Re: [CAD_CAM_EDM_DRO] Re: drive belt idler

I agree my tree mill uses a solid idler on the belt between the servo motor
and the leadscrew with a solid type idler between the two. No slop either
way.
Dan

----- Original Message -----
From: "Thomas Powell" <tppjr@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, October 25, 2004 8:54 AM
Subject: Re: [CAD_CAM_EDM_DRO] Re: drive belt idler


>
> 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" <rogersmach@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> 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 <tppjr@...> 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: CAD_CAM_EDM_DRO@yahoogroups.com
>>>
>>> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
>>> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
>>> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
>>> timg@...
>>> Moderator: pentam@... indigo_red@... davemucha@...
>>> [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: CAD_CAM_EDM_DRO@yahoogroups.com
>>
>> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
>> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
>> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
>> timg@...
>> Moderator: pentam@... indigo_red@... davemucha@...
>> [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: CAD_CAM_EDM_DRO@yahoogroups.com
>>
>> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
>> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
>> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
>> timg@...
>> Moderator: pentam@... indigo_red@... davemucha@...
>> [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: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
> timg@...
> Moderator: pentam@... indigo_red@... davemucha@...
> [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
>
>
>
>
>
>
>
>