pkrankow Posted August 20, 2012 Share Posted August 20, 2012 http://www.google.com/url?sa=t&rct=j&q=harris%20and%20heers%20blacksmithing%20pdf&source=web&cd=1&cad=rja&ved=0CEQQFjAA&url=http%3A%2F%2Fwww.webpal.org%2FSAFE%2Faaarecovery%2F6_pioneer_methods%2FBasic_Blacksmithing.pdf&ei=0qcyUMbdCMu50AG9woDQAQ&usg=AFQjCNEH7j31lJg0z18t7wKkaQaXqMUmgA Rich is right, pick an idea and run with it. Phil Quote Link to comment Share on other sites More sharing options...
pkrankow Posted August 20, 2012 Share Posted August 20, 2012 I just assembled one that I painted canvass last night. I might be completely uncoordinated, or I made part of it the wrong size because it does not reliably fill, but blows fair when it does fill. Maybe a bag bellows is not a good option. I was only able to get it to fill every few strokes. Maybe I need another coat of paint as it is still quite limp and shows light through in a few areas. This took me about an hour to assemble. I probably could have done the handles better, they are just poked through the canvass and tied. pic 1 Here are the parts, a sleeve of canvass that I painted. It has hems in both ends. This is a piece of 1 1/4 inch iron water pipe I had laying around (yes galvanized so it needs stripped with acid before putting in a fire), some rope and some sticks. This bag is about 15 inches wide when laid flat, the circumference is 30 inches. Diameter is meaningless because it is a sack. It is about 40 inches long. pic 2 install the sticks in the hem. The two sticks are less than the circumference so the top can open. pic 3 Tie handles for your fingers and thumb to open and close the bag. This is the only valve. I just made a hole in the canvass to tie around the stick, but something neater could be done. pic4 tie securely to the pipe. pic 5 finished. This was really easy to whip up, but it does not blow very well. I think it needs adjustment, or something like a hoop or a board at the bottom to hold the bottom open. In all the videos I see there are two of them being used in a small forge, usually on the ground. The reason I was trying to make a bag bellows was to try this paint product (spray polyurethane truck bed liner) on the canvass to see if it would become a flexible material that was airtight for making a larger bellows, not because I need bag bellows. The canvass is cotton drop cloth and I sewed it on my wife's sewing machine a few says ago. I think I need another coat of paint at the very least. Phil Quote Link to comment Share on other sites More sharing options...
VaughnT Posted August 21, 2012 Share Posted August 21, 2012 Azur, that pipe bellows you show is exactly what I was looking for, except that the piston HAS to have a hole in it so that when you draw the piston back it will allow air through and preventing the hot air/sparks from the forge from being drawn into the bellows. About halfway down the page on this link, you'll see a poorly drawn example of a box bellows and how it works. You absolutely must have the air holes and leather/canvas flaps so that you are guiding the air in the right direction. http://www.greenstone.org/greenstone3/nzdl;jsessionid=88973B8925E9B2A847CFA24BBA35AA32?a=d&d=HASHa2dbbba21520ca6c67f334.9.np&c=hdl&sib=1&dt=&ec=&et=&p.a=b&p.s=ClassifierBrowse&p.sa= The diagram you provided would work if you modify it with a hole and flap valve in the right positions. The gasket around the piston head can be nothing more than a scrap of carpet stapled into place, and it doesn't need to be a super tight fit. If wood-working isn't something that you're very good at, definitely consider using a section of water pipe or sewer pipe that you can cut to length. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 21, 2012 Author Share Posted August 21, 2012 I think i will have a patience and find some material to make project works good:BEther to not rush.Because i have a lots of plans in my had .And i"m hoping that once of them will work. Quote Link to comment Share on other sites More sharing options...
395743 Posted August 21, 2012 Share Posted August 21, 2012 I made a bellows out of sewer pipe similar to the one you were suggesting. here are some pictures. it is kind of hard to use but if you have an extra person to use it I think it would provide enough air. just remember to blow on the fire and step away to draw air. Here are some pics. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 21, 2012 Author Share Posted August 21, 2012 i found something nice to make IT is not too dificult http://www.cd3wd.com...ths_bellows.pdf do somebody try to use this bellows it seems to me that this below can have a sence I think this draws have logic http://www.cd3wd.com.../en/bsforge.htm ok it look like thismijeh.pdf Quote Link to comment Share on other sites More sharing options...
395743 Posted August 21, 2012 Share Posted August 21, 2012 #!oZZ3QQcurrentZZhttp%3A%2F%2Fs1058.photobucket.com%2Falbums%2Ft408%2Fjojsmith%2F%3Faction%3Dview%26current%3DIMG_20120821_135359.jpg#!oZZ4QQcurrentZZhttp%3A%2F%2Fs1058.photobucket.com%2Falbums%2Ft408%2Fjojsmith%2F%3Faction%3Dview%26current%3DIMG_20120821_135025.jpg If you have any questions feel free to ask. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 21, 2012 Author Share Posted August 21, 2012 you must kiding me that this thing work i thik it is small:D Is it a plastic do it melt if you using no offence funnel go to forge Quote Link to comment Share on other sites More sharing options...
