Bevel gear - module/script/tutorial

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mafer78
Posts: 56
Joined: Sat Sep 26, 2015 2:12 pm

Bevel gear - module/script/tutorial

Postby mafer78 » Sun Oct 18, 2015 7:30 pm

Hello Community,
I've need to build a Bevel gear but I'm not found more information.

Do you know if exist an extension/module and/or py script or tutorial?

If no, could someone can help me to create this bevel gear?

I've already search on google but there is only a video on youtube of chinese and is not clear at all.

Note: my version of freecad is 0.15 - 4671

BR
//Mafer
murdic
Posts: 88
Joined: Fri Feb 28, 2014 12:35 am

Re: Bevel gear - module/script/tutorial

Postby murdic » Sun Oct 18, 2015 11:30 pm

Use the part design involute gear tool to specify the gear's base profile parameters, scale a coaxial clone that isn't on the same workplane in x and y, with a and use them as profiles to loft between.
mafer78
Posts: 56
Joined: Sat Sep 26, 2015 2:12 pm

Re: Bevel gear - module/script/tutorial

Postby mafer78 » Mon Oct 19, 2015 9:23 am

thanks for feedback, could you help me with more details? I'm a newbe

//mafer
godblessfq
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Re: Bevel gear - module/script/tutorial

Postby godblessfq » Mon Oct 19, 2015 1:32 pm

I am new to FreeCAD too. I tried the loft tool, the result gear is twisted. You may try the gear workbench,
viewtopic.php?f=3&t=12771&p=102283&hili ... ar#p102283
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quick61
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Re: Bevel gear - module/script/tutorial

Postby quick61 » Mon Oct 19, 2015 2:20 pm

godblessfq wrote:I am new to FreeCAD too. I tried the loft tool, the result gear is twisted. You may try the gear workbench,
viewtopic.php?f=3&t=12771&p=102283&hili ... ar#p102283
Shouldn't come out twisted unless you instructed FreeCAD to do so / didn't perform the task correctly. ;)
BevGear.png
BevGear.png (42.61 KiB) Viewed 3125 times
BevGear.fcstd
(96 KiB) Downloaded 108 times
Mark

OS: Kubuntu 14.04.3 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.5764 (Git)
Build type: Release
Branch: master
Hash: eff27994e57bc1eb07af8f378d1b85e3b635e194
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17-dev
This post made with 0.0% Micro$oft products - GOT LINUX?
mafer78
Posts: 56
Joined: Sat Sep 26, 2015 2:12 pm

Re: Bevel gear - module/script/tutorial

Postby mafer78 » Mon Oct 19, 2015 3:36 pm

Hello guys,
first of all many thanks for your answers.

If I understand well I've two options at now:
1 use the gear workbench retrieved on the following URL https://github.com/looooo/FCGear
for this one , do you know if this workbench works fine als oon the version 0.15 4671?
2 modify the fcstd posted by quick61

well done

//Mafer
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sgrogan
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Re: Bevel gear - module/script/tutorial

Postby sgrogan » Mon Oct 19, 2015 4:02 pm

mafer78 wrote:1 use the gear workbench retrieved on the following URL https://github.com/looooo/FCGear
for this one , do you know if this workbench works fine also on the version 0.15 4671?
Works fine for me
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.15.4671 (Git)
Branch: releases/FreeCAD-0-15
Hash: 244b3aef360841646cbfe80a1b225c8b39c8380c
Python version: 2.7.8
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
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quick61
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Re: Bevel gear - module/script/tutorial

Postby quick61 » Mon Oct 19, 2015 5:06 pm

mafer78 wrote:Hello guys,
first of all many thanks for your answers.

If I understand well I've two options at now:
1 use the gear workbench retrieved on the following URL https://github.com/looooo/FCGear
for this one , do you know if this workbench works fine als oon the version 0.15 4671?
2 modify the fcstd posted by quick61

well done

//Mafer
You don't have to modify what I did, just create the gear size you wish to have at the base, then Draft Clone it. With the Clone, any changes you make to the original, like number of teeth, module size, pressure angle will be automatically updated in the Clone. Once you have the Clone, you can scale it through the Scale entries its data tab and position it's height with Placement. Then Part Loft between the two. It's that easy.

Give it a try.

Mark
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DeepSOIC
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Location: Saint-Petersburg, Russia

Re: Bevel gear - module/script/tutorial

Postby DeepSOIC » Mon Oct 19, 2015 6:22 pm

I suspect that Marks method doesn't produce correct tooth profile. But it is probably good enough for FFF 3d printing.
mafer78
Posts: 56
Joined: Sat Sep 26, 2015 2:12 pm

Re: Bevel gear - module/script/tutorial

Postby mafer78 » Mon Oct 19, 2015 6:36 pm

Hi,
great feedback but I coming back to you :D

sgrogan : I've tried to install but any appear on the workbench window (?!!!) , I've followed the istraction on the github.

quick61: great method , I've tried with good result but I've need bit more.....
In attachment a image of bevel gears that I need to buildup on freecad, with the red arrows some aspects that I don't understand what I can do for reproducing the line. Could you help me?

every other tip&trick are really welcome

br
//Mafer
Attachments
bevel_gear.JPG
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