Aluminum Skull Chassis - A New Beginning

i see it :slight_smile:

LOL! ohā€¦ that phone. Itā€™s my daughterā€™s phone that I am using to support the torso. Without it, the bot wants to fall backwards because there are no servos in the torso except the head servo.

You had me looking at my video a few times looking for a phone in the background. :laughing:

lol, see how useful BOUGHT electronics can be?

they hold up your hand made ones quite nicley :laughing:

anyway, and have u made any progress beyond wat u have shown us?

Nope! :laughing:

Well, I did contact my machinist about getting another head so that I can mount the components properly. That is going to take some time. What I would like to do is get the Mini-AB board, Atom Pro, and SSC-32 next.

I am currently in the middle of making another version of the RSCU board with the PING interface connector removed and a reset button added to replace a jumper. The new board is panelized and should be at my door steps in a few weeks. I ordered all components from digi-key, and hopefully they will get here before the board does. This board is the last one of this version I will make. This makes #5 I had made!

The hard part is the cost of servos. once I have the other components, I can focus on getting a few servos each pay check.

My problem is; I am at a cross road, trying to decide if I want to make a biped or a rover. The great thing about a rover is the cheap cost of motors in comparison to servos. you only need max 4 motors for a typical application.

I will move in the direction of making a biped because I can always use the same components on the rover. After I get the ABB, Atom Pro, and the SSC-32, I will decide what direction I want to take then.

Nice job. I like the sound of the voice, very robotic.

Thanks!

**Here is the RSCU evolution picture. From left to right: **

The first board I ever made. 2nd, same components except I added .1" header connectors and changed the layout for better routing of the traces. 3rd, first SMT board, this board worked except for the audio sensor portion, it had wires crossed on two pins on one of the ICs. 4th board mounted on the torso, this board worked perfectly and had many hours of testing and survived a few reverse polarity hookups to the power source, in one case, the vreg got so hot from being hooked up backwards that it started to smoke, but it still works! Rugged I tell ya!

Board #5 is in China and ready to be sent to me :laughing: This board has silk screen changes and removed the PING interface connector and added a reset button for the SpeakJet Chip.

http://img294.imageshack.us/img294/4631/rscuevolutionqi8.jpg

Wow!
Mike that is really cool!
long time no see, I finally got back on track with my bot hobby too.
I got a robonova to play with while I fabricate my lynx biped. Good bot but not the biped I will be satisfied with until I build one myself. :laughing:
Nice to see you are making a new board, I still have the first generation you made. It actually works pretty well. Although it isnā€™t hooked to anything!
Tinman

I did finish it the same day, but couldnā€™t load it till now.
please accept my humblest apologies. :wink:

img2.putfile.com/thumb/8/22617250178.jpg

now you need to give me a lot more dimensions as these were all fudged while looking at your pics. also I did this on SW 2006 so if you donā€™t have 06 and since i have to redo it all anyway because your no draftsmen (stinking dimensionless part drawings) Iā€™ll do it on 2005

nick_a

I think this is one of the longest threads running, and its a very interesting project you both have. Im still wondering if Mikeā€™s gonna get back into his project, it was really cool when he started off, donā€™t know exactly where heā€™s at now :laughing:

Nah,the Longest thread running is the ā€œ28ā€ Hexapod-Hybrid Tank with 1/4 Scale Servos" Thread :laughing:

Very nice Project mike,I donā€™t think i saw this one yetā€¦ermā€¦I have to search the forums more often :laughing:

First offā€¦ thanks Nick!

You can thank eMashineShop for the fudged numbers since when I export the design using the DXF format, it sort of explodes the different faces.

I have been downloading several demo cad programs to find one that is easy to use so that I can design different skull configurations since eMachineShop WILL NOT export any 3D data. I have tried BobCad, Alibre Design (free version), Concepts 3D, Solidworks, OneCNC, eShape and perhaps a few others. They are all very frustrating and very hard to design in 3D. eMachineShop has an extremely simple and easy to use interface where you simply draw 2D in the left, right, top and bottom views making simple lines and telling it how deep to cut in the Z plane to make a 3D object.

Italian_guy299 - I have been here in the forums on and off but have put the project on hold due to financing and other interests. Believe me, I sit here watching all you other guys doing your projects and only wish I could do the same. It never fails that there is always something the family needs that takes away any extra we have for my hobby.

I have decided that I will most likely get a brat and put my skull on that. I was hoping to build a biped Pete style bot to see what it would look like with the head, arms, torso and legs. Perhaps I can find a way to add simple arms on a brat.

Back to the 3D stuff. My long term goal is to get a Milling machine and make several copies of my skull design and make it available to whoever wants one as well as scratch build an entire bot out of aluminum 100% my own design. I am currently looking for a Cad program that is easy to use, at least easy enough for me to make my own skull designs with several variations. I really like OneCNC but it is pricy, and Bobcad seems like a possible candidate also. They both have CAM built in which is needed to machine the models. I was looking at another CAD program called Cobalt that seems the be the easiest of all cad programs so far but it is like $5000 for that :open_mouth: and it does not include CAM features.

Iā€™m here, Iā€™m thinking, my ideas are still with me, but Iā€™m just not ready yet.

Trueā€¦ but I have the most ā€œlookersā€ :stuck_out_tongue: :laughing:

Trueā€¦But if i am right,I believe your thread is ā€œOlderā€. Please tell me if i am Wrong :wink:

And weā€™ll keep on lookin.

WOWY7 to contridict the Master :imp: :smiling_imp:

YES MASTER, we are you lookers, teach us how to build aluminum skull heads :open_mouth:

Look up Sherline Products for a small CNC mill. (Under $3000)

AutoCAD all the way!

For the machine controller ā€œEMCā€, enhanced machine controller, itā€™s free and open source. Sherline has links to it.

I have a sherline mill and lathe and the quality is amazing.

I have considered getting one of these but for almost the same price, you can get a Syil X2 Mill which is better for larger parts and stronger. All that would be needed is a PC and the Mach3 Controller software.

The Syil is a dedicated Mill, so you loose out on the lathe part, but my main interest right now is machining 3D models. Also, the Syil uses standard R8 tooling.

You can look at them here:

www.syilamerica.com

Have you looked at EMC? You could probably use it on many of the possible mills.

Hey Space,

Can you show me some photos of what you cut with the Shirline? I just want to see how it does.

The Shirline just seems like it can barely cut without the spindle stalling on the work piece. Itā€™s belt driven right? I wish I could see it in person.

I really like the Syil Super X3, but itā€™s a bit out of my range. But then again, I might want to get a good one so in the long run it would be worth it.

Iā€™m only looking right now, I am open to other possibilities.

wow seeing this project getā€™s me all inspired to do mine again

I will have some pics in my minisumo thread of new aluminum wheels soon. They are 3cm across.

There are already brass wheels that i turned there.

This is lathe work but the belt never slips, and in the lower rpm range has more torque than you will ever need.

I have never slowed down the mill spindle while iā€™m cutting.

I donā€™t really have any suitable projects to show you.

It will effortlesly drive a 3/8 end mill 2mm deep (I have a metric mill with inch cutters :unamused: )