JS92 Posted October 16, 2008 Posted October 16, 2008 (edited) Hey all, its gonna be bonfire night soon, 5th Nov. for us UK people, so its a time to let off fireworks until midnight (new law, no fireworks after 12am!) anyway I have: KN03, Charcoal, Sulphur, Milling Jar, Media (Ceramic Balls), some wood to mount ball mill to and some skateboard wheels for one of the rollers! But I am Missing a motor!!! I cant find an appropiate motor anywhere, can someone reccomend me a motor (what kind etc) and if you are british, then a link to a shop or name a business that will provide me with a suitable motor for the job! My friends are expecting me to make some fireworks! And I need a ball mill!!! Thanks. Edited October 16, 2008 by JS92
oskarchem Posted October 16, 2008 Posted October 16, 2008 Get to the junk yard, and ask for a motor. I'm thinking of a washing machine...
JS92 Posted October 16, 2008 Author Posted October 16, 2008 Thanks for the fast reply dude, are you from UK? Anyway, what could I search google for to find a junk/scrap yard near me ? quite a hard thing to search for really...dont suppose many junk yards have a website But anyway thanks for the reply :]
tentacles Posted October 16, 2008 Posted October 16, 2008 (edited) You might also try an appliance shop, if you're a city dweller. They more than likely have motors salvaged from junked units, or junk units you could salvage a motor from for a modest price. You're also going to need a couple pulleys, belt, driveshaft and bearing blocks. (called pillow blocks) When you're calculating the rotational speed/ pulley sizes etc, your motor will most likely spin at 1425 RPM, with your wacky 50hz power. Edited October 16, 2008 by tentacles
oskarchem Posted October 16, 2008 Posted October 16, 2008 Nope, I'm from France. You could look on the yellow pages though.
JS92 Posted October 16, 2008 Author Posted October 16, 2008 Thanks all, I think im gonna take all saturday to visit around places where I could get a potential motor from. :]
Swede Posted October 16, 2008 Posted October 16, 2008 You could probably execute an eBay Buy-It-Now for a perfect motor, reasonably cheap, and get it in a few days. It might not be a bad idea to do that (find and buy one on ebay), THEN, while you are waiting, you could look for one locally. Worst case, you'd have two cheap motors. They aren't expensive. Echo tentacles, an AC motor that will run 1700 RPM will run less on 50 hertz, which is good! Avoid motors that are labeled 3400 RPM. That would simply mean more gearing down.
FrankRizzo Posted October 16, 2008 Posted October 16, 2008 Appliance shops are probably your best bet. However, don't use a washing machine motor, instead find a used one from a dryer. Dryers run at a constant RPM, and so have very simple motors. The washer motors typically have funky wiring for multiple speed settings and feedback.
mormanman Posted October 16, 2008 Posted October 16, 2008 Frank how come you never told that before. I made one with a washer motor and I'll be damned if it didn't take a month to get it up and running
tentacles Posted October 17, 2008 Posted October 17, 2008 Here you go: http://cgi.ebay.co.uk/electric-motor_W0QQi...id=p3286.c0.m14 Leeson makes a damned good motor, and 1/2HP will drive just about any drum you can set on there. I use a 1/4HP leeson to run my 40+lb 8" jar, and it's under no strain whatsoever.
FrankRizzo Posted October 17, 2008 Posted October 17, 2008 Frank how come you never told that before. I made one with a washer motor and I'll be damned if it didn't take a month to get it up and running Oh, I remember that motor alright. In fact, trying to help you wire it up is the reason I recommend that people stay away from them.
oskarchem Posted October 17, 2008 Posted October 17, 2008 Aha, thanks for the tip Frank. I've been wanting to make myself a nice big ball mill, and using a washing machine motor. I guess that I'll have to find myself a dryer.
JS92 Posted October 18, 2008 Author Posted October 18, 2008 (edited) How is this motor? any good? seems pretty heavy duty, judging from the size of it. also very cheap too, in my budget range any comments? Edited October 18, 2008 by JS92
FrankRizzo Posted October 18, 2008 Posted October 18, 2008 How is this motor? any good? seems pretty heavy duty, judging from the size of it. also very cheap too, in my budget range any comments? Absolutely. That motor will work wonderfully.
