Register To Comment
Results 1 to 4 of 4

Thread: Bolts - The Scrappers

  1. #1
    callumhoy's Avatar
    Roboteer

    Status
    Offline
    Name
    Callum Hoy
    Robots
    PC Plod (HW) Bolts (FW)
    Location
    North Walsham
    Posts
    45
    Post Thanks / Like
    So, we just had our first event, Extreme Robots in Colchester. Firstly, thank you to those who we spoke to over the weekend, who helped fix some of our issues and gave us advice for the future.

    This is Bolts v1, the version that we took with us to Colchester:
    Bolts v1.jpg
    A simple wood and plastic wedge with big wheels. Needless to say we experienced the teething problems expected from a new team and their first bot. So here's a summary of the event for us.

    Saturday:
    Fight 1 - Signal Issues stopped us from entering, we'd never encountered it before and it worked fine the second we got back on the bench, so we looked puzzled and ignored it for now.
    Fight 2 - I drove Bolts rather badly, being impatient throwing it into full speed and slamming into a couple of walls. Both gearboxes lost their bearings after the spring holding them in came loose. Also, someone, we think Oddbot, punched a nice hole in one of our wheels.
    Fight 3 - Despite our efforts we were still having gearbox trouble, working fine on the bench it couldn't move under its own weight, the gearboxes just clicking as if over torqued. It wasn't until after the show that evening we realised how to fix this.
    Fight 4 - After replacing motors/gearboxes to a set of spares we got back into the arena. Peter drove this fight, proving he was much better at it than I am. Sadly during repairs we have to break the heat press on our wheel nut to replace the wheel with a hole in it. This led to a wheel rolling away during the fight, which we expected. We didn't expect the other to come rolling off shortly after.

    Overnight we took a look inside bolts and found that, somehow, we managed to shred one of the motor mounts we bought from Alex, leaving our gearbox spinning freely, and we didn't have spares.
    We also had a revelation when we realised our gearbox trouble came from the fact that the ring holding the spring down was the torque ring in the drill we took them from.

    Sunday:
    Fight 1 - Peter drove again, with new motors and tightened gearboxes we ran well in the arena. Until we came face to face with Explosion. As we were flipped over a wire came out of a connector block, killing one motor. Trying to drive with only one side meant the hot glue, kindly donated by Chris, that was holding our broken mount failed and the gearbox began spinning again. Finally, after losing our drive Explosion came back one more time to throw us over the wall and out of the arena, a personal highlight of mine.
    Fight 2 - After reconnecting the wire and re-gluing the mount we were feeling confident we'd be able to enter two in a row for the first time. Of course, confidence is a killer, and our signal issues returned to stop us making it to the arena.
    Fight 3 - Another failed start for us, the glue holding the mount once again failed, this time on the entrance to the arena.
    At this point we decided that we couldn't repair on site and we called it a weekend. We had a two hour drive ahead of us and packed up early, said goodbye to those around us and left early.

    We learned a lot for our first event, and saw a glimpse of how much more we haven't got a clue about. We already have ideas about how to improve for Bolts v1.1 so expect a post about that soon. Thanks again to the people who gave us a hand and took the time to have a chat. We'll be back.

  2. #2
    Roboteer

    Status
    Offline
    Name
    David
    Location
    Blackpool
    Posts
    1,651
    Post Thanks / Like
    I entered my first propper feather fight in April, learnt so much that this robot is a different breed compared to the first. There are loads of cool designs about, but it wasn't till I spent a full day at an event and looked at everything else that I realised how much of the robots there followed a tried and tested set of parts and build techniques. Like yeah u can throw something together and go to an event, but evolving an idea over time is how most of the better robots have got to where they are. It's nice to see someone else sort of taking on board where they went wrong and moving forwards.

  3. #3
    callumhoy's Avatar
    Roboteer

    Status
    Offline
    Name
    Callum Hoy
    Robots
    PC Plod (HW) Bolts (FW)
    Location
    North Walsham
    Posts
    45
    Post Thanks / Like
    Upgrades being considered for Bolts v1. (In no particular order)

    1. Shorten the body. Bolts was the largest FW by surface area at Colchester and has loads of unnecessary space inside it.
    2. Minimise the wood. The 10mm HDPE withstood far better than I expected, reducing the wooden under chassis would save weight to use elsewhere, such as a weapon or thicker HDPE.
    3. Replace internal connector blocks with XT60s.
    4. Shock mount the internals.
    5. Get new, wider wheels with more grip, we were sliding all over the arena with little control.
    6. New transmitter/receiver. Devo 7 with Deviation firmware has been recommended. Solving our signal problem from the event.
    7. Redesign the front wedge. Metal sheet, or full metal front plate.
    8. Move up from 12V to 18V motors and batteries.

    Possible Weapons

    1. Chain Flails, the original weapon planned before we ran out of weight and time to incorporate them.
    2. A linear actuator powered lifter in the middle of the top panel.
    3. An automatic or exponential flipper, similar to what is seen here:

    or here:

    4. Whatever you call this style of lifter. It looks interesting and is built into a similar body shape to Bolts.

  4. #4
    Ocracoke's Avatar
    Team Kaizen

    Status
    Online
    Name
    Michael
    Robots
    Shu! (Building) - BW / The Honey Badger - FW / Kaizen (In planning) - HW
    Location
    Somewhere on the Wirral
    Posts
    110
    Post Thanks / Like
    It is interesting how much the upgrade list reads like the considerations and eventual implementation I did for The Honey Badger, certainly items 2, 3, 5 and 7. I wish you well on this one.
    Team Kaizen

    Shu! - BW - Build Thread
    The Honey Badger - FW - Build Thread
    Kaizen - HW (In the planning stages)

Register To Comment

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •