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Frags - Barton Robotics - NSW


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Dylon



Joined: 09 Nov 2006
Posts: 630
Location: Newcastle, NSW


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Frags - Barton Robotics - NSW

With Uni finished for the year and most of my new house plans sorted its time to get back into robots.
Have had this robot sitting here for about 3 months and had been waiting to well finish it before making a build thread but I enjoy making progress threads, makes the forum less dead looking and helps me reflect on what i have done.


Here we go.
After not having built a feather sized spinner for over 6 years and seeing the lack of spinners these days i thought its time mess shit up again Wink
Quick look back at the old days for the newbiez so over 6 years ago i built Misfortune - A huge beater (i believe Mr Mangles beater would have almost fit within the internal shape of the beater Razz) with a full bisalloy frame.

http://i56.photobucket.com/albums/g185/tuxedo_photo/Misfortune/IMG_1961.jpg

It had some success:
https://www.youtube.com/watch?v=T0pS3Gu2_tA
https://www.youtube.com/watch?v=RIC_-J_e-P8 (Favourite fight of all time cause its Glen Razz )
https://www.youtube.com/watch?v=Ajl6Kanoa_s

And some fails:
https://www.youtube.com/watch?v=Sq4bRBi9l7c
https://www.youtube.com/watch?v=TU02ikm10m8

After building a new version:
http://i56.photobucket.com/albums/g185/tuxedo_photo/Misfortune/IMG_2444.jpg

I decided to take a break from robots and sold it to a guy over in America where it competed at Motorama to varying success
http://i363.photobucket.com/albums/oo76/botman64/Misfortune/CIMG0849.jpg

I believe it is still around somewhere competing at various events in the states.

Anywho enough of the past and onto the future.

Name: TBD

Drives - 2 x BANEBOTS P60 16:1 with 3" Colsons in 4WD configuration using timing pulleys.
Weapon Motor - SK3 Aerodrive 5045
Batteries - 5s 3000mah Lipo.
Weapon - 2 x 16mm Hardox 500 Single tooth disks 180mm Diameter.
Electronics - TZ85 for drives, Yep 100A for weapon.
Armour - 10mm Aluminium frame, 16mm Aluminium weapon supports, 5mm Aluminium base, 4mm Polycarbonate top, 15mm HDPE cannon fodder sides.


First thing was first and to convert all the files into the CNC software.
Then cut it all out
quick vid of a side panel being cut out
https://www.youtube.com/watch?v=gJqke9J8gTs&feature=youtu.be


Wish I got more photos on it being cut out ah well.

All the aluminium parts cut out, deburred, countersunk and tapped.


Next was to press in all the bearings and make sure the frame is going to fit together.


As you might be able to see I incorporated locating tabs in all the panels to allow ease of assembly and make sure everything sits square and lined up.
So then it was as simple as putting it all together like a jigsaw puzzle, clamping it all down then spot drilling all the mounting holes.



All drilled, tapped and fitted.


The biggest experiment with this whole design is whether the 16mm uprights will be strong enough to withstand impacts. I am very new to using Aluminium frames so not knowing the limit of what it can and can't do very well.

I am banking on that with extra support as you can see below, and the fact the whole weapon assembly also acts as a big strengthening brace to the whole frame it will all hold up nicely. Worst case takes 10 minutes to smash out a piece of the frame so replacements are possible.


Next on the list is to fit all the components.
The drive configuration uses 1 x 20T 1/5" Timing pulleys per wheel driven from another 20T pulley double thickness on the P60. Shorter belts are 110xL037s and longer belts are 150xL037. The reason for choosing this setup was purely because my work has a bucket load of these pulleys and belts used for all the stepper drive motors on the CNC Routers.


Most of the electronics roughly put in place.


So might be able to tell but the whole drive setup is based off my sportsman lifter Voli. The setup proved reliable for once so I will be sticking with this layout for a while i imagine.
Below is a size comparison compared to Voli.


Next on the list was to make the sacrificial side plastic panels and after discovering Voli runs very poorly upside down a small adjust to the frame was needed. The weapon should bounce the whole robot back over if it was to get flipped but just incase it will still have plenty of traction to drive inverted.


To help create consistent bite with the disk and to deal with pesky wedges; 3mm Hardox 450 skirting wedgelettes.


