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10:24 pm
Just fiddling with mechanical hammer designs again. I took my "Rusty Compact" design and 1/2ed again, yielding a theoretically 50% smaller spring helve then the common Rusty style types.
[Image Can Not Be Found]
Utilizing the tire drive and all that like the compact. blue is tubing and solid steel, teal green is the pittman, red is the turnbuckle, green is the ram, purple is the spring leaf, gold is bronze or nylatron bearing surface/guide. The view on the right is a top down view. comments, jokes, improvements welcome.
The ram is solid 5" by 11" by 1 3/4" (which I happen to have) but it could be any dimension rectangle shaped solid. the hole is cut in the middle then milled/ground to the hourglass shape because in it's action the spring goes through the ram block at different angles. It is a loose connection to the spring. Here is an attempted 3D model
[Image Can Not Be Found]
You could just as easily build up the block from square bar or cut the hole out then weld in 2 round bars instead of the angle cuts.
3:21 am
I love on this forum, you know you are doing OK if you don't get any comments 😀
3:36 am
March 18, 2010
Offline
Quit talkin and start buildin! Looks like a reasonable concept. Hard to make a very "whippy" spring in that short of a length. If you do get it whippy enough the spring won't last very long, but maybe long enough. Just gotta try it and see.
“There are painters who transform the sun into a yellow spot,
but then there are others who, with the help of their art and their intelligence,
transform a yellow spot into the sun.” ~ Pablo Picasso ~
3:42 am
at the risk of soundin like a woubee, i don't have access to the welder and stuff to build em!
4:59 am
March 22, 2010
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What are you doing Sam? why dont you just hop on over to my shop and build it... Plane ticket cant cost that much... Of course once you get it built you'll probably have to leave it behind :giggle::giggle:
Whatever you are, be a good one.
Abraham Lincoln
5:06 am
Oh ho I don't think you'd be rid of me so easily once I got there :redface:. I'd love to make a trip out there, be nice to setup to meet (and mooch a couch) a few different guys out that way, do sort of a work for room and board type deal for a day or two here or there.
6:17 am
March 22, 2010
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Well I got a heated room, fridge, microwave and a shower in the shop.... What more could a guy want? oh yeah and I got a welder:happy:
Whatever you are, be a good one.
Abraham Lincoln
7:23 am
March 18, 2010
Offline
Don't tell him what happened to the last guy who came out to visit you!:bomb::bomb:
“There are painters who transform the sun into a yellow spot,
but then there are others who, with the help of their art and their intelligence,
transform a yellow spot into the sun.” ~ Pablo Picasso ~
4:15 pm
March 22, 2010
Offline
Well yeah there is that... the last guy who stayed did end up in federal prison for no apparent reason....
Whatever you are, be a good one.
Abraham Lincoln
5:22 pm
NWBA Member
September 25, 2010
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Sam, you don't drink Pepsi do you? :giggle:
Let us make a special effort to stop communicating with each other, so we can have some conversation.
Mark Twain
5:21 pm
NWBA Member
November 8, 2010
Offline
Sam- I went to Austria in '04 and photographed a home-made mechanical alot like your concept drawing. I'll dig up a photo tonite. There were actually two hammers on that trip that raised my eyebrows; the homemade spring helve and a cam actuated planisher that was used for finishing 'sense-work' tools (ie; sickles and sythes). I believe the ram in Bradley strap hammers resembles what you've got there, too. Might be worth it to look at one of those.
They only remember you when you SCREW UP~!!!
6:54 pm
May 13, 2010
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I had a request to demo at the OABA meeting this past weekend sprung on me when I got there. I made a pair of tongs on the hosts tire hammer that was built at one of the Clay Spencer workshops. I was quite impressed with the control and how hard it hit for the size. The hammer was pretty simple and I think you could make one fairly quickly in a well equipped shop.
Much as I like modifying plans or designing my own tools building from a good set of plans can eliminate a lot of head scratching and "engineering changes". I would recommend those plans to anyone for hobbiest use. I am not sure how well it would stand up to full time use but it sure beats drawing out by hand.
5:21 pm
NWBA Member
November 8, 2010
Offline
Cybo;6097 wrote: Sam- I went to Austria in '04 and photographed a home-made mechanical alot like your concept drawing. I'll dig up a photo tonite. There were actually two hammers on that trip that raised my eyebrows; the homemade spring helve and a cam actuated planisher that was used for finishing 'sense-work' tools (ie; sickles and sythes). I believe the ram in Bradley strap hammers resembles what you've got there, too. Might be worth it to look at one of those.
Here it is Sam, From the Sense-works in Himmelburg Austria. Didn't get to meet the propreitor since they are officially open only in summer.
They only remember you when you SCREW UP~!!!
7:51 pm
Cool! Thanks Cybo, that must have been some trip!
The guide style with the 2 "hands" holding either side of the ram I indeed took from the Bradley and similar hammers.
John, I agree completely, my fascination with hammer designs and my desire to build one stem just from curiosity, I have a little anyang 33 hammer I love and could not easily build something that works better than it. anyone looking to build a hammer the tire hammer is probably the best out there.
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