I've had a lot of problems with the revolute joint attaching too. Have you tried adding the Pin Behavior? You also have to make an event to attach it with Pin.

I've found that to be a lot more reliable in situations where I can get away with it.

If you have two physics objects, you'll want to tell them to ignore collisions.

I'm still getting the error, but at least when I export to html the error is hidden. And everything looks ok.

Guess my only option is to keep studying the rope examples that I've found in search, though I can't figure out the difference so far. I'll revisit it at some point but don't want to delay other aspects of the game

Instead of the dragging event, have you tried adding the DragDrop behavior to the sprite?

It's just like adding the bullet behavior in the Beginner Tutorial, but controls all of the dragging. You won't have to mess with setting the objects manually thatway.

Hm it works and looks perfect, but still have the Javascript error. I couldn't get chrome to copy and past the error message, but here's a new capx

https://docs.google.com/open?id=0B3orP9kUYRALSExSNGl0cHNSeFdmSl9RU2dHNGVxQQ

I don't know why I had so much trouble with this, but I just had a revelation.

I changed the event "Clip is overlapping clip" and it picked the two clips and made the joint.

Zephlon, I found that with Parallax layers you have to check off the box that says Show in Editor. Then move them over in the preview. It might be easier to move them in place with events than using layers?

I did get this working! If you use the scale mode, it'll fill out to whatever height your view window, but add more to the sides. Seems to work well for any resolution.

It's better to use a 4:3 aspect ratio so that slightly more of your layout shows in widescreen. But make sure your layout has more padding built in to show if they have a wider screen. (Similar to a "bleed" if you're familiar with print graphic design.)

Aspect ratio seems more important to construct than resolution

Thanks for replying. Here's a capx https://docs.google.com/open?id=0B3orP9kUYRALTjFvWGhNZjRURC1tSGpyOFNvdE9MUQ

The other revolute joints work, but you'll see that it gives a Javascript error and the two paper clips don't attach to each other.

I have tried a few variations, but no luck yet

I figured out basically that position objects on startup doesn't work. It attached the joint where ever they were in relation to each other on the layout or when spawned.

I still haven't figured out how to pick out instances when I have more than one of the same sprite connected

There may be a way to work around this, depending on what result you're looking for. What would pressing the key do?

I've been playing around and looking at examples in the forum. I still can't figure out why some joints will work and others won't, or won't have the correct setup. Is there any detailed explanation of how to join two objects? The manual and physics tutorial are fairly conceptual and seem vague on the actual "how to" aspect

I'm having trouble understanding how to pick and connect revolute joints. I have a set of chain links. After I duplicate the links, I'm having trouble figuring out how to connect them. I either get a javascript error or they just fall apart (not connected).

My setup seems pretty basic:

Repeat 5 times

Pick Chain instance Chain.Count-1 > Spawn Chain, Create revolute joint