compare notes with Guidebook Authors* as to the $$'s to be made in niche markets, and a BAW is about as niche as it gets...
;-)

(* I heard a rumour that simey still uses rigid stem friends, especially when climbing with visiting authors dealing with their fear, so there is obviously a $ to be made... heh, heh, heh.)
TimP
5-Nov-2015
1:00:12 PM
If you're in Bendigo this afternoon drop by the Capitol Theatre — I've got a display there for LittleHammer in the Bendigo Inventor Awards. I've hand finished some of the first production run to show. LittleHammer is also being considered for the Emergency Services prize.

ambyeok
6-Nov-2015
12:51:32 PM
Well done on a neat little invention. However, I wonder if what we rather really need is people placing gear in such a way that they don't need brute force to get it out, damage to rock, etc. What happens to rock if they 'miss'? My suggestion is that you add a 'grappling hook' mode so that you can fire off draws up to high clips... one device that does both nut tool and stick clip?... nice.
TimP
8-Nov-2015
2:54:26 PM
On 6/11/2015 ambyeok wrote:
>Well done on a neat little invention. However, I wonder if what we rather
>really need is people placing gear in such a way that they don't need brute
>force to get it out, damage to rock, etc. What happens to rock if they
>'miss'? My suggestion is that you add a 'grappling hook' mode so that you
>can fire off draws up to high clips... one device that does both nut tool
>and stick clip?... nice.

I like the "clip launcher" idea, could be taking on sport climbs like spider man!

I reckon LittleHammer does less damage, I find with a passive nut tool I miss-hit, especially with my left hand, and hack the rock.

The ease of getting pro out means you can set your placements well - I've been surprised what placements come out when aid climbing, stuff I thought was bomber until bounce tested.

I won the Bendigo Inventor Award with LittleHammer!


MonkeyBoy
8-Nov-2015
6:32:05 PM
Awesome Tim. Good work. Can't wait to get my hands on one.

Duang Daunk
8-Nov-2015
6:46:07 PM
Yeh good one TimP bro.
I'm resisting signing up for the Aidfest to get mine earlier and am happy to wait for the postman to deliver it.

ambyeok
9-Nov-2015
12:48:37 PM
On 8/11/2015 TimP wrote:
>I like the "clip launcher" idea, could be taking on sport climbs like
>spider man!

A couple of little hammers gaffa taped to each foot has gotta make those jump starts easier right? Congrats on the award.

phillipivan
9-Nov-2015
1:06:44 PM
Onya Tim!

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