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View Full Version : Discussion Linear Actuators rather than Servos for some functions?


FirmamentFX
Oct 08, 2006, 03:42 AM
:D Hi all,

I found some good priced miniature linear actuators (around about $45USD each). Has anyone had any luck using them for functions like flaps/slats/gear where speed isn't that important?

Just wondered if it was the "done thing" or not. Think I'm going to give it a try unless I hear horror stories!!

Tuner
Oct 09, 2006, 03:09 PM
Id be very interested in these. Got a link.

kd7ost
Oct 09, 2006, 04:09 PM
I saw these in my June 2006 issue of Servo magazine.

http://www.firgelli.com/products.htm

Dan

philthyy
Oct 09, 2006, 04:27 PM
These are so sweet! I am impressed! I've been dreaming of making my own 7 function robotic arm controlled by two cheap four channel airplane controllers and mounting it on a Kyosho Snow Blizzard with my wireless camera...These might just be the ticket.

kd7ost
Oct 09, 2006, 05:06 PM
Took me a minute to find these again.

The throw isn't all that far but here is a conversion which changes the circular output motion of a servo to true linear.

http://www.e-clec-tech.com/lisekits.html

Dan


Sounds like a fun project BTW. Here's mine but without an arm.

http://www.rcgroups.com/forums/showthread.php?t=548511

Terry S
Oct 10, 2006, 03:54 AM
Nice woodworking Dan !

Terry

kd7ost
Oct 10, 2006, 07:09 AM
Thanks Terry,

I have bearings for the shafts in there too. ;) I don't have metal machine tools so everything gets done with wood.

Dan

FirmamentFX
Oct 10, 2006, 08:57 AM
Yes firgelli are the ones (sorry I undersetimated by $10!). I'm waiting to see what their LS series is like - longer travel. Might be useful for flaps and gear. Not sure about the power though.

M