tag:blogger.com,1999:blog-6231841547435511043.post5934067556933129265..comments2023-06-13T01:05:30.996-07:00Comments on The Electricle™ : Bicycle Electric-Motor-Assist Project: Realigning The Motor ChainM.E.http://www.blogger.com/profile/15375034485988839284noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-6231841547435511043.post-34173668775914334722009-11-13T00:17:53.500-07:002009-11-13T00:17:53.500-07:00Gears...I could use teh ability to make custom gea...Gears...I could use teh ability to make custom gears. Could I make helical-tooth ones? I think that would be too complex for this lathe, and my skills and coordination. :( I ask because they are quieter than regular ones, which means less energy being wasted as noise and vibration and heat.<br /><br /><br />The 1-3/8 x 24 tpi [1.375 x 24 tpi] dies can be had from <a href="http://www.victornet.com/cgi-bin/victor/productlist.html?subdepartments=Special+Pitch+Dies%2C+1-3%2F16%22+and+Larger%3A1173%2C507%2C599" rel="nofollow">VictorNet</a> <br />and I thought <a href="http://www.mcmaster.com/#dies/=4hbrb1" rel="nofollow"> McMaster-Carr </a> had them, but I don't see the 24 tpi, they only go up to 12?<br /><br />I forgot what other places I found them (besides bike parts dealers, who only sell to bike shops, so you would have to have your local bike shop order them for you).M.E.https://www.blogger.com/profile/15375034485988839284noreply@blogger.comtag:blogger.com,1999:blog-6231841547435511043.post-13079159597738379072009-11-12T17:38:48.656-07:002009-11-12T17:38:48.656-07:00Do by chance know where to buy those 24 tpi dies t...Do by chance know where to buy those 24 tpi dies that will work with a freewheel? I would like to get one myself. It would save me a lot of time on some of the stuff I build.<br />lee@packratworkshop.comLee's Workshop (Packratworkshop)https://www.blogger.com/profile/14054544267600194823noreply@blogger.comtag:blogger.com,1999:blog-6231841547435511043.post-88246035667632362382009-11-12T17:36:44.394-07:002009-11-12T17:36:44.394-07:00No problem, "pester" away. We are going...No problem, "pester" away. We are going to have to teach you how to make gears on that lathe too I see. It can be done if they are not too big.<br />lee@packratworkshop.comLee's Workshop (Packratworkshop)https://www.blogger.com/profile/14054544267600194823noreply@blogger.comtag:blogger.com,1999:blog-6231841547435511043.post-85011283622136714612009-11-12T00:51:14.488-07:002009-11-12T00:51:14.488-07:00I have a dremel with those wheels, but in this cas...I have a dremel with those wheels, but in this case the hacksaw was much simpler than dealing with two things rotating in different speeds/etc (i'm not all that coordinated).<br /><br />I didn't have to wear out lathe bits doing it, just a cheap hacksaw blade. (I might've even gotten this one out of something I found in trash, IIRC). Just used the lathe bit to make the score line to guide the blade. <br /><br /><br />The only problem with casting things to use for these purposes is I would also need to thread them, and I don't have the tools needed to do that. I have a few SAE dies and taps, but they're all small. It's about $50 plus shipping to get a tap *or* die (not both!) for the 24TPI BB sized threads (also used for freewheels). Money I don't have to spend.<br /><br />If I had all the gears for the lathe, I could turn threads on it, but I don't. I'm not coordinated enough to manually move the tool platform at the rate needed to cut the threads by hand. <br /><br />I'm probably still going to do some casting and whatnot eventually, but for the moment I have not enough parts that I need to do this, that I can't more easily make out of other things. <br /><br />For my "nice" version of this bike (or trike) to be made once I figure out enough of the problems with this design and fixes for them, I will certainly be learning casting to make all the odd bits I want for it. :) I've been saving up old harddisks for their aluminum bodies partly for this reason.<br /><br />I might pester you with questions about the casting process once I get that far. ;-)M.E.https://www.blogger.com/profile/15375034485988839284noreply@blogger.comtag:blogger.com,1999:blog-6231841547435511043.post-41975118659816236632009-11-11T17:15:21.920-07:002009-11-11T17:15:21.920-07:00Get you a dremel tool with the little cutoff wheel...Get you a dremel tool with the little cutoff wheels. Mount it on the lathe when you want to cut something like that off. It works well and the cutting disks are cheaper than good lathe bits! I've even used a 90% air grinder on mine.... makes short work of hardened steel stuff. <br />Also I have to ask, since you have a lathe, why don't you make all your own bb stuff? you can easily cast aluminum disks from scrap to make the bearing retainers from and then use whatever size axle in them you want. That's what I did for my tadpole trike when I added a motor through the rear bb. I got what I wanted that way instead of having to figure out how to use some odd stuff to do it. Metal casting blank forms from aluminum to use on your lathe is very easy to do and a pretty quick way to get needed parts too.<br /><br />Lee@packratworkshop.comLee's Workshop (Packratworkshop)https://www.blogger.com/profile/14054544267600194823noreply@blogger.com