Lastly was to wire it all up and cut out the top cover. Due to weight issues mainly coming from the stupidly heavy 32mm disk, I am going with 4mm Polycarbonate. The top plays no roles in anything structural and is purely just to keep everything from flying out so 4mm would do fine.


I lasered out a cool little linkage plug. At the moment the RX is just in a bolt container i found at work but i have recently purchased a 3D printer so will most likely print out a neat little box for any loose wires to go in.


All wired up and ready for a test drive. Drives real nice, pretty much identical to Voli. Has a mad drifting type feel to it also Smile
https://youtu.be/6KgmPM2jzns

More on the next page >>>>
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Barton Robotics Youtube Channel:
https://www.youtube.com/user/dyl30

Barton Robotics Facebook Page:
https://www.facebook.com/BartonRobotics


Last edited by Dylon on Wed Jul 12, 2017 9:45 pm; edited 1 time in total

Post Fri Nov 18, 2016 3:56 pm 
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Dylon



Joined: 09 Nov 2006
Posts: 630
Location: Newcastle, NSW


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The Weapon

Now onto the cool stuff which is still in progress.
Due to laser kerf getting a solid 32mm disk cut out would be a bit of a handful so I decided to go with 2 x 16mm disks and just join them together.
Having zero experience with serious weapons I drew up the disk I wanted and with some help from Glen and his trusty CNC mill it is all coming together quite nicely.

Fresh from the laser company.


The general design is making 1 solid aluminum hub that nicely press fits into the centre of the disks with 4 x M10 shoulder bolts running all the way through acting as locating pins at the same time.

110mm x 100mm 6061


M10 x 75 Shoulder Bolts


Disk will be driven via a V belt to help shock absorb impacts and protect the brushless.
Looking at around 2:1 gear ratio which should calculate the disk at 100% throttle to be around 8000rpm Cool
Future testing to prove what rpm will be the ideal.

Shaft is 20mm with 2 x 20mm SKF 6004 deep groove bearings.
Poorly machined up some washers to hold the whole assembly together. uses an M10 countersunk bolt.



Quick test fit to see what the final robot will look like before sending the disks and material to Glen to work his magic.


So after almost 4 months this is where the robot is at. Disks are in Glens hands as we speak. well his workshop while he is off exploring Europeland.

Due to the material and bolts taking longer then expected to arrive, Glen only had time to machine the mounting holes in both disks. First time cutting hardox in his new mill and he was quite happy with how it all turned out.

Probably going to get this all wrong but will try to explain the process.
After painstakingly converting Autodesk Inventor files into a Solidworks format a jig was drawn up and cut out of some scrap Aluminium to keep both disks concentric and lined up.

I have no idea on the tooling involved I imagine if Glen wants he could shed some light on all that stuff. I will just provide the pretty photos Smile







and yeah that is the robot as of now. More to come when Glen is back, providing he ever wants to come back haha. Razz
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Barton Robotics Youtube Channel:
https://www.youtube.com/user/dyl30

Barton Robotics Facebook Page:
https://www.facebook.com/BartonRobotics

Post Fri Nov 18, 2016 3:57 pm 
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miles&Jules
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Joined: 19 May 2010
Posts: 3954
Location: ipswich QLD


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Looks pretty epic😎
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

Post Fri Nov 18, 2016 8:38 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11678
Location: Sydney, NSW


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Very nice work! I don't know about that lack of spinners comment; we have quite a few either running or under construction and there is sure to be an invasion of spinners from New Zealand next year.
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Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Sat Nov 19, 2016 7:54 am 
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Dylon



Joined: 09 Nov 2006
Posts: 630
Location: Newcastle, NSW


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Hmm maybe lack of destructive spinners would have been more accurate? Besides yourself the Canberra featherweight class event looked very pushy bot
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Barton Robotics Youtube Channel:
https://www.youtube.com/user/dyl30

Barton Robotics Facebook Page:
https://www.facebook.com/BartonRobotics

Post Sat Nov 19, 2016 9:45 am 
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Nick
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Joined: 16 Jun 2004
Posts: 11678
Location: Sydney, NSW


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Garry was there with a whole fleet of spinners and won the 'Most Destructive' award - some of his older models are less destructive but still do some damage. Harley's Whizzbee KO'ed itself early on, which was super disappointing. The Kiwis had the very effective Dream Crusher.

