Re: [flasah] Mauls a BAD DESIGN for stamping [2 Attachments]

 

[Attachment(s) from GB included below]

Jerome,
Why did you only address one aspect of my critique of the maul designs in question?

Tell me why you would use a striking instrument which is , like Windy said, basically trying to hit your stamps with a pipe ? 

Now to your description of how a striking instrument is supposed to be used...hanging off the end of your arm supported in only one direction by your wrist....  just wrong.

 A prescription for tunnel carpal syndrome if ever I saw one.  That also means that all the VIBRATION of the hits... which I was saving for my annotated presentation on striking instruments to cover... goes right to the wrist .

But for those who want to think about it in the meantime ... you need to have something to counter balance the weight doing the work.... a place for the vibration to go to be dissipated into the air.... not into your elbow or shoulder. This also changes the hold and the motion associated with the stamping so as to avoid the ' hammer' hold using a side motion of the wrist.

I am attaching a couple of pictures from the Kelly Tool company instruction booklet (about 1978 ) which has a pretty good picture of how your wrist action should be to  minimize effort and injury over the long haul. Several other people have had and shown rectangular stamping sticks over the years in places like ' The Leather Craftsman' magazine .... but Tandy never offered a flat bottomed square handled mallet ..... so there was not much way for it to catch on no matter how many benefits it has.

 I believe the Kelly Tool company became the Midas Tool Company which is what The Leather Factory used to compete with Craftool until they bought Tandy and Craftool about 2000. 

Also , Jerome, you sounded like you were using your maul just as a  gravity determined impact tool... which would mean you would have to change the height from which you dropped it as the only way to vary the impact... not only would that be silly.. but VERY SLOW... when using a proper striking stick you can work much faster than gravity will allow you...

Ok, Windy, here is the type of motion for proper leather stamping.. ( in the attachments) it allows your entire arm to be held two inches lower than with a common hammer type mallet,  puts the actual hitting surface plane extension on your finger tips , has the ability to have weights installed to customize to the crafter's needs, AND has a wide and long sweet spot. and has the ability to dampen the constant pounding into the air with the other end out in the air... as compared to the vibration traveling right through your wrist and up your arm.

  It is all physics and ergonomics...

Gregory B. Moody
Daddysrulesleathercraft at Yahoo Groups
DRules999 at Youtube soon.


--- On Sat, 9/5/09, Jerome <grayhawk@grayhawkleather.com> wrote:

From: Jerome <grayhawk@grayhawkleather.com>
Subject: Re: [flasah] Mauls a BAD DESIGN for stamping
To: flasah@yahoogroups.com
Date: Saturday, September 5, 2009, 6:23 AM

 

Sorry to tell you that if you are using the maul the way it was meant to
be use there will be no movement of the elbow.

When using a maul you lift the maul with a twist of the wrist and let it
fall. The weight of the maul falling does the work instead of trying to
drive the mallet though the tool like driving a nail.

The benefit is less physical effort for the same amount of work.