JS92 Posted October 18, 2008 Author Posted October 18, 2008 Thanks dude only just got ya PM gonna do it now, and thanks I feel much better now, for some reason, probs the fact that I can breath a sigh of relief that I can get a decent motor, just wanna know somit else >.< It won overheat will it? but I mean come on look at the size of it, somit that big and powerful shouldnt overheat within hours....right? Thanks anyway, and for the tip
Swede Posted October 18, 2008 Posted October 18, 2008 Most good motors are thermally protected. It will shut itself down when too hot. The possibility still exists for a hot motor case (still running within ITS OWN specs) to cause problems with leaking flammable solids. I'd simply ensure that any leaks cannot contact the motor, or especially get inside through the vents. A simple shroud over/around the motor should do.
Arthur Posted October 18, 2008 Posted October 18, 2008 http://www.gemrock.net/products/products_c...ory.asp?cat=233 http://www.manchesterminerals.co.uk/acatal...g_Machines.html Will get a mill to you for less than you can buy one for! The hard plastic drums are cheap and efficient, the rubber drums are supposedly less efficient at milling but SO MUCH quieter that I prefer them. Just do NOT overload the mill as they stop!
tentacles Posted October 19, 2008 Posted October 19, 2008 60 rpm isn't enough for a 6" - my 8" is close to perfect at 65 RPM. There's a wonderful calculator over on passfire.. Proper speed for a 6 is 73 RPM, and a 4 should be around 92
JS92 Posted October 25, 2008 Author Posted October 25, 2008 Right managed to throw somit together Some pics...and a video im currently editing that will be on youtube http://i103.photobucket.com/albums/m160/porsche911GT/SL270464-1.jpg http://i103.photobucket.com/albums/m160/porsche911GT/SL270465-1.jpg http://i103.photobucket.com/albums/m160/porsche911GT/SL270466-1.jpg http://i103.photobucket.com/albums/m160/porsche911GT/SL270467-1.jpg http://i103.photobucket.com/albums/m160/porsche911GT/SL270468-1.jpg Click the image for a larger view, the original files were 3072 x 2304! But photobucket scaled them down And I will post a link to the video as soon as it uploads Enjoy (and thank you to everyone who helped me ) EDIT: Youtube Video: http://uk.youtube.com/watch?v=dEtf0VeSFXs&fmt=18
oskarchem Posted October 25, 2008 Posted October 25, 2008 Nice mill! I'm guessing that with that motor you could put on a bigger jar. Just as a safety precaution I would put some kind of divider between the jar and the motor, a thin peace of wood would do the job.
JS92 Posted October 25, 2008 Author Posted October 25, 2008 Nice mill! I'm guessing that with that motor you could put on a bigger jar. Just as a safety precaution I would put some kind of divider between the jar and the motor, a thin peace of wood would do the job. Thanks!!! But I was testing my mill throught the build process with only media in it, ceramic balls, and it spun it perfectly, but when I added the BP mix, it was a little slower :S but im not sure, I think that the fact that parts are not very secure on the whole rig might compremise the friction between the jar and the roller causing a slower and less "seemingly powerful" motor :S I dunno....need to set the rig in stone (saying) basically meaning it is all fixed perfectly and is rigid!
FrankRizzo Posted October 25, 2008 Posted October 25, 2008 Just roll a few wraps of duct tape around the jar near the top and bottom for more friction against the roller. Also, make sure the roller is spinning so that it's "lifting" the jar (i.e. looking at the jar lid, it should be spinning anti-clockwise). Other than that, it looks like it will get the job done.
JS92 Posted October 25, 2008 Author Posted October 25, 2008 Just roll a few wraps of duct tape around the jar near the top and bottom for more friction against the roller. Also, make sure the roller is spinning so that it's "lifting" the jar (i.e. looking at the jar lid, it should be spinning anti-clockwise). Other than that, it looks like it will get the job done. Thanks....hoping to make some really decent BP with this I know its typical, but I made a polumna to test some of the BP after about 1hour 40 mins of milling and 8-| omg! It was loud! sooo... need to re-stock on kno3
mormanman Posted October 27, 2008 Posted October 27, 2008 Very nice, I'm going to steal the idea of the bearing embedded in the wood though.
Bonny Posted October 27, 2008 Posted October 27, 2008 Just roll a few wraps of duct tape around the jar near the top and bottom for more friction against the roller. Also, make sure the roller is spinning so that it's "lifting" the jar (i.e. looking at the jar lid, it should be spinning anti-clockwise). Other than that, it looks like it will get the job done. I think that is where I have some problems with slipping on my mill. My driven roller is on the wrong side. My mill is due for a rebuild this winter so I'll be sure to change that.
Recommended Posts