395743 Posted August 21, 2012 Share Posted August 21, 2012 By the way this design is rather heat sensative as it is nearly all plastic. Yes, it is rather small. and I'm not really reccomending it. just showing you that it can work... There are MUCH better options though. It was just one of my earlier attempts at making a blower. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 21, 2012 Author Share Posted August 21, 2012 what you think about this bellow http://www.iforgeiro...attach_id=45841 can this thing work http://www.cd3wd.com...ths_bellows.pdf people doy you thinll this bellow can work Quote Link to comment Share on other sites More sharing options...
pkrankow Posted August 22, 2012 Share Posted August 22, 2012 Yes, I was preparing to build that exact one before I found my hand crank blower. Phil Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 23, 2012 Author Share Posted August 23, 2012 my progres with bellows it"s half done only i need atach iner tube of cars and make frame which is easy this was the hard job Quote Link to comment Share on other sites More sharing options...
pkrankow Posted August 23, 2012 Share Posted August 23, 2012 With a little more care that type of saw can make much neater cuts. You can also take the blade out, pass it through the holes, and cut neater openings. The openings do not need to be round, but neat is helpful. Ragged edges will make it harder for the valves to close properly. Phil Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 23, 2012 Author Share Posted August 23, 2012 i will try with rasp because i hammered this and its have flap inside i cant pass trough "when i wide the hole will air escape Quote Link to comment Share on other sites More sharing options...
VaughnT Posted August 23, 2012 Share Posted August 23, 2012 That's a rather ingenious design! I can see it with brass tacks and maybe brass nailing strips for that Steampunk look. The holes you have cut should be as neat as possible. You want to have the edges smooth, and don't worry about making the holes too big. The one key problem I see is that the design you showed has one long strip of rubber to cover all three of the holes. This is a recipe for disaster because the flap can get twisted and you have no way to fix it without taking the bellows apart. I would strongly suggest you use a separate flap for each hole so the rubber tubing is reasonably stiff and can't get twisted up. Also, it will help if you hold all of your sheets of plywood together and form them at the same time as one big piece. Trying to get four individual pieces shaped and matching one another is a lot of trouble if you don't have the best equipment for the job. Holding the four or five sheets together with some clamps will help a lot. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 24, 2012 Author Share Posted August 24, 2012 i put leather instead of rubber guys can i use slim (thin) peace of wood instead sheet metal to atach iner tube on plywood Quote Link to comment Share on other sites More sharing options...
pkrankow Posted August 24, 2012 Share Posted August 24, 2012 guys can i use slim (thin) peace of wood instead sheet metal to atach iner tube on plywood Maybe. The thin sheet metal is a lot better because it won't split out like thin wood can. You may be able to cut up some cans to get the sheet metal. Even a bean can, cut in a spiral, can offer a long strip of metal. It would probably take several cans to get enough strip to go all the way around all 4 boards. Larger cans, like from coffee or paint, would work better. To mark a spiral on a round can easily mark the sides of the can up one side then wrap with tape carefully in a spiral. Cur along the edge of the tape. If you don't have tape, use string then trace the string carefully. Phil Quote Link to comment Share on other sites More sharing options...
VaughnT Posted August 24, 2012 Share Posted August 24, 2012 The metal strip is there to distribute the pressure that the nails apply, and prevent the nail heads from tearing the tube material. Thin would will work, as will thin plastic, but the wood will require pre-drilling the holes so you don't split the wood. I would also recommend increasing the number of nails used, tightening their spacing, should you go with the wood option. Or, use a section of garden hose cut to length..... Lots of options..... Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 25, 2012 Author Share Posted August 25, 2012 i have metal sheet but i dont have sissors for metal i have hack saw but i think its hard to cut metal preciesely do you have difrent way instead use hacksaw or sissors Quote Link to comment Share on other sites More sharing options...
pkrankow Posted August 25, 2012 Share Posted August 25, 2012 A heavy knife can be carefully used to cut thin sheet metal. Carefully being a key word, getting hurt while building a tool is no good. You can use a wood mallet to drive into the sheet backed by a stump. A chisel can also be used in this manner. If you have a vise sawing along the jaw with the hacksaw can quickly cut sheet metal neatly. Similarly using a couple clamps to fasten a piece of metal stock to act as a vise, or even a couple stout boards, could also work well as a vise and cutting guide. Vaughn suggested pre-drilling thin wood for nails, or using some rubber hose. Rope, or a couple layers of leather strip may also work. The idea is to provide for enough clamping along the entire edge to prevent air leaks. Phil Quote Link to comment Share on other sites More sharing options...
Finnr Posted August 25, 2012 Share Posted August 25, 2012 Go to "internet archive. Pull up Practical Blacksmithing. It is a book from the late 1800's early 1900's. There are several very good [pieces obout how folks tinkered together blowers for forges in that era. All low tech and quite simple. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 25, 2012 Author Share Posted August 25, 2012 i dont find tips to make blowers i only find axle option how to make axle how to heat treatman i find how to make bob i look at book , can you tell me on how page is bellows show Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 28, 2012 Author Share Posted August 28, 2012 final picture when bought tin snips the job was half done Quote Link to comment Share on other sites More sharing options...
VaughnT Posted August 29, 2012 Share Posted August 29, 2012 Excellent work, Azur! Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted August 29, 2012 Author Share Posted August 29, 2012 thanks i will secure that bether because it almost hit the ground and i think its heavy i must make balance Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.