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Fred posted a new activity comment 10 years, 9 months ago
On a Mac, sorry .
Too bad ! Thanks anyway for your reply !
hehe. Will try to order some springs too (or find them in Paris).
Gael, do you think that one of those springs is usable? I am thinking to this one mainly: d = 0.70 L0 = 11.10 Ln = 13.46 Fn = 30.70 F0 = 4.50
Fred uploaded a new picture: Possible spring for… 10 years, 9 months ago
Maybe a possible spring for tendons ?
Actually the type you selected should be fine, but I have no idea how much tension would be required. I suggest getting a cheap box of various springs on ebay and run some test, then we will know what is the best. http://www.ebay.fr/itm/Spring-Assortment-Set-200pc-AST23-/121255490804?pt=UK_Hand_Tools_Equipment&hash=item1c3b63f4f4
okay I just ordered a box, but if you want a quick build, don’t wait for my test. 🙂
I have the exact same box at home. Its very useful to have.
and it’s cheap. most springs are expensive if you buy just 20.
Have you already tried this ? If so, what kind of spring do you use, and where to buy it ? 🙂 (ok, I’m lazy 😉 )
No I haven’t tried yet, I want to order a box of various springs on ebay.
Fred posted a new activity comment 10 years, 10 months ago
I try to use a spring on the retract tendon retraction in a few days because the tension on the servo is too strong and it suffers from this tension.
What kind of spring do you use or recommend ?
Damn, I tried to post a picture in my previous comment to show you how to set the spring to avoid the tension you are describing on the servo, but it didn’t show. I will send it to you by mail.
This combination allows you to adjust the tension of the tendons much more easily than with knots 🙂
Very nice. I like that.
No. It’s your pulleys, with a modification inspired by the derivative 233923 : no need print again pulleys, just drill and use small wood screws. I used little nuts instead of washers (I did not have washers so small).
Forget my question, problem solved .
Leapmotion is running 🙂
Hey That’s great news!!!
Hello Fred, Can I ask you if you made LeapMotion works with InMOOV arm on Windows PC, Linux PC or on a MAC ? (I didn’t manage to make it works on my Windows PC, so, I wonder if you did it ). Thanks in advance for your reply. Didier
Fred uploaded a new picture: 69.jpg 10 years, 10 months ago
Great thanks for posting your pics!! I think I recognize the color choice, ehehe!
Fred uploaded a new picture: 71.jpg 10 years, 10 months ago
Fred uploaded a new picture: 68.jpg 10 years, 10 months ago
Fred uploaded a new picture: 67.jpg 10 years, 10 months ago
Nice, What kind of wire did you use?
It is not the derivative : http://www.thingiverse.com/thing:233923 that you used for the pulleys?
Fred uploaded a new picture: 66.jpg 10 years, 10 months ago
Hello,
I need some help 🙂
I’ve (finally !) finished my arm, and I’m trying to move it with Leapmotion. The wrist move correctly, but none of the fingers moves 🙁
What I’m missing ?
Fred
I’ll post pictures when the arm is ready. At the moment, I’m looking for the best way to fix the tendons. I am trying to print the Funlab actuators to test.
I must say that the setting of the tendons is the most difficult part of the mounting arm.
The ideal should be a (in french) “Tendeur 2 oeils” for each tendon, but I did not find one…[Read more]
The spring called “ressort tension” is more interesting I think, as I already suggested in various posts to use a spring on the retract tendon to keep both tendons always with a correct tensionning.Images intégrées 1
Fred posted an update 10 years, 10 months ago
Just started building InMoov. I’ve printed the right forearm and hand. I’m now playing (not really, it’s not so easy) with tendons, then I’ll use LeapMotion (fully configured). Next, will print right arm and shoulder, then the left parts.
For those living in France, Decathlon sold Fishing line (1mm / 280 Lbs) at a not too expensive price (18 e…[Read more]
Pictures!!!! 😀 😀
Yeah we want pics! That’s what I eat for breakfast. So Decathlon has InMoov tendons, that’s good news.