J5 kit contents/RH-01 hand assembly

Hi,

I’ve been slowly building up my J5 (a 10 week old baby slows things down!), and find there are not enough Nylon Rivet Fasteners provided in the sealed pack to mount the four servos required for the RH-01 arm, as described in the assembly guide:

lynxmotion.com/images/html/build090.htm

per arm, each pack comes with eight nylon fasteners - enough for two servos, the other two servos I’ve mounted with the usual steel screw/washer/nut. Am I missing something here?

While I’m here, should the J5 slump backwards when assembled? Obviously I’m not ready to power it up yet, and do have some R/C oil-filled shocks that I could replace the long springs with to provide more tension.

I’m really enjoying building up the robot. Everything has that feel of quality and I love the “just come off a CNC” feel when pulling out parts for assembly.

Thanks

JB

Well I’ve looked everything over. The kits on the shelf have 8 fasteners and they are correct. The problem is when we changed the ASB-04 brackets to use 3mm hardware we neglected to change the assembly guide to reflect this. :blush:

You should use the 3mm hardware to mount the bracketed servos, and the nylon fasteners to mount the servos to the lexan parts. Sorry for the trouble, we will correct the assembly guide.

The servos in the waist are strong enough to make gestures, but they are not strong enough to lift the entire J5 torso assembly from extreme forward or backwards positions.

No worries Jim, thanks for looking. I ended up using the nylon fasteners for the cheaper (hand) servos and the usual 3mm hardware for the (stronger) elbow servos for stability, which you have recommended.

Once built and tested, it’ll probably be pulled apart for various mods :slight_smile: I’d like to post up a worklog on the site when I get around to this and more familiar with programming etc.

Thanks

JB

I’d like to see a pix of these shocks installed if you do go ahead and use them. Although I’m not sure they would replace the “counter” tension of the springs.

Alan KM6VV