The Mighty Seraphim

[craig_colliass]

Because of problems with the original drive system I have decided to completely re-model the robot.
I thought this might be interesting to some people thinking of making a different type of featherweight robot.
Just to remind you how the old robot looks here is a link to the pictures.

http://s569.photobucket.com/albums/ss13 ... GA4933.jpg

Thanks for watching.

[craig_colliass]

Re: The Mighty Seraphim

A picture of the new motors that I hope to use.
The main problem is they are twice the weight of the old motors seraphim was under weight (when I took off the armour on the front) but not 2Kg!! So I will have to re-design the whole thing to get the weight to 13.6Kg

http://s569.photobucket.com/albums/ss13 ... GA5149.jpg

[Mouldy]

Re: The Mighty Seraphim

Hey craig, did those motors and gearbox's i saw in eds garage not do the trick? Those new ones are massive!

[craig_colliass]

Re: The Mighty Seraphim

No

Ed did a brilliant job (thanks again Ed) but it was a case of fixing one weakness and then something else breaking so I decided to call it a day and re think the design.
What I really need is a 100-150w motor with an epicyclic gearbox with an output shaft about 12mm diameter and speed of about 120-150rpm
Please let me know if you find some

[craig_colliass]

Re: The Mighty Seraphim

A picture of the new drive motor for Seraphim I have fitted a drive spindle into the original annular gearbox shaft, with a section of 17mm diameter to fit the original Seraphim hubs for the wheels.


http://i569.photobucket.com/albums/ss13 ... 1253960891

[craig_colliass]

Re: The Mighty Seraphim

The new chassis of Seraphim

http://i569.photobucket.com/albums/ss13 ... 1255381634

A long way to go I was not going to start this till January but TV is so bad

[dgr]

Re: The Mighty Seraphim

I love your robots Craig, they really do add a needed level of variety to proceedings

[craig_colliass]

Re: The Mighty Seraphim

How kind, thank you
Now all I have to do is make them competitive

[dgr]

Re: The Mighty Seraphim

Pah! Who builds robots to be competitive? Not I.

[craig_colliass]

Re: The Mighty Seraphim

I'm not supposed to be doing anything on Seraphim but the TV is so bad at the moment, I find I am in the garage doing bits and pieces on it and it seems to be going ok
Here are some pictures of the project so far, the front is the forked end, and the sword will be attached to the pointed end, the big problem with this robot is getting the weight down to 13.6Kg, each motor wheel and hubcap are 4.2kg? I think the first attempt will be a little over weight.



http://i569.photobucket.com/albums/ss13 ... 1257103080
http://i569.photobucket.com/albums/ss13 ... 1257103229
http://i569.photobucket.com/albums/ss13 ... 1257103287

[craig_colliass]

Re: The Mighty Seraphim

With the body nearly complete the first mock-up with a wheel motor assembly and the sword propped up in position.

http://i569.photobucket.com/albums/ss13 ... 1257325806

[craig_colliass]

Re: The Mighty Seraphim

Starting to fix the motors in and fit the sword. Here is a picture of Sreaphim as is now


http://i569.photobucket.com/albums/ss13 ... 1257513603

[craig_colliass]

Re: The Mighty Seraphim

I did some sums, and Seraphim will be as fast as Saint across the arena and swing the sword a little faster than Saint, so it might even scratch some paint off your robot this time

[craig_anto]

Re: The Mighty Seraphim

how high is the body off the floor Craig?

[craig_colliass]

Re: The Mighty Seraphim

Craig,

I don't know exactly as the wheels are off at the moment so I can't measure the distance. But at least 120mm probably a lot more, the bottom is designed to be slanting upwards so the very front is about 200mm from the ground the distance between the wheels is about 560mm. the only time any of the body of the robot gets close to the ground is when it is flipping over to hit something (usually the floor!!) then the motor ends are about 20mm off the floor but only for a split second.
The whole design dose not need much armour as not much can reach that high so it will be a very open design. I don't know if it will work but it will be different.