bionic88

Hi all - I've been building an invention and it uses an RC motor to turn a 6x6 inch door/flap 90 degrees. What a waste of revolutions right? Only a 1/4 turn? Actually it works really well - smooth and powerful.

When I went into the hobby shop I selected a480 Motor with press fit 19T 0.5 Module Pinion gear. I asked the guy behind the counter which gear (I assume spur gear) would work with this pinion gear. Although he had a bunch on the wall behind him there was only one he could provide - a traxxas 64 tooth spur gear.

That gear was ok - but it had a large diameter hole in the center that took a lot of fanagling to mount to an axle. Here is a photo of the end product.


So to the experts, how do I know which gears will work with this pinion? I guess what should I be looking for or avoiding?

I'd like to make a DIY slip clutch but can't find any expamples on the web to save my life. I need something down and dirty. Off the shelf would be fine if it is cheap. Any suggestions on a clutch?

Lastly, what do you think of this motor? For the price it has some good torque. And for a motor that will only turn say 50 times instant torque is paramont. Are there better ones for less $$?

Any help appreciated - this is a cool invention and I hope it turns out well.

The_Shark

um. servo.

sloppyG

or a stepper motor

bionic88

Been down that road but then you have to modify to get 90 degrees, need a controller, etc. Cost goes up. Also need high torque and very high speed.

TIGER76

By the looks of it that 64 tooth spur is off the traxxas emax

[link=http://www.gshobby.com/index.php?main_page=product_info&cPath=785_1007_10 09&products_id=15999&zenid=b106a7a2bbfddd970128401 2077246d3]http://www.gshobby.com/index.php?main_page=product_info&cPath=785_1007_10 09&products_id=15999&zenid=b106a7a2bbfddd970128401 2077246d3[/link]

seems gearing wise
is fine

As for slipper clutch traxxas have pads behind the spur gear with a bolt running throught with a spring attached which can be tightened down to not slip or undone to slip alittle etc
see below piccy.

Im waiting for someone to suggest you use a brushless motor now LOL

bionic88

Thanks guys - and now I am revisiting servo control.  And controller circuits...

saucySavy

My Feedback: (2)

i still dont get what the hell he is trying to make

TIGER76

First post

saucySavy

My Feedback: (2)

ok i got that... but a door for what, and this is an invention..??

esaresky75

<div style="background-color: rgb(255, 255, 255); padding-top: 5px; padding-right: 5px; padding-bottom: 5px; padding-left: 5px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: Arial, Verdana, sans-serif; font-size: 12px; ">ok i got that... but a door for what, and this is an invention..??
[/quote]

<span class="Apple-style-span" style="font-family: Times; font-size: medium; "><div style="background-color: rgb(255, 255, 255); padding-top: 5px; padding-right: 5px; padding-bottom: 5px; padding-left: 5px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: Arial, Verdana, sans-serif; font-size: 12px; ">Well the piece in the picture is a Galvanized Reducer for HVAC so maybe a remote controlled damper?</div></span><br type="_moz" />

Steve.

Check these guys out for drive components:

http://www.sdp-si.com/

proanti1

My Feedback: (2)

What about this? Its not a slipper, but might get you in the right direction.

http://www3.towerhobbies.com/cgi-bin...?&I=LXSYK3&P=7