I agree if the idler is a spring tension type. But if it is a solid mount what would matter which direction the belt travels?
Thomas ----- Original Message ----- From: "R Rogers" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, October 25, 2004 5:04 AM Subject: Re: [CAD_CAM_EDM_DRO] Re: drive belt idler > > One thing that should be considered when using an idler upon a belt is > that they are intended for a belt that travels in only one direction. A > fundemental principle in engineering regarding belt and chain power > transmission is that an idler only be utilized on the slack side of the > sheave/belt, sprocket/chain configuration. A bi-directional belt/sheave > configuration would fall into a category making an idler improper. Of > course it all depends on the load but, belts and chains should not be > pulled over idlers under load. Their purpose is to remove slack on the > slack side. Not that this really applies in this case. Just wanted to > mention it. > > Ron > > Thomas Powell <[EMAIL PROTECTED]> wrote: > > The motor plate is slotted and adjustable but only about 1/4". There are > two belts lengths close to what I need, 134 and 142 toothed. The 134 is > .45" too short and the 142 is .33" to long. I am going to get the 142 and > take up the slack with the idler pulley. I am using HTD 15 mm belts. > > Thomas > > > > ----- Original Message ----- > From: "turbulatordude" > To: > Sent: Sunday, October 24, 2004 8:34 PM > Subject: [CAD_CAM_EDM_DRO] Re: drive belt idler > > > >> >> Interesting. I mounted as stepper in such a way as to be on a plate >> that had curved slots in it and used a 1/4 inch bolt as the hinge. >> >> If you are doing this on a rotary you are fine. But if you are doing >> it by hand, those lines will look awfully out of alignment. >> >> From some printers I have idlers on bearings on a single plate, not a >> square. Two holes, one slotted the other as the hinge. >> >> I didn't see a post indicating the belt size you were looking for ? >> >> Dave >> >> >> >> >> >> >> >> Addresses: >> FAQ: http://www.ktmarketing.com/faq.html >> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ >> Post Messages: [EMAIL PROTECTED] >> >> Subscribe: [EMAIL PROTECTED] >> Unsubscribe: [EMAIL PROTECTED] >> List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], >> [EMAIL PROTECTED] >> Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] >> [Moderators] >> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO >> >> OFF Topic POSTS: General Machining >> If you wish to post on unlimited OT subjects goto: >> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it >> if you have trouble. >> http://www.metalworking.com/news_servers.html >> >> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a >> sister site to the CCED group, as many of the same members are there, for >> OT subjects, that are not allowed on the CCED list. >> >> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. >> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ >> bill >> List Mom >> List Owner >> >> >> Yahoo! Groups Links >> >> >> >> >> >> >> >> > > > > > Addresses: > FAQ: http://www.ktmarketing.com/faq.html > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ > Post Messages: [EMAIL PROTECTED] > > Subscribe: [EMAIL PROTECTED] > Unsubscribe: [EMAIL PROTECTED] > List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], > [EMAIL PROTECTED] > Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] > [Moderators] > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO > > OFF Topic POSTS: General Machining > If you wish to post on unlimited OT subjects goto: > aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it > if you have trouble. > http://www.metalworking.com/news_servers.html > > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a > sister site to the CCED group, as many of the same members are there, for > OT subjects, that are not allowed on the CCED list. > > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ > bill > List Mom > List Owner > > > Yahoo! Groups Links > > > > > > > > > > --------------------------------- > Do you Yahoo!? > vote.yahoo.com - Register online to vote today! > > [Non-text portions of this message have been removed] > > > > Addresses: > FAQ: http://www.ktmarketing.com/faq.html > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ > Post Messages: [EMAIL PROTECTED] > > Subscribe: [EMAIL PROTECTED] > Unsubscribe: [EMAIL PROTECTED] > List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], > [EMAIL PROTECTED] > Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] > [Moderators] > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO > > OFF Topic POSTS: General Machining > If you wish to post on unlimited OT subjects goto: > aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it > if you have trouble. > http://www.metalworking.com/news_servers.html > > http://groups.yahoo.com/group/jobshophomeshop I consider this to be a > sister site to the CCED group, as many of the same members are there, for > OT subjects, that are not allowed on the CCED list. > > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ > bill > List Mom > List Owner > > > Yahoo! Groups Links > > > > > > > Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
