Peter Wallers Robot Ramblings

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peterwaller
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Peter Wallers Robot Ramblings

Postby peterwaller » Tue May 15, 2012 8:12 am

It seems like a good idea to bunch all my robots information under one topic as Jim and Haz have done rather than a seperate topic for each.
So here is some info on my latest which is a new version of Combatant.
To look at it is much more like Variant but as it is a fixed configuration robot and the present Combatant is next to useless it is the new Combatant.
Variant has always been quite good at doing damage but could do with being a bit more stable and less prone to flying out of the arena.
To this end the new version is lower and wider and should have a larger diameter weapon.
Here is the chassis machine out of 3.2mm fibreglass.
Image
Here all the parts laid in place roughly.
Image
Here it is up the right way it may well need slightly large wheels to stop the blade grounding when inverted.
Image
All up weight at present less blade and tyres is just under 100 gms.

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Re: Peter Wallers Robot Ramblings

Postby Remote-Controlled Dave » Tue May 15, 2012 10:23 am

Looking good Peter, I love it when you put a new spinner in the arena. Is there anything holding the motors in place besides rubber bands? Do they hold them ok?
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Re: Peter Wallers Robot Ramblings

Postby joey_picus » Tue May 15, 2012 12:43 pm

Looks very nice as always Peter :) I like the way the frame is milled to hold the motors and gearboxes, makes me wish I had one/knew how to use one, hehe!
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Re: Peter Wallers Robot Ramblings

Postby peterwaller » Tue May 15, 2012 1:16 pm

The rubber bands were just holding it while I checked every thing fitted and took the photos they will be replaced with tie wraps for the final thing.
By positioning the blade correctly at 45 degs I think I could take it up to 125mm diam and still fit the box and miss the wheels.

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Re: Peter Wallers Robot Ramblings

Postby josh » Tue May 15, 2012 1:24 pm

Will the fibreglass blade hub hold for an impact with a disk that long?
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Re: Peter Wallers Robot Ramblings

Postby peterwaller » Tue May 15, 2012 3:15 pm

Thats a good question the one in the photo is in fact a beefed up version of the one on Variant made to replace that one as it was starting to split.
I suspect that for larger diameters I will need to go to a thinner blade to cut down on drag so I might be able to make it wider and rely more on the mounting screws to take the impact.

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Re: Peter Wallers Robot Ramblings

Postby earthwormjim » Tue May 15, 2012 7:01 pm

tis athing of beauty.Simple,but incredibly well done.
Look forward to seeing this fight OTHER PEOPLES robots!!!
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Re: Peter Wallers Robot Ramblings

Postby haz » Tue May 15, 2012 8:11 pm

that's fantastic, good to see new things being done :)

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Re: Peter Wallers Robot Ramblings

Postby peterwaller » Thu May 17, 2012 6:25 pm

I have cut a new hub to suit the thinner but wider blades.
Now all up weight of 116 gms with the new 122mm diam blade.
The wheels now on order are 30mm dia and 20mm wide plus tyres will increase the weight a bit more.
Image

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Re: Peter Wallers Robot Ramblings

Postby Remote-Controlled Dave » Fri May 18, 2012 6:53 am

That's a scary looking blade! :o
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Re: Peter Wallers Robot Ramblings

Postby BeligerAnt » Fri May 18, 2012 5:30 pm

Add a small amount of pitch and it will certainly take off! (Is this Mr Waller's way of getting back to R/C aircraft?)
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Re: Peter Wallers Robot Ramblings

Postby peterwaller » Fri May 18, 2012 6:04 pm

Funny you should mention that I have been toying with the idea of adding negative pitch to hold it on the deck. :roll:

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Re: Peter Wallers Robot Ramblings

Postby earthwormjim » Fri May 18, 2012 6:26 pm

LOL. I have been thinking of the same thing too.Adding pitch to the middle area of the blades,keeping the ends flat.
Could cause alot of instability if both sides dont match though???
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Re: Peter Wallers Robot Ramblings

Postby peterwaller » Tue May 22, 2012 7:53 am

Made a little progress having shaped the blade and added the front spikes.
Image
I have also shortend and tidied up the wiring.
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Also moved the tiewraps in board to enable the new deeper wheels when they come to fit.
Image
All up weight is now just under 110gms so it might be possible to enter it as a cluster with Alsoran if I can lose the extra weight of the bigger wheels and tyres.

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Re: Peter Wallers Robot Ramblings

Postby earthwormjim » Tue May 22, 2012 7:59 am

Dave26 wrote:That's a scary looking blade! :o


No Dave,THATS a scary looking blade! :D

That is a good looking beast,Peter. A ferrari among robots. :)
Image


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