Velociracer

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Velociracer
Velociracer.png
Built By East Essex Hackspace
Theme Jeep 18 - Jurrasic Park
First Race EMF2024
Current Status Active
Motor Vevor 1800W
ESC Stock Vevor controller
Battery 13S 600Ah custom built LiFePO4
Gearbox No Geabox
Contact EEH
View all Racer Profiles


Background

pre modifications
Velociracer.png


East Essex Hackspace built Velociracer to compete in the EMF2024 hackyracer races, using an old broken jeep toy which was subsequently reinforced. The original jeep was badly sun damaged, the plastics mostly broken and the electrics very rusty. When covered in grey primer, we realised it looked a little like Jeep 18 from the Jurrasic Park series, so we reinforced that with red styling and stickers.

The 12v 4x4 drivers were removed and replaced by a single 1800w motor and a go cart axle which was turned on the lathe to accept a mobility scooter diff as it wasn't going round corners.

The battery was built from individual cells, donated by one of the hackspace users who builds motorbikes to beat the electric motorbike land speed records as these were no longer allowed to be used.

Velociracer has twin brakes.

Build Team

Andy Pugh
Nick Reynolds
Tim Neobard (though all his work was cut out as his welding was awful)

Build Log

A comprehensive build log can be found here:

https://docs.google.com/document/d/1RXnXOvgjxtOjpiluZcgzOdxUQpuNqMQJkTBpVb2HkW0/edit?usp=sharing

BOM

Costed

Item URL Quant Price Total Bought?
Vevor 1.8kw Motor, controller & accelerator does not resolve 1 New £87.99 £87.99 Yes
Steel IMS £15.50 for 6m 3 New £15.50 £46.50 Yes
Wheels https://www.ebay.co.uk/itm/173769531988 1 New £56.96 £56.96 Yes
Cart Axle & Hubs 1 Used £67.00 £67.00 Donated
Mobility Scooter Differential 1 Used £25.00 £25.00 Yes
Front steering https://www.ebay.co.uk/itm/256095490881 1 New £48.00 £48.00 Yes
Toy frame 1 Free £0.00 £0.00 Donated
Seat 1 Used £23.45 £23.45 Donated
Stickers https://www.ebay.co.uk/itm/185519913092 2 New £3.56 £7.12 No
Grey plastic primer https://www.amazon.co.uk/dp/B003MI8996 3 New £5.95 £17.85 Yes
Red Paint https://www.amazon.co.uk/Multi-Purpose-Disposable-Plastic-Swiss-Signature/dp/B09L4ZYDQB/ 1 New £5.49 £5.49 No
Silver paint https://www.amazon.co.uk/Professional-Fantastic-All-Purpose-Interior-Household/dp/B07V49Q29Q/ 3 New £6.25 £18.75 No
Chain T8F https://www.ebay.co.uk/itm/173168202070?mkevt=1&mkpid=2&emsid=e90001.m43.l1123&plmtId=700008&mesgId=3024&mkcid=8&ch=osgood&bu=43169555070&trkId=cfaedbe2-40d2-4b10-b6cf-3991ff9a089f&cnvId=700003&recoId=173168202070&recoPos=1 1 New £12.99 £12.99 No

Non Costed

URL Quant Price Total £233.24
Battery Not costed £0.00 £0.00 Donated?
Brake caliper Donated £0.00 Donated
Brake calipers, pair https://www.amazon.co.uk/gp/product/B0C3Y5W151 1 New £29.75 £29.75
Brake master cylinder https://www.amazon.co.uk/gp/product/B07L5FL7BX/ 1 Donated £19.99 £19.99 Donated
Brake master cylinder https://www.ebay.co.uk/itm/195345265996 1 New £13.58 £13.58 Yes
Brake master cylinder pair https://www.ebay.co.uk/itm/305039217745 1 New £17.59 £17.59 Yes
Brake hose https://www.ebay.co.uk/itm/294906355965 2 New £12.99 £25.98 Yes
Brake disk https://www.ebay.co.uk/itm/124145629228 2 New £38.00 £76.00 Yes
Fuse & fuse holder https://www.ebay.co.uk/itm/201688958022 New £4.49 £0.00 Yes
Spare fuses £0.00 Came with 2
8 AWG battery cable https://www.ebay.co.uk/itm/225507706306 2 £12.99 £25.98 Yes
Mylar sheet for insulation https://www.ebay.co.uk/itm/163367584753?var=464991723171 1 New £12.39 £12.39 Yes
Balance lead crimp terminals https://www.ebay.co.uk/itm/263964138890 1 New £3.99 £3.99 Yes
Battery rubber mounts https://www.amazon.co.uk/sourcing-map-Generator-Compressor-D10mmxH10mm/dp/B09BQBRBNZ 1 New £7.99 £7.99 Yes
Anderson connectors https://www.ebay.co.uk/itm/364407411014 4 New £2.86 £11.42 Yes
8AWG lug connectors https://www.ebay.co.uk/itm/134909339293?var=434367346461 2 New £0.57 £1.14 Yes
Internal 50A mid-pack fuse https://www.ebay.co.uk/itm/112598557176 1 New £2.34 £2.34 Yes