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Belts and pulleys IV11

6 REPLIES 6
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Message 1 of 7
Anonymous
4143 Views, 6 Replies

Belts and pulleys IV11

How can you specify a custom toothed belt length for say a T10 tooth profile
it seems DA has preset lengths which don't seem to be standard, some
manufacturers make custom lengths as well.
6 REPLIES 6
Message 2 of 7
alesricar
in reply to: Anonymous


Hello,

There is a way how to customize all belt properties
as well as add your own specific belts. What you need to do is to customize data
files in Design Data folder.

 

To customize the simple T10 belt you need to open
"c:\Program Files\Autodesk\Inventor 11\Design Data\Design
Accelerator\Tables\SBelts\Belts\T10-DIN7721.xml" file and
modify its data. You might use NOTEPAD or some XML
editor.

 

Each length of the belt has its own properties. It
is represented as <Member> section in the XML file. For example if you
wish to add length for 67 teeth you need to add following mebers into the XML
file (these new members are for widths 16, 25, 32, 50 mm) :

 

    <Member
moniker="16-T10-67" >
     
<Size>16T10 x 670</Size>
     
<Width>16</Width>
     
<Teeth>67</Teeth>
   
</Member>
    <Member
moniker="25-T10-67" >
     
<Size>25T10 x 670</Size>
     
<Width>25</Width>
     
<Teeth>67</Teeth>
   
</Member>
    <Member
moniker="32-T10-67" >
     
<Size>32T10 x 670</Size>
     
<Width>32</Width>
     
<Teeth>67</Teeth>
   
</Member>
    <Member
moniker="50-T10-67" >
     
<Size>50T10 x 670</Size>
     
<Width>50</Width>
     
<Teeth>67</Teeth>
   
</Member>

Imporant is the "moniker" property. It has to
be a unique value. It is saved to you assembly for later edit.

 

If you work in multi-user environment or if
you share your assemblies with other users I recommend to create a
copy of this file (create a new belt - based on your manufacturer data
) specify your desired data and add this new belt into
selection.

 

To modify selection of belts you need to modify
"c:\Program Files\Autodesk\Inventor 11\Design Data\Design
Accelerator\Tables\SBelts\SBelts.xml" file. Again use NOTEPAD
or some XML editor. Find following section and add new <Row> section with
your filename.

 

 <Table
InternalName="F6EF2578-1209-435d-915D-B1950887DAF3">
   
<Definition DisplayName="Synchronous Belts
Category">
     
<Columns>
        <File
Description="" Units=""/>
     
</Columns>
    </Definition>
   
<Data>
     
<Row>
       
<File>SBelts\Belts\mxl-iso5296.xml</File>
     
</Row>
     
<Row>
       
<File>SBelts\Belts\my_custom_belt.xml</File>
     
</Row>

     
<Row>....

I hope this recepie is not too confusing. The
intent of the program is to give you an option to build custom library of belts
that would exactly describe belts from your belt supplier.
Default data installed are mostly based on standard values. If you need
more assistence please let me know. I believe I can help you to create
modifications in the XML files that you need.

 

Regards, Ales Ricar

 

 

How can you specify a custom
toothed belt length for say a T10 tooth profile
it seems DA has preset
lengths which don't seem to be standard, some
manufacturers make custom
lengths as well.


Ales Ricar
Software Engineer
Message 3 of 7
Anonymous
in reply to: Anonymous


Thanks Ales much appreciated,

 

This isn't exactly intuative nor a simple work
around but at least it gives me the ability to do what I want. How do you go
about changing a tooth profile to HTD type or are we limited to T's AT's
etc or have I missed something? 

 

 
Message 4 of 7
alesricar
in reply to: Anonymous


It is the only way how to customize the belt's data
at this time. You are right. The supported tooth profile is trapezoidal only.
Other types of 'curved' profiles require different pulleys and they are
not supported in R11 belt generator. There are still areas for
improvements.

 

However, if you are interested more in transmission
geometry you might create XML file of your HTD belt what can pretend it is
a trapezoidal tooth profile belt. Belt generator does not build belt teeth
so the most important parameters are pitch, width, height and
number of teeth. You will also need XML data of HTD sprocket. You may
create models of HDT pulleys as regular inventor models and then let
belt generator just design transmission layout for you. The generator
can use existing pulleys in your assembly. One pulley in the transmission
needs to be sliding so generator can determine the sliding pulley position
based on belt length. Such pulley has to be "virtual"  (see the picture
enclosed). The belt generator is not going to create any pulley.

 

What HTD belt you are most interested in? Are you
also interested in other brand names such as HPT,HT, GT, GT2, STS, RRP, HPR or
others? There are many types of belts. We want to concentrate our future
development to belt types you would use the most.

 

Thanks,

 

Ales Ricar

Programmer Software Engineer
Functional
Design
DSG-MSD
EMEA

 


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">


Thanks Ales much appreciated,

 

This isn't exactly intuative nor a simple work
around but at least it gives me the ability to do what I want. How do you go
about changing a tooth profile to HTD type or are we limited to T's AT's
etc or have I missed something? 

 


size=2>
 


Ales Ricar
Software Engineer
Message 5 of 7
n.schotten
in reply to: alesricar

Sorry to dredge up this old tread..But.

 

Do i understand correctly that to add a lenght to a sertain belt type you need to add that lenght to all the widths?

And to create a totaly new type, just copy all files of a sertain type, rename them and alter the data (monicker's) and the design (ipt) files of the pully and belt profile.

 

Has anyone modified these files / created new type data that they would like to share?

 

Thanks,

Niels

Message 6 of 7
kenblu24
in reply to: Anonymous

Hello, I'm using Inventor Pro 2017. Has the belt generator been updated to support curved/round belt profiles, such as GT2, GT3, and HTD?

Tags (2)
Message 7 of 7
n.schotten
in reply to: kenblu24

Hi,

No updates to the belt assortment in IV2017. Don't think IV2018 will have them either 😞

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