LEtsGO 2 - Revision history

Shakesc at 22:36, 9 February 2025

2025-02-09T22:36:50Z

← Older revision		Revision as of 22:36, 9 February 2025
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	{{Racer\|ProfilePic=l2_overview.jpg\|BuiltBy=Chris Shakespeare\|Theme=Lego Racer\|FirstRace=???\|CurrentStatus=~~Active~~\|Motor=2 x BLDC 1500W mototrs\|ESC=2 x e-bike controller 1500W\|Battery=2 x 6S 12Ah in series\|Transmission=??:?? Chain\|Contact=??}}		{{Racer\|ProfilePic=l2_overview.jpg\|BuiltBy=Chris Shakespeare\|Theme=Lego Racer\|FirstRace=???\|CurrentStatus=Retired\|Motor=2 x BLDC 1500W mototrs\|ESC=2 x e-bike controller 1500W\|Battery=2 x 6S 12Ah in series\|Transmission=??:?? Chain\|Contact=??}}

	== Background ==		== Background ==

Cstubbs at 16:24, 29 October 2024

2024-10-29T16:24:32Z

← Older revision		Revision as of 16:24, 29 October 2024
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	{{clear}}		{{clear}}

	~~== Awards ==~~
	~~EMF Camp 2024 - 1st in racing{{clear}}~~
	~~- need to note different in letsgo vs letsgo2 in results!~~

	== BOM ==		== BOM ==

Cstubbs at 12:30, 29 October 2024

2024-10-29T12:30:46Z

← Older revision		Revision as of 12:30, 29 October 2024
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	[[File:Placeholder.jpg\|right\|thumb]]		[[File:Placeholder.jpg\|right\|thumb]]
	Changing the wheel/tyre changes the ratio of the gearing by a few percent which can be handy{{clear}}		Changing the wheel/tyre changes the ratio of the gearing by a few percent which can be handy{{clear}}


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

	== Awards ==		== Awards ==
	EMF Camp 2024 - 1st in racing{{clear}}		EMF Camp 2024 - 1st in racing{{clear}}
			- need to note different in letsgo vs letsgo2 in results!

	== BOM ==		== BOM ==

Shakesc: first edit of page

2024-10-25T08:32:56Z

first edit of page

New page

{{Racer|ProfilePic=l2_overview.jpg|BuiltBy=Chris Shakespeare|Theme=Lego Racer|FirstRace=???|CurrentStatus=Active|Motor=2 x BLDC 1500W mototrs|ESC=2 x e-bike controller 1500W|Battery=2 x 6S 12Ah in series|Transmission=??:?? Chain|Contact=??}}

== Background ==
[[File:LEtsGO_BakingTrays.jpeg|left|thumb]]
Theme is to look like Lego blocks. It uses baking trays sprayed in various bright coloured car paints

It builds on the original Jeepney and LEtsGO, trying to resolve some of the issues that they had

See more of the build log on https://www.facebook.com/JacklsRobots<nowiki/>{{clear}}

== Construction ==
How is the chassis constructed?

Majority of the chassis is constructed from 20mm x 20mm box section. Its fully welded together

The box section used allows a level of flex over rough surfaces that is beneficial
{| style="margin: 0 auto;"
|[[File:L2_chassis.jpg|alt=Brake Disc|thumb]]
|}
Steering? Geometry?

Steering is direct in the style of a go-kart

There is about 8 degrees of negative camber and around 8 degrees of positive caster

Where are your wheels, tyres, hubs, axles from?

Majority of components are from mini ATVs

It uses tyres13x5.00-6 with a knobbly pattern.

The axle is a cutdown single axle from an ATV. This has been cut in half and turned down.

The hubs are bored out and welded onto the shaft. No chance of moving around

How do your brakes work?

Each axle has a brake disc with a hydraulic braking system using components from an ATV

The master brake cylinder is actuated directly from the brake pedal
{| style="margin: 0 auto;"
|[[File:L2_rear.jpg|alt=Brake Disc|thumb]]
|}
{{clear}}

== Powertrain ==
Motor

Uses twin 1500W BLDC motors. The chain tension can be simply adjusted by slacking a couple of easy access bolts.

ESC

2 x Whitebox 1500W e-bike controller. These are not modified as the Hacky runs close to the fuse limit with 3Ah consumed per race

It has been run on 2 x 2000W controllers with a 40A fuse. It was a blast but not race legal.

Details of chain and gear ratio?

11: 64 sprockets through a chain

Do you have a diff?

No diff fitted, the dual motors act as an electronic diff.

Where is your battery from?

Hobbyking but now consistently out of stock{{clear}}

== Other Features ==
[[File:Placeholder.jpg|right|thumb]]
Changing the wheel/tyre changes the ratio of the gearing by a few percent which can be handy{{clear}}

== Awards ==
EMF Camp 2024 - 1st in racing{{clear}}

== BOM ==
{{^|Generate tables here - https://www.tablesgenerator.com/mediawiki_tables}}
{| class="wikitable"
!Item
!Cost
!Total
|-
|Motor
|£xx
|£xx
|-
|Wheels
|£xx
|
|-
|...
|...
|
|}
{{clear}}

== Limitations ==
The front suspension is helpful but can suffer from too much dive on sharp turn ins.{{clear}}

== Resources ==
More detail on https://www.facebook.com/JacklsRobots/<nowiki/>{{clear}}
----{{FooterFB}}