Team 2980's Open Source FIRST BOT

[eedoga]

Thanks for the kind words.

As for paint, we'll have to wait and see how we are doing on weight and money. I think we will be fine...

Window motor connectors...We cut away the plastic last year and had a motor fail because the connector broke from being stressed. A search through this forum turned up the connectors via mouser.com. You have to get the plugs and the pins separately. They totaled under $2 a piece. (we went to NAPA first and they sold us connectors that didn't fit for $28 a piece...(we returned them only loosing shipping.)

http://www.mouser.com/ProductDetail/...yGCEJfow%3d%3d
http://www.mouser.com/ProductDetail/...dZeQpqSw%3d%3d

We put some 2ton epoxy in the holes in the back of the plugs to keep things from pulling out.

So a few posts back there were questions about safety and our arm motor system. Here is what we came up with.




It is still possible to get a finger caught in there if you try really hard...We used 1/8th inch plexi and a bender to make an open backed cover. we will probably decorate it or something. The plastic protector stuff is still on there so when we peel that off the writing goes with it.

We will definitely be posting detailed tutorials on our electronics and pneumatics systems this weekend for anyone who is interested...

Hope this helps.

Edoga

[Tristan Lall]

You may want to leave the plastic film attached to the acrylic (i.e. polymethylmethylacrylate, known as Plexiglas). It will help keep the pieces together if it gets smashed. You should be able to remove the ink markings with a solvent like isopropanol.

Next time, consider polycarbonate, which is much more impact-resistant.

[2611.Shooter]

just noticed- your arm seems to be fairly far inside the bumper perimeter at it's lowest extension, and I am assuming it's highest as well. at present, it appears as if the arm will only be able to place on the middle, which may pose problems. Or does the tower slide forward, or the arm get longer?

based on post #6

[eedoga]

I will be posting in more detail on the arm tonight. As you currently see the arm it is facing backwards on the robot, and will flip over the top of the tower to the front of the robot. The top section of the arm is mounted on slides and can extend another 18 inches. That puts the gripper at over 9'.

Now the one major problem we have run into is getting hardware into the tiny gap between the two arm rails. We've got it done now, but it was nowhere near ideal.

Edoga

[Nadav Zingerman]

Originally Posted by eedoga

Thanks for the kind words.

As for paint, we'll have to wait and see how we are doing on weight and money. I think we will be fine...

Window motor connectors...We cut away the plastic last year and had a motor fail because the connector broke from being stressed. A search through this forum turned up the connectors via mouser.com. You have to get the plugs and the pins separately. They totaled under $2 a piece. (we went to NAPA first and they sold us connectors that didn't fit for $28 a piece...(we returned them only loosing shipping.)

http://www.mouser.com/ProductDetail/...yGCEJfow%3d%3d
http://www.mouser.com/ProductDetail/...dZeQpqSw%3d%3d

We put some 2ton epoxy in the holes in the back of the plugs to keep things from pulling out.

So a few posts back there were questions about safety and our arm motor system. Here is what we came up with.




It is still possible to get a finger caught in there if you try really hard...We used 1/8th inch plexi and a bender to make an open backed cover. we will probably decorate it or something. The plastic protector stuff is still on there so when we peel that off the writing goes with it.

We will definitely be posting detailed tutorials on our electronics and pneumatics systems this weekend for anyone who is interested...

Hope this helps.

Edoga

I'm glad you decided to do this . It's exactly what I had in mind.