NeatGuy

Sorry ... I was not implying that these hammers were at all suitable for blacksmithing. But they are fun to play with.

There is a dovetail in the flywheel that allows the length of the stroke to be controlled. Beside the short stroke the hammer head only weights about 8-10lbs.

brad

opps

The hammer in the last two pictures is made by Renato Muskovic. It is a hybrid of a Yoder and Pettingel sheet metal hammer a real joy to use.

brad

Bryce if you can not get the die out of the sow block any other way you could bring it by my shop and I could gouge it for you. then you would not have worry about the die key galling the sow block.

brad

I have one made by Scotchman for my iron worker. The accuracy and repeatability of the bend is not good. I would not recommend them.

brad

Sorry it took so long ... we rarely get non-rainy days in BC so I have been taking the opportunity to work on my shop. I hope this helps you.

brad

Rubberpress.pdf

I will type out a detailed explanation on how I make dies for rubber pressing tomorrow after work. I re-drew, from memory, a simple hydraulic press which I used, several years ago, to press large batch decorative copper light switch plates for some custom homes. This press could be made in a few hours and is reasonably cheap. If you are interested in building it I can finish dimensioning and annotating it by the end of this weekend.

brad

Assem1.PDF

Do you have access to a hydraulic press? if so you could rubber press the parts into the desired shape. Once the tooling is made it would be a matter of a few hours to complete the process. The time to the finished product would depend on how the flash is trimmed from the final part; if you cut them with a pair of aviation snipes it would take longer than if you make a trimming die . Short run dies for rubber pressing are relatively easy to produce.

brad

http://en.wikipedia.org/wiki/SNCF

I was very dissipointed they mention hammer heads .....just high speed trains ... who needs them; they are very awkward to forge with... hard on the anvil.

brad

Saw this on youtube http://www.youtube.com/watch?v=PXOTWPu1E4A&feature=related.

the adjustable anvil is a novel idea.

brad

I don;t have a scale but It weights about 8-10 lbs.

I looked for a website before but I guess I used the wrong keywords here is the MOB website http://www.moboutillage.com/index_us.htm

Frosty
The peen end is slightly radiused same as the other face but otherwise flat.

brad

I acquired this sledge head and was wondering if it had a specific purpose due to the narrower face on the one side. It is made by MOD in France. I was thinking of regrinding the narrow end and making a straight peen striking hammer.

http://www.box.com/s...ee09723f1718d11
http://www.box.com/s...8f9fbaa0e59b16f

brad

Here is an additional scan of this issue. I scanned some other issues from my collection that relate to blacksmithing.

http://www3.telus.net/public/benowak/SciAmer%20Sept%2021%201895%20-%20page%201.jpg
http://www3.telus.net/public/benowak/SciAmer%20Sept%2021%201895%20-%20page%202.jpg
http://www3.telus.net/public/benowak/SciAmer%20April%2011%201874.jpg
http://www3.telus.net/public/benowak/SciAmer%20Aug%2026%201868.jpg


brad

Check out the mother of all cross bows ... http://www.wattsunique.com/blog/

brad

I have an air curtain on my forge which blows a stream of air strait up the front of the forge. The air blows a lot of the heat up and away for the ends sticking out of the forge. While it does not cool as radically as this mister it is always running. Those misters are also great for heat straightening or heat bending beams, tubes etc.; no water all over the floor.

brad

I was thinking of do the same for a 50 lb little giant frame that I have so I am very keen on seening this. The anvil is hollow so how much room do you have to machine the new dovetails ?

brad

I am building a new fab table at work hope this helps.

brad

FabTable.PDF

Could these be formed by hydroforming ?

brad

I've got a big Trumpf nibbler,

I also have a Trumpf, a CN900. I had a Pulmax but I like the Trumpf more. Which model do you have ?

brad

I would contact Renato Muskovic in Surrey BC. he makes very high end sheet metal power hammers and could tell you the pros and cons of the process. PM me if you would like his contact information. http://www.faybutler.com/yoder.htm

Could these be spun? I believe there are people here that have expertise in this area. I have made bowls from 3/16 stainless, although larger,l with a CN900 stationary nibbler (like a Pulmax P9).

brad

Here is a steam hammer with a similar linkage. http://www.google.com/patents?id=zhpXAAAAEBAJ&zoom=4&dq=1526977&pg=PA1#v=onepage&q&f=false

Brad

You could probably use this tool to put a twist in light gauge tubing cold in minutes. Although it does not have the same umpf as a mechanical nibbler it could probably do many of the same operations.

brad

What are transformer laminations made from? They are very soft.

brad

I like the t-slots as well, I wonder how well they would hold up after prolonged periods of heavy hammering. Dovetails seem to be the tried and true method for holding dies.

brad