NeatGuy

oops did I say break ??? well I meant brake ... sorry. brad

I just acquired a 25lb Canadian Giant power hammer and would like to add a break to the fly wheel. So if you have a break design I would like to see it. brad

There are many simple method of making scrolls. I will attempt to outline on that I use so i hope I can make it relatively clear. Refer to attached drawing. This method uses the golden ratio to make a scroll. I like it because It is fairly easy to create scrolls of a desired size. 1) Start by creating a a square 1 unit x 1 unit (any unit). draw an arc from corner to corner with a radius of one. 2 )Repeat with another square and arc 1 unit x 1 unit rotating 90 degrees to the previous (clockwise in the drawing). 3) again rotate 90 degrees clockwise this time draw a square and arc 2 unit x 2 unit. 4) repeat this process using with the radiuses 1,1,2,3,5,8,13, 21 ... ((n-1) + n). of course you do not have to use the squares but it helps to visualize. Hope that was clear enough and helps.Scroll.pdf brad

If you just want to copy it use an Opaque projector to project on to a sheet of steel or paper, scale it accordingly and trace it. I also use Solidworks and Autocad. brad

I thought Boeing Surplus in Kent was no longer open ??? brad

True ... but before I retro fitted it; it was a treadle hammer brad

It is a type of drop hammer that uses a board to raise the hammer before it is dropped.Drop Hammer The advantage, at least to me as I tend to do a lot of chasing, not having to stand on on leg for hours driving the hammer down.

The springs run down the back of the frame there are two pulleys which guide the cable from the springs attached to the toggle arm. The power, via a motor, is supplied to the rear roller when the cam is lifted it presses the board to the rotating rear cylinder and pulls the board down. The cam is upside down sort of because I switch to use a remote foot peddle that has a cable when the foot peddle is pressed the cable pushes up. I will add some additional details and repost the drawing brad

I have been working on this design for some time and although it is still a work in progress I would like to hear any comments or ideas regarding the design. The attached drawing is not complete as I still have some detail to work out in addition there are some parts that have been omitted for clarity sake. The hammer works like a board drop hammer except in reverse. When the treadle is depressed a cam presses the board against a rotating cylinder See "DETAIL A" in drawing) . Friction on the board will over come the force of the springs and the hammer will move. My tests show that this system is capable of the gentlest blows to fairly hard blows. Board Treadle Hammer .PDF brad

I tried similar system for a pneumatic treadle hammer. A rotary optical encoder in the foot peddle sensed the velocity of the foot peddle and a plc controlled a pneumatic proportional valve which controlled the blow of the hammer. The plc converted the input from the encoder to a voltage (0-10v for my proportional valve). This system did not work as I wanted and I have since abandoned this idea. brad

I need to locate info for 175kg Vulkan DRP forging hammer; specificaly the dimensions and strength, etc for the spring in the valve. If anyone has such a hammer and could pull the valve out and measure the spring it would be very kind. brad

Try inconel pins and washers. Weld the pin to the body of the forge, press the wool over it, slip the washer over the wool and give it a twist. I have used them for years and found them to work very well. http://www.thomas-welding.com/goujon/refractory_anchors.htm brad

You could add an adjustable tool holder and I would guess it could be used simmilar to a Pullmax machine. brad

Renato Muskovic produces very nice 375lb and 600+ anvil at a competative price. email rmuskovic@hotmail.com for more info.

I bought an 850lb saw makers anvil from a saw maker and his hammers were about the same size but had more of a crowned face. brad

I remove one ear plug when welding open roots on pipe and plate so that I can hear the sound of the arc penetrating correctly. One never knows when someone will fire up a grinder. brad

I use a welders soap stone. I works for solder and brazing. Just draw the boundry with the soapstone and solder will not cross. brad

Wouldn't an acme screw lock tight at the bottom of the stroke?. My flypress has 3 threads on the screw and I have always assumed that this feature gives the "bounce" at the end of the stroke preventing it from locking. brad

A friend of mine makes files. He made the file makers hammer as well. He can make a double cut file in about 10 min. I have tried it and, although I am not great at it I could make a useable file. His files are quite good at least I think so. I will see if can get him to post a video or the like. brad

corn is way better better tasting ... but it is hard to beat the crunchyness of coal. brad

I now have a fly press but I used to use one to make collars. brad

what kind of joint were you tring to weld, butt, lap, or edge?. With a practice and the right tip and settings you could torch weld the sheets together. brad

Bryce if you want to get a better handle on your welding enrole in a level c welding class at Kwantlen college. Kwantlen has good instructors and a state of the art teaching facility in addtion it is also close to you. The course is 28 weeks, in the end you will end up with a proper understanding of what you are doing and all position CWB certifications for SMAW, GMAW, MC/FCAW. brad

if you are working with inside dimensions then simply add up your segment lengths. If you are working with outside dimensions then you can subtract a thickness for each outside bend or simply convert all your dimensions to inside dimensions. there is also a formula : Ba = A/360 X 2pi(R+kt) where Ba = bend allowance (in) subtract off total length for each bend. A = bend anglen (deg) R = bend radius (in) t = metal thickness (in) k = constant neutral axis location (a value of .5 places this in the centre of the material) brad

A friend of mine, who also happens to be a renouned metalshapper, manufactures very high end sheet metal hammers, shrinking machines, planishing hammers, and english wheels. For the english wheel he uses cast 4340 for the both of the wheels. Renato also makes very high quality anvils and other blacksmithing tools An example of a piece of his equipment: Fay Butler Metal Fabrication: Power Hammer Renato has a very nice radius cutter fore sale if anyone is interest in making their own wheels. brad