R2-D2

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Skirt complete and first steps..

So, I gook the R2 unit outside and sanded it off good, before going wild with a 2-component bond (Plastic Padding). This was supposed to harden within 10 minutes.

To my surprise it had still not hardened and really started stinking up the place real good after about an hour.

Guess it pays to take out *everything* from the box. It was a 2-component bondo, so I forgot to mix in the hardener..

Ah well, take it out again and scrape off as much as I could, before applying a new layer.

This time it DID harden, and I sanded most of the skirt. I will go over it once again before painting, but all in all, I’m really happy with how it came out.

What do you think?

Yesterday was another day with my cold still not allowing me to move about as I wanted, so it was a calm day. Spent the evening fiddling with the electronics, trying to get a small servo to move by remote control.

No result.

For starters, it seems I had put the LED’s on the controller card facing the wrong way. Guess it was a while ago I was soldering those analog synth modules…

Anyway, after removing the LED’s and trying everything again nothing worked still.

At least the LED’s lit up, but that didn’t really help me.

 

So, at this point, I figured I needed to get something out of the equation, so I called it a night and decided to go and pick up a tethered PS2 controller that is on the “supported” list of my controller card, instead of the unlisted wireless controller…

Back home after todays meetings and usual Friday stuff, I got to work.

Took the R2’s legs down from the shelf, made ankle wedges for them and removed my small caster I had previously installed in my wheels as I realized they would cause more problems.

Finally, It was all about lifting in the experimental wiring I had done on my desk into the R2.

Armed with nothing but tape, I mounted the circuit boards where I could attach them, and tried the controller.

Well .. it moved but not as I wanted. Seems there was still some fine-tuning to be done.

 

Once the channel mixing was engaged on the controller, another try, and this time, something different happened.

I caught it on film but it wasn’t as interested as when I put the dome on and put in my bluetooth speakers inside the body!

Behold: the first steps of R2 … now it really is starting to feel reel. I have an astromech!

After the successful test, I spent the rest of the evening, making a small, but much more neat and handy electronics board:

Notice the über-small 11.1V, 1.3 Ah Li-Po battery at the bottom. Using two 11.1V 6Ah Li-Po batteries rather than two 12V 7.2 Ah Lead batteries will cost about three times as much, but it will save me more than 4 kg’s inside the droid.. Still haven’t decided what to do, but for testing purposes, this will do just fine!

Please note that in this picture, the Sabretooth is not hooked up completely, and the Slip Ring connector board I haven’t even touched =)

Still .. again, it really feels like I have an astromech!

By |2016-12-06T00:01:47+01:00February 24th, 2012|R2-D2|Comments Off on Skirt complete and first steps..

R2 is now wearing a skirt and has a detachable center foot mount!

Felt a little better today. The cold is definitely on its way back, and I’ve taken things easy again.

However, there are a few things that I’ve done on the droid after all.

First off, I drilled and tapped the center ankle and also the skirt and frame bottom, to allow for the center foot to be mounted on and off with 6mm wing nuts, just like the center legs.

So, now my leg mounts are complete! I also drilled and fastened the center foot into the ankle with 6mm bolts, so everything is secure!

Next thing was to sand the edges of the skirt, to get ready for completing it. I also wanted to add inner walls to the skirt, even though it is on the underside of R2, and very few people will ever see anything there, but I like to keep things looking neat, so I glued in 1mm styrene to cover the structure of the skirt.

Once that was done, I sat in my chair for a while chamfering. *sigh* Not my favorite thing to do, but necessary. And messy.

(… and I had cleaned up twice before I took that picture…)

Finally, the skirt, side angles and cones was glued onto the bottom ring, and is left over night to dry off. Only thing remaining now is the “ribs”, something that will require a lot of chamfering… again.

By |2016-12-06T00:01:48+01:00February 22nd, 2012|R2-D2|Comments Off on R2 is now wearing a skirt and has a detachable center foot mount!

Fixing the rockler bearing and more body work..

Will this never end..?

Today, I have suffered from a gigantic cold, but managed to crawl out of bed around lunchtime and did some work on the droid!

First off, I took my Lee Valley Rockler Bearing, and decided to clean it up to get it to spin better. It did spin fairly ok, I thought, but never more than maximum 3/4 of a lap when I spin it around.

So, I emptied the bearing out from all metal balls, dried up the groves from grease, actually cleaned them up with dishwashing liquid before going over them with my dremel and a steel brush.

Once complete, I replaced all the metal bearing with acetal self-lubricating bearings and added a touch of silicone grease for good measure.

The result? … well … look at this!

So, after the rockler done, The rest of the day has been spent with doing a little tidbit here and there. Mostly, this has been fixing small issues, and I also continued in cleaning up the hatch edges, and gluing them in place.

I also cut up a resin power coupled and did a temporary mount of the front one, just to check..

Starting to look pretty good, I think.

I also sanded the aluminum coin return slightly, to get away from the silvery shine..

On the backside, I also played around with the aluminum tape to see if I could do something about the famed unpainted panel…

For the more observant of you, you may realize that tiny R2 is not featured in any of these images.

As it turns out, he’s really sad.

Tiny R2 needs a hug.

By |2016-12-06T00:01:48+01:00February 21st, 2012|R2-D2|Comments Off on Fixing the rockler bearing and more body work..
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