The main difference this year was that Glen and M&J didn't bring spinners. With all these new high-end vertical spinners appearing, I really need to finish Decimator's upgrades to keep the balance Twisted Evil.
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Australian 2015 Featherweight champion
UK 2016 Gladiator champion

Post Sat Nov 19, 2016 3:23 pm 
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Dylon



Joined: 09 Nov 2006
Posts: 630
Location: Newcastle, NSW


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Bit of progress.
Glen machined up the weapon hub and pulley. looking good as always.




Those angles make the disk look huge in comparison to the uprights haha.

Posted down the brushless so everything can be test fit before it goes into the robot.
Very keen to spin it up and smash some stuff, should be looking at around 6000 - 7000rpm which will be rather scary Smile
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Barton Robotics Youtube Channel:
https://www.youtube.com/user/dyl30

Barton Robotics Facebook Page:
https://www.facebook.com/BartonRobotics

Post Tue Dec 06, 2016 2:44 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11678
Location: Sydney, NSW


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Looking good Dylon! I'm already working on TBD's nemesis, hopefully they will get a match at the next event.
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Post Tue Dec 06, 2016 6:36 pm 
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Dylon



Joined: 09 Nov 2006
Posts: 630
Location: Newcastle, NSW


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ROUGHLY 2 MONTHS AGO

I received a package in the mail!



Glen finished up the disk and sent it all over, big thanks for Glen for all that <3

Tore the box apart and got to work fitting it all together, now I do have a workshop for these easy assembly kinds of things but well lets just say you would need to be as skilled as a ninja dodging laser beams to get passed everything in there so the make shift bedroom workbench it is! >_>



With the disk bolted in place I was able to add all the gussets to help brace the weapon uprights.



Apologise for the blurry photos to come, at some point it would seem samsung did an update to their camera firmware and made it unable to ever focus. Rolling Eyes

Anyway finished the wiring with a XT60 power link.



As CAD land goes sometimes things look well spaced on a drawing but in reality that might be pushing it, may have to pocket around the pulley at some stage, will see how the belt fits and decide.



Lastly was to fit a top cover and the robot is FINISHED pending paint and such.



Due to the belt not having arrived by the time i had it all done a quick belt substitute was required for siq test spins, aka a bunch of cables ties Razz
and here we go (note slowly ramped it up to reduce some slipping).

https://www.youtube.com/watch?v=M4FN9UWagVM



THE PRESENT

So here we are now and that illusive belt turned up about a week ago, although due to the vivid hype all drive motors and batteries have been borrowed for a different robot.
After vivid is over I will fit the new belt give it all a proper test.

oh and if anyone is interested, the weight of the disk Twisted Evil


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Barton Robotics Youtube Channel:
https://www.youtube.com/user/dyl30

Barton Robotics Facebook Page:
https://www.facebook.com/BartonRobotics

Post Tue Mar 28, 2017 12:21 am 
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Valen
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Joined: 07 Jul 2004
Posts: 4420
Location: Sydney


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Too pretty lol
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Post Tue Mar 28, 2017 7:59 am 
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Cpnwolfe



Joined: 29 May 2012
Posts: 434
Location: Rockhampton/qld


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very very smexy!
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Post Tue Mar 28, 2017 5:48 pm 
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Dylon



Joined: 09 Nov 2006
Posts: 630
Location: Newcastle, NSW


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Been fairly slack updating on the forum.. Mostly due to using Facebook as a nicer way to showcase the builds and it would seem the way they handle their images won't work on the forum so haven't been bothered to upload photos twice.

Feel free if you have Facebook to follow my page.
https://www.facebook.com/BartonRobotics/

All recent updates are on there.

Anyways here is the complete finished version of Frags. Ready for nats.

_________________
Barton Robotics Youtube Channel:
https://www.youtube.com/user/dyl30

Barton Robotics Facebook Page:
https://www.facebook.com/BartonRobotics

Post Sun Aug 13, 2017 6:57 pm 
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miles&Jules
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Joined: 19 May 2010
Posts: 3954
Location: ipswich QLD


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Nice work Dylon-Looks mean cant wait to see it in action👍😎😎👌👌
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

Post Sun Aug 13, 2017 11:16 pm 
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