1.5g servos

erco

Lately I've won several Ebay bids on these tiny linear 1.5 g servos: http://cgi.ebay.com/2x-1-5-g-Rc-servo-Ultra-Micro-3D-flight-1-5-Gram-/230659474707?pt=LH_DefaultDomain_0&hash=item35b4604513

Been winning at prices like 2 for $6.50. They are quite nifty, and obviously very different from a rotary servo. Main problem is finding a micro connector that fits. They operate with the normal pulsouts from 1-2 ms long.

They are intended for ultralight RC airplanes. Dunno exactly what I'm gonna use them for yet. A micro walker and an ultralight robot gripper are candidates, though. I'm sure you folks might have uses as well.

RonP

I have some of those. I also have a few of the little RX boards that have two servos on them, with two additional servo outputs and a speed controller on one little board. I have been thinking about a way to make a little crawler with them. I haven't seen a little crawler that uses these tiny servos YET.

erco if you make a walker or crawler you might have the first one ever made.

GordonMcComb

Prolly a micro JST or Picoblade. Not easy to find, and if you make your own the tools can be mad expensive. If it were me I'd just chop off the connector and put a regular 3-pinner on it, size be damned. Pololu (shhh!) sells the shells by the sea shore:

http://www.pololu.com/catalog/product/1902

and they offer 100-packs of the female crimp connectors. Basic crimp tool is $20 at Fry's.

Though a bit more expensive, HobbyKing (direct China importer) has these if you need to pick right or left. Here's a left-hand action:

http://www.hobbyking.com/hobbyking/store/__11737__HobbyKing_Ultra_Micro_Servo_1_7g_for_3D_Flight_Left_.html

Do bear in mind the ones you're buying are probably for the domestic China and Asia markets. The ones imported here are usually a bit better quality control.

-- Gordon

ajward

RonP wrote: »

erco if you make a walker or crawler you might have the first one ever made.

Heh... tiny servos... perhaps a walker made with toothpicks! (Walking away quickly now!)

Amanda

erco

Suddenly these are all selling on Ebay for $7-8. I think some forumistas are secretly wrecking my $6.50 streak. Shoulda kept my mouth shut until I cornered the market!