GB wrote:
>
>
> Mauls are a bad design in terms of having control over hitting your
> stamping tools. They have an incredibly narrow sweet spot. A design
> aspect for which there is no corresponding offset in advantage EXCEPT
> that it can be made on a lathe.
>
> A sweet spot is the area on a striking instrument where a slight
> misapplication of the hit does not affect the outcome enough to matter.
>
> The last two persons who took beautiful wood and their wood lathe
> changed the design ( made the striking surface on a tangent from the
> longitudinal axis ) of the mauls to make them even worse than the ones
> in the Tandy catalog for use on leather stamping tools.
>
> They have made mauls which require the entire arm from the shoulder
> down to move in order to produce a strike 90 degrees from the long
> axis of the stamping tool...( and that is in addition to the long and
> NARROW sweet spot.
>
> This is the type of head design used by wood workers ( except many are
> smart enough to use a square head ) and stone masons... where harder
> blows and the use of the entire arm is appropriate AND needed.
>
> This is not what you want in a stamping stick...
>
> I have been gathering examples and composing a larger answer to this
> situation for a while now... since that first maul a couple of months
> ago... it was beautiful wood and craftsmanship. .. but just not what a
> leatherworker needs for stamping leather.
>
> This same discussion has a larger sports example... the difference
> between Baseball and Cricket.... the first is EXCITING because you are
> using a round ball and a round bat...
> the second uses a round ball and a flat bat...
>
> But you DO NOT WANT exciting when you are striking your stamping
> tools... you want control and ease of use with regards to the
> ergonomics .... this means that you should only have to use your wrist
> ....not your entire arm as with this maul design to get a square
> hit... and not even your entire forearm as with the traditional
> mallet...
>
> Most of you know I do not complain about things which I can not offer
> a better answer for... and this is another example of that..but I am
> sorry I did not speak up when this first came up...and I have sent
> emails to some who I know got these designs apologizing for not
> addressing it as soon as I should have.
>
> My father used the same stamping stick for about 50 years.... until it
> just fell apart and I made him a new one.. also out of Oak... he had
> made the first one from some tool handle... with lead weight in the
> end....
>
> I wrote about it about 1991 in the Leather Craftsman Journal with the
> two Cardinals on the front.... I don't know which issue....
>
> It is ALL about sweet spot and being kind to your body. You may
> make millions of taps on your stamping tools over a lifetime and
> anything you can to do ease the strain of the repetitive motion should
> be considered before the damage is done...
>
> Or the other side is having regular 'exciting' stamping experiences
> but with mishits showing up on your work....
>
> Golf club designers spend millions of dollars trying to widen the
> sweet spot on their clubs..
> How do they do that ? By placing weights as close to the backside of
> the striking head AND spread out as far as possible on the club.
>
> This is the same principle incorporated in my father's stamping stick
> design... and I will gather up the pictures of these various things
> and post them.
>
> One interesting fact that some of you may have picked up on... is the
> answer Polar Bear gave to someone in sorta discussing his mauls... he
> said something like ' an acquired taste'..... so I know he also knows
> there was a basic problem extant.
> Everyone who has a chance to try a maul of any design free should do
> that.. just as with the Rubyat blades... which I will address as soon
> as I get the time and the irrational bashing has slowed down.
>
> But this weekend I am pruning pine trees.
>
> Gregory B. Moody
> Daddysrulesleatherc raft at Yahoo Groups
> DRules999 on youtube soon...
>
>
> --- On *Fri, 9/4/09, jacksons002 /<jacksons002@ hawaii.rr. com>/* wrote:
>
>
> From: jacksons002 <jacksons002@ hawaii.rr. com>
> Subject: [flasah] Al Stohlman Mauls as carried by Tandy
> To: flasah@yahoogroups. com
> Date: Friday, September 4, 2009, 9:02 PM
>
>
>
> Hi All . . .
>
> There has been much written about MAULS. I don't remember reading
> whether or not the Al Stohlman mauls were recommended by any of
> our members. What say you?
>
> Stan
>
>
>
> ------------ --------- --------- --------- --------- --------- -
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.409 / Virus Database: 270.13.77/2346 - Release Date: 09/04/09 17:51:00
>
>

--
Jerome Warburton
aka Grayhawk

http://www.grayhawk leather.com

http://www.sclcg. org

http://groups. yahoo.com/ group/flasah


__._,_.___

Attachment(s) from GB

2 of 2 Photo(s)

Free Leather Artisans Sharing a Hobby is the public list supported by the membership of the South Central Leather crafters Guild.   It is just one of the ways we will support leather crafters and promote Leather craft.  Membership in the guild is open to anyone interested in Leathercraft and Guild info can be found through the links section of this lists web site.
Recent Activity
Visit Your Group
Share Photos

Put your favorite

photos and

more online.

Y! Groups blog

The place to go

to stay informed

on Groups news!

Get in Shape

on Yahoo! Groups

Find a buddy

and lose weight.

.

__,_._,___

0 comments: