Hacky Racers Wiki - User contributions [en]

Rule Zero

2025-08-17T12:34:22Z

Markmellors: /* Construction */ fixed a typo

{{Racer
|ProfilePic=RuleZeroProfile.jpg
|BuiltBy=Mark Mellors
|Theme=Fire Engine
|FirstRace=Scrumpy Cup 2018
|CurrentStatus=Active
|Motor=Vevor/Mophorn 1800W
|ESC= Vevor/Mophorn 1800W
|Battery=12S (48V) of EIG CO20B Lithium Ion 20Ah cells
|Transmission=13:80 6mm Chain
|Contact=@MarkMellors
}}

==Background==
[[File:RuleZeroOrigin.jpg|thumb|left]]
The name comes from the 0th rule of Hitchin Hackspace - Rule Zero - Do Not Be On Fire!
The theme of the body is based around a fire engine from local Hertfordshire Fire & Rescue, constructed from a PVC pipe frame, ABS sheets, and printed vinyl

{{clear}}

==Construction==
The chassis is based on a mobility scooter, with the main changes being:

* removing the seat and replacing it with one from a drift trike
* rear transaxle replaced with a solid (19mm 304 SS) rear axle, with a hydraulic disk brake and drive sprocket
* handle bars converted into a steering wheel
* steering goemetry slightly modified to give some trail, and reduced sensitivty

The wheels and tyres are from karts. the front wheels had their bearings replaced to match the scooters spindles. I machined adapters for the rears to bolt to the keyed rear axle.

The throttle and brakes are actuated by pedals. the pedals pull cables which turn a spring-loaded pot for the throttle, or the (hand) brake lever from the bike hydraulic brake.

The bodywork is PVC tube covered in heat-formed recycled ABS sheet, and vinyl wrapped. The bumpers are ~70mm HDPE water pipe, also heat bent to form the rounded corners.

Build videos:

https://www.youtube.com/watch?v=_2zzuY2yD6Q

https://www.youtube.com/watch?v=Uy0oinC1whU

https://www.youtube.com/watch?v=M5zO_7-MICA

https://www.youtube.com/watch?v=xP7fHLw0Fgw

{|style="margin: 0 auto;"
| [[File:Placeholder.jpg|thumb|alt=Wooden chassis]]
| [[File:Placeholder.jpg|thumb|alt=Wooden body]]
| [[File:Placeholder.jpg|thumb|alt=Steering components]]
|}

{{clear}}

==Powertrain==
10-12Ah, 12S Multistar lipos from Hobbyking, or custom 20ah Eig cell packs with BMS. (details?)
2kw scooter motor & 1.5kw ebike controller. (details?)
Source: https://vevor.co.uk/brushless-dc-motor-c_11227/48v-1800w-brushless-motor-controller-throttle-grip-powerful-quad-p_010700081791

The reduction is 13:80 with 6mm chain. The chain's certainly strong enough, but quite sensitive to misalignment, and keeps coming off, especially in reverse...

[[File:RuleZeroMotor.jpeg|thumb|right]]

{{clear}}

==Other Features==
[[File:Placeholder.jpg|thumb|right]]
Sound?
Lights?
Remote steering?
Great on two wheels!

{{clear}}

==Race Results==
{{VehicleResultsTable}}
{{clear}}

==BOM==
BOM for original build: https://docs.google.com/spreadsheets/d/13LH8uYXNQv7zIFvCdWGZtBPLQ-ZO0K0W6goraVPJs_k/edit?usp=sharing

{{clear}}

==Limitations==
Slicks have limited grip in mud, but does corner well in almost all other conditions.

{{clear}}

==Resources==
Twitter Account [https://twitter.com/MarkMellors @MarkMellors]

[http://jellyandmarshmallows.co.uk/ Mark’s website]

{{clear}}

-----
{{FooterFB}}

[[Category:Racers]]

Rule Zero

2025-08-17T12:33:22Z

Markmellors: added info

{{Racer
|ProfilePic=RuleZeroProfile.jpg
|BuiltBy=Mark Mellors
|Theme=Fire Engine
|FirstRace=Scrumpy Cup 2018
|CurrentStatus=Active
|Motor=Vevor/Mophorn 1800W
|ESC= Vevor/Mophorn 1800W
|Battery=12S (48V) of EIG CO20B Lithium Ion 20Ah cells
|Transmission=13:80 6mm Chain
|Contact=@MarkMellors
}}

==Background==
[[File:RuleZeroOrigin.jpg|thumb|left]]
The name comes from the 0th rule of Hitchin Hackspace - Rule Zero - Do Not Be On Fire!
The theme of the body is based around a fire engine from local Hertfordshire Fire & Rescue, constructed from a PVC pipe frame, ABS sheets, and printed vinyl

{{clear}}

==Construction==
The chassis is based on a mobility scooter, with the main changes being:

* removing the seat and replacing it with one from a drift trike
* rear transaxle replaced with a solid (19mm 304 SS) rear axle, with a hydraulic disk brake and drive sprocket
* handle bars converted into a steering wheel
* steering goemetry slightly modified to give some trail, and reduced sensitivty

The wheels and tyres are from karts. the front wheels had their bearings replaced to match the scooters spindles. I machined adapters for the rears to bolt to the keyed rear axle.

The thrtotle and brakes are actuated by pedals. the pedals pull cables which turn a spring-loaded pot for the throttle, or the (hand) brake lever from the bike hydraulic brake.

The bodywork is PVC tube covered in heat-formed recycled ABS sheet, and vinyl wrapped. The bumpers are ~70mm HDPE water pipe, also heat bent to form the rounded corners.

Build videos:

https://www.youtube.com/watch?v=_2zzuY2yD6Q

https://www.youtube.com/watch?v=Uy0oinC1whU

https://www.youtube.com/watch?v=M5zO_7-MICA

https://www.youtube.com/watch?v=xP7fHLw0Fgw

{|style="margin: 0 auto;"
| [[File:Placeholder.jpg|thumb|alt=Wooden chassis]]
| [[File:Placeholder.jpg|thumb|alt=Wooden body]]
| [[File:Placeholder.jpg|thumb|alt=Steering components]]
|}

{{clear}}

==Powertrain==
10-12Ah, 12S Multistar lipos from Hobbyking, or custom 20ah Eig cell packs with BMS. (details?)
2kw scooter motor & 1.5kw ebike controller. (details?)
Source: https://vevor.co.uk/brushless-dc-motor-c_11227/48v-1800w-brushless-motor-controller-throttle-grip-powerful-quad-p_010700081791

The reduction is 13:80 with 6mm chain. The chain's certainly strong enough, but quite sensitive to misalignment, and keeps coming off, especially in reverse...

[[File:RuleZeroMotor.jpeg|thumb|right]]

{{clear}}

==Other Features==
[[File:Placeholder.jpg|thumb|right]]
Sound?
Lights?
Remote steering?
Great on two wheels!

{{clear}}

==Race Results==
{{VehicleResultsTable}}
{{clear}}

==BOM==
BOM for original build: https://docs.google.com/spreadsheets/d/13LH8uYXNQv7zIFvCdWGZtBPLQ-ZO0K0W6goraVPJs_k/edit?usp=sharing

{{clear}}

==Limitations==
Slicks have limited grip in mud, but does corner well in almost all other conditions.

{{clear}}

==Resources==
Twitter Account [https://twitter.com/MarkMellors @MarkMellors]

[http://jellyandmarshmallows.co.uk/ Mark’s website]

{{clear}}

-----
{{FooterFB}}

[[Category:Racers]]

FootFest 2025

2025-08-17T12:07:55Z

Markmellors: /* Results */

{{Event
|EventPic=FootFest25.jpg
|Date=8-10th August 2025
|Location=FootFest, Sudbury
|EventType=Race
}}

==Background==

{{clear}}

==Entrants==
Full Size Hacky Racer:
*[[CYBR TRK]] - Chris
*[[Rule Zero]] - Mark
*[[Hacky Camper]] - Helen/Paul

Robotics:
*Test-bed - Brian Cortiel
*Rosberg - Mark Mellors

==Scrutineering==
Full Size Hacky Racer:
*3 cars were submitted for scrutineering, all of which passed.
{{clear}}

{{clear}}

==Results==
{{PublishRaceResult|vehicle=Rule Zero|driver=Mark|position=1|class=00 - Full Size - Piloted}}
{{PublishRaceResult|vehicle=CYBR TRK|driver=Chris|position=2|class=00 - Full Size - Piloted}}
{{PublishRaceResult|vehicle=Hacky Camper|driver=Helen/Paul|position=3|class=00 - Full Size - Piloted}}

{{PublishRaceResult|vehicle=Hacky Camper|driver=Helen/Paul|position=1|class=90 - Moxie}}
{{PublishRaceResult|vehicle=Rule Zero|driver=Mark|position=2|class=90 - Moxie}}
{{PublishRaceResult|vehicle=CYBR TRK|driver=Chris|position=3|class=90 - Moxie}}

{{PublishRaceResult|vehicle=Rule Zero|driver=Mark|position=1|class=99 - Overall}}
{{PublishRaceResult|vehicle=CYBR TRK|driver=Chris|position=2|class=99 - Overall}}
{{PublishRaceResult|vehicle=Hacky Camper|driver=Helen/Paul|position=3|class=99 - Overall}}

{{PublishRaceResult|vehicle=Test Bed|driver=Brian Cortiel|position=1|class=20 - Robotics - A2 Autonomous}}
{{PublishRaceResult|vehicle=Rosberg|driver=Mark Mellors|position=2|class=20 - Robotics - A2 Autonomous}}

{{EventResultsTable}}

{{clear}}

==Incidents==
No safety incidents occurred at the event.
{{clear}}

==Gallery==
[[File:FootFest25.jpg|center|800x800px|[[File:GNC251.jpg|center|800x800px]]]]
[[File:FootFest25Track.jpg|center|800x800px|[[File:FootFest25Track.jpg|center|800x800px]]]]
Photo credits Dr Footleg and Brian Cortiel
{{clear}}

-----
{{FooterFB}}

[[Category:Events]]
[[Category:Championship 2025]]

FootFest 2025

2025-08-17T12:07:00Z

Markmellors: added robot names

{{Event
|EventPic=FootFest25.jpg
|Date=8-10th August 2025
|Location=FootFest, Sudbury
|EventType=Race
}}

==Background==

{{clear}}

==Entrants==
Full Size Hacky Racer:
*[[CYBR TRK]] - Chris
*[[Rule Zero]] - Mark
*[[Hacky Camper]] - Helen/Paul

Robotics:
*Test-bed - Brian Cortiel
*Rosberg - Mark Mellors

==Scrutineering==
Full Size Hacky Racer:
*3 cars were submitted for scrutineering, all of which passed.
{{clear}}

{{clear}}

==Results==
{{PublishRaceResult|vehicle=Rule Zero|driver=Mark|position=1|class=00 - Full Size - Piloted}}
{{PublishRaceResult|vehicle=CYBR TRK|driver=Chris|position=2|class=00 - Full Size - Piloted}}
{{PublishRaceResult|vehicle=Hacky Camper|driver=Helen/Paul|position=3|class=00 - Full Size - Piloted}}

{{PublishRaceResult|vehicle=Hacky Camper|driver=Helen/Paul|position=1|class=90 - Moxie}}
{{PublishRaceResult|vehicle=Rule Zero|driver=Mark|position=2|class=90 - Moxie}}
{{PublishRaceResult|vehicle=CYBR TRK|driver=Chris|position=3|class=90 - Moxie}}

{{PublishRaceResult|vehicle=Rule Zero|driver=Mark|position=1|class=99 - Overall}}
{{PublishRaceResult|vehicle=CYBR TRK|driver=Chris|position=2|class=99 - Overall}}
{{PublishRaceResult|vehicle=Hacky Camper|driver=Helen/Paul|position=3|class=99 - Overall}}

{{PublishRaceResult|vehicle=|driver=Brian Cortiel|position=1|class=20 - Robotics - A2 Autonomous}}

{{EventResultsTable}}

{{clear}}

==Incidents==
No safety incidents occurred at the event.
{{clear}}

==Gallery==
[[File:FootFest25.jpg|center|800x800px|[[File:GNC251.jpg|center|800x800px]]]]
[[File:FootFest25Track.jpg|center|800x800px|[[File:FootFest25Track.jpg|center|800x800px]]]]
Photo credits Dr Footleg and Brian Cortiel
{{clear}}

-----
{{FooterFB}}

[[Category:Events]]
[[Category:Championship 2025]]

Batteries

2025-07-10T09:19:27Z

Markmellors: /* DIY pack for Rule Zero */ added link to cells

==General==
*Most people running 2x 6S packs expect to burn 4000-6000mAh per pack in a 5 minute race.
*You will have <1hr to recharge between races. Typically 45 mins.
*Charging a pair of 6S batteries is typically easier than charging a 12S. 6S batteries can be connected in series to race.
*Safe handing and charging processes must always be followed in the pits, including use of lipo bags.
*Terminals MUST be properly and securely insulated, especially before the fuse.
*You may not be allowed to race if you have not taken appropriate safety precautions.

{{clear}}

==Li-Po==
*Hobbyking
*CNHL

{{clear}}

==Li-Ion==
===DIY pack for [[CYBR TRK]]===
*Cells are reclaimed Samsung 21700 30T from NKON.
*Spot welded using an eBay China special PCB and handheld electrodes.
**PCB needed some solder reinforcement as pictured where tracks started to cook.
**Instructions called for ~80Ah battery. I ended up needing a 100Ah (1000cca) in parallel with slightly crusty 36Ah (330cca) being constantly topped off by a PSU to >14v for decent welds.
**Electrodes need to be regularly redressed. Not too blunt, not too pointy. Like a small ball point pen seems to work.
**Did try using rewound microwave oven transformer, pulsing a solid state relay. Seemed like not enough current for too much time. Electrodes would melt without welding the nickel at all.
*Initially planned to use 0.3mm nickel strip for high current handling but getting pure 0.15mm to weld was tough enough, so that's what I went with. It's in links of 3 parallel rungs which seems to stand up to the task.
*BMS -
**Cheap BMS and supposedly rated for 40A continuous, 70A peak (rules stipulate 30A fuse at 12s). Performance in races was ok, but ran so hot it melted the battery wrap, then later burned out.
**60A DALY BMS much better.
{|style="margin: 0 auto;"
| [[File:LiIonDIYPack.jpeg|thumb|150px|Pack welded]]
| [[File:LiIonDIYBMS.jpeg|thumb|150px|BMS fitted - not ideal]]
| [[File:LiIonDIYBMSebay.jpeg|thumb|150px|Cheap BMS - not ideal]]
| [[File:LiIonDIYWelder.jpg|thumb|150px|Welder PCB, Electrodes, Batteries]]
| [[File:LiIonDIYProbes.jpg|thumb|150px|Welder electrode dressing]]
|}

===DIY pack for [[Rule Zero]]===
*BMS for "big packs": [https://www.aliexpress.com/item/4001111512716.html 12S/45A version of Aliexpress BMS]
*Secondary BMS: [https://www.amazon.co.uk/dp/B08HNF628V/ref=pe_27063361_485629781_TE_item Amazon 14s 40A Lithium Battery Protection Board]
*12S of EIG CO20B Lithium Ion 20Ah cells: https://www.ebay.co.uk/itm/176354184851

{{clear}}

==Used EV==
...

===VW GTE packs===

source: https://zoomev.uk/products/vw-1-086kwh-battery-module-12s-48v

cad model: https://grabcad.com/library/vw-gte-hybrid-battery-module-1 (step file)

To "use" (discharge) them, you just connect your load to the terminals, they're always "on". To (non-balance) charge them, you just give them 50.4V and they accept current. We think the onboard BMS isn't like a standard hobby grade BMS, it won't disconnect the output if the voltage gets too low, the current gets too high or they're about to be overcharged. They may have the code to do that, but need to be connected to a suitable contactor to actually do the switching, there's no compoennts to do load switching on the PCB.
There're a couple of ways you can charge them, which is best depends on your skills, budget and what you already have. the traditional way would be to rip out the pcb from the battery, solder in balance leads and use a standard lipo charger (e.g. a hota D6). Its rare to find 12S capable chargers, so you'd have to electrically split it into two packs, and charge as two 6S packs.
The alternative route, and the way Brian Corteil and Mark Mellors are going, is to use a 50.4V power supply (e.g. https://www.aliexpress.com/item/32829834144.html or https://www.aliexpress.com/item/1005004586061770.html ) with an Arduino and a CAN transceiver. Brian has mostly figured it out but it still needs a laptop and a wiring mess to do the balance charging. We're hoping to get a batch of PCBs made at some point and put it all in a box.

===useful links:===

https://openinverter.org/wiki/VW_Hybrid_Battery_Packs

https://github.com/Tom-evnut/VW-bms

https://secondlifestorage.com/index.php?threads/reverse-engineered-bms-teensy3-2-based-working-with-tesla-module-oem-slaveboard.6248/

https://openinverter.org/wiki/VW_Hybrid_Battery_Packs

https://github.com/jomytec/Teensy-CAN-bus-controller-in-EV

https://leafdriveblog.wordpress.com/2022/03/02/vw-passat-gte-battery-slave-module-connected-to-simpbms/

Brian's balancing code: https://gist.github.com/Corteil/f83ee4708a0838859fcd7e00524226ac

===balance connector:===

TE 1-1670990-1

1355717-1

https://www.digikey.co.uk/en/products/detail/te-connectivity-amp-connectors/1355717-1/2187722

==Chargers==
*Turnigy Accucel / HTRC C150 - Runs directly from mains, only just charges packs between races at 1hr intervals
*HOTA D6 Pro - Pro runs directly from mains, little faster than C150, popular in the pits.
**HP 12V server power supplies are a popular option to supply HOTA DC chargers. (e.g DPS-800GB)
**Note: runs faster with DC supply >=24V.
*SKYRC Extreme 400W Dual Charger

{{clear}}

-----
{{FooterFB}}

[[Category:Knowledge Base]]

OrganisingAnEvent

2025-03-18T21:48:44Z

Markmellors: more formatting

'''Space'''

Track:

* Absolute minimum: 10*20m
* Ideal: 25*50m
* Massive: 50*100m great for driving but poor racing unless we get 20+ entries:

Track can be sand, dirt, grass, concrete or tarmac. If it's grass, the grass will get torn up. Loose or soft surfaces need to be reasonably flat.

'''Pits, including charging'''

* Absolute minimum: 2*2m per entry
* Reasonable: 2*4m per entry
* Ideal: 4*4m per entry

Pits need to be covered. We can bring up to four of 4.5*4.5m pit tents.
Track must be marked by cones, plastic totes, curbs, straw bales, traffic barriers (in reverse preference order).

Need 2m between track barrier and crowd barrier.

Crowd barrier can be net and fence pins or metal crowd barriers. Single line of hazard tape is minimum but needs to be only used on low traffic areas (e.g. around pits), as children will dip under and get on track if used as a primary crowd barrier around the track.

On hard surfaces, either the track barrier or crowd barrier need to be fairly weighty to arrest out of control karts. On soft surfaces, the net and fence pins are the bare minimum.In lieu of payment, we usually ask that host events provide the track and crowd barriers. If budget is tight, we can provide barriers for soft surfaces.

'''Power:'''

* Minimum: 2kw total (but very challenging to manage)
* Generally adequate: 6kw total
* Ideal; 1kw per entry

We will race in any weather, provided the track doesn't get so boggy/slippery that we can't get around.

'''Health, safety and insurance'''

We're covered by Motorsport uks insurance, and follow their regulations, as well as our own. All racers are tech checked and driver competency assessed.

We will bring basic first aid materials, and suitable fire extinguishers. We ask that host events provide professional medical first responders, though it's not essential. Similarly, we will manage the crowd using the barriers and PA, but we may call on the host events for support if the crowd gets dangerous or disruptive.

OrganisingAnEvent

2025-03-18T21:47:27Z

Markmellors: formatting

'''Space'''

Track:

<nowiki>*</nowiki>Absolute minimum: 10*20m

<nowiki>*</nowiki>Ideal: 25*50m

<nowiki>*</nowiki>Massive: 50*100m great for driving but poor racing unless we get 20+ entries:

Track can be sand, dirt, grass, concrete or tarmac. If it's grass, the grass will get torn up. Loose or soft surfaces need to be reasonably flat.

'''Pits, including charging'''*Absolute minimum: 2*2m per entry

<nowiki>*</nowiki>Reasonable: 2*4m per entry

<nowiki>*</nowiki>Ideal: 4*4m per entry

<nowiki>*</nowiki>Pits need to be covered. We can bring up to four of 4.5*4.5m pit tents.
Track must be marked by cones, plastic totes, curbs, straw bales, traffic barriers (in reverse preference order).

<nowiki>*</nowiki>Need 2m between track barrier and crowd barrier.

<nowiki>*</nowiki>Crowd barrier can be net and fence pins or metal crowd barriers. Single line of hazard tape is minimum but needs to be only used on low traffic areas (e.g. around pits), as children will dip under and get on track if used as a primary crowd barrier around the track.

<nowiki>*</nowiki>On hard surfaces, either the track barrier or crowd barrier need to be fairly weighty to arrest out of control karts. On soft surfaces, the net and fence pins are the bare minimum.In lieu of payment, we usually ask that host events provide the track and crowd barriers. If budget is tight, we can provide barriers for soft surfaces.

'''Power:'''

<nowiki>*</nowiki>Minimum: 2kw total (but very challenging to manage)

<nowiki>*</nowiki>Generally adequate: 6kw total

<nowiki>*</nowiki>Ideal; 1kw per entry

We will race in any weather, provided the track doesn't get so boggy/slippery that we can't get around.

'''Health, safety and insurance'''

<nowiki>*</nowiki>We're covered by Motorsport uks insurance, and follow their regulations, as well as our own. All racers are tech checked and driver competency assessed.

<nowiki>*</nowiki>We will bring basic first aid materials, and suitable fire extinguishers. We ask that host events provide professional medical first responders, though it's not essential. Similarly, we will manage the crowd using the barriers and PA, but we may call on the host events for support if the crowd gets dangerous or disruptive.

OrganisingAnEvent

2025-03-18T21:45:44Z

Markmellors: formatting

Space

Absolute minimum: 10*20m

Ideal: 25*50m

Massive: 50*100m great for driving but poor racing unless we get 20+ entries:

Track can be sand, dirt, grass, concrete or tarmac. If it's grass, the grass will get torn up. Loose or soft surfaces need to be reasonably flat.

Pits, including charging

Absolute minimum: 2*2m per entry

Reasonable: 2*4m per entry

Ideal: 4*4m per entry

Pits need to be covered. We can bring up to four of 4.5*4.5m pit tents.
Track must be marked by cones, plastic totes, curbs, straw bales, traffic barriers (in reverse preference order).

Need 2m between track barrier and crowd barrier.

Crowd barrier can be net and fence pins or metal crowd barriers. Single line of hazard tape is minimum but needs to be only used on low traffic areas (e.g. around pits), as children will dip under and get on track if used as a primary crowd barrier around the track.

On hard surfaces, either the track barrier or crowd barrier need to be fairly weighty to arrest out of control karts. On soft surfaces, the net and fence pins are the bare minimum.In lieu of payment, we usually ask that host events provide the track and crowd barriers. If budget is tight, we can provide barriers for soft surfaces.

Power:

Minimum: 2kw total (but very challenging to manage)

Generally adequate: 6kw total

Ideal; 1kw per entry

We will race in any weather, provided the track doesn't get so boggy/slippery that we can't get around.

Health, safety and insurance

We're covered by Motorsport uks insurance, and follow their regulations, as well as our own. All racers are tech checked and driver competency assessed.

We will bring basic first aid materials, and suitable fire extinguishers. We ask that host events provide professional medical first responders, though it's not essential. Similarly, we will manage the crowd using the barriers and PA, but we may call on the host events for support if the crowd gets dangerous or disruptive.

OrganisingAnEvent

2025-03-18T21:44:16Z

Markmellors: first draft of brain dump notes

Space
Absolute minimum: 10*20m
Ideal: 25*50m
Massive: 50*100m great for driving but poor racing unless we get 20+ entries:

Track can be sand, dirt, grass, concrete or tarmac. If it's grass, the grass will get torn up. Loose or soft surfaces need to be reasonably flat.

Pits, including charging
Absolute minimum: 2*2m per entry
Reasonable: 2*4m per entry
Ideal: 4*4m per entry
Pits need to be covered. We can bring up to four of 4.5*4.5m pit tents.
Track must be marked by cones, plastic totes, curbs, straw bales, traffic barriers (in reverse preference order).
Need 2m between track barrier and crowd barrier.
Crowd barrier can be net and fence pins or metal crowd barriers. Single line of hazard tape is minimum but needs to be only used on low traffic areas (e.g. around pits), as children will dip under and get on track if used as a primary crowd barrier around the track.
On hard surfaces, either the track barrier or crowd barrier need to be fairly weighty to arrest out of control karts. On soft surfaces, the net and fence pins are the bare minimum.In lieu of payment, we usually ask that host events provide the track and crowd barriers. If budget is tight, we can provide barriers for soft surfaces.

Power:
Minimum: 2kw total (but very challenging to manage)
Generally adequate: 6kw total
Ideal; 1kw per entry

We will race in any weather, provided the track doesn't get so boggy/slippery that we can't get around.

Health, safety and insurance
We're covered by Motorsport uks insurance, and follow their regulations, as well as our own. All racers are tech checked and driver competency assessed.
We will bring basic first aid materials, and suitable fire extinguishers. We ask that host events provide professional medical first responders, though it's not essential. Similarly, we will manage the crowd using the barriers and PA, but we may call on the host events for support if the crowd gets dangerous or disruptive.