A crowd of students, many seen from behind, gathered around a member in a black PL8 shirt who stands in front of the roll-up banner in the courtyard

Vehicle programDrawing 1 of 47

Project
PL8

I started Project PL8 in August 2023. The goal is a street-legal sports car made out of basalt fiber, with students doing the engineering. We're up to 64 people now, and I run both the org and the engineering.

Sheet 02 of 08/Why basalt

Working with basalt

Almost nothing about basalt is standardized for a car structure. There's no number we can look up, so every structural decision needs its own test.

Two students in gloves kneel on a terrazzo floor, stretching a tape measure across a wide roll of olive-coloured basalt fibre fabric and cutting it with shears
PL 01Measuring and cutting our first roll of basalt fabric. The rest of the car depends on whether this material can be laid up cleanly.
A roll of basalt fibre cloth partly unrolled along a corridor floor with two students working at one end
PL 02The roll laid out in a hallway, because we don't have a clean room yet.
Close view of gloved hands cutting basalt fabric with red-handled shears along a measured line
PL 03Cutting a ply to length by hand. How well it's cut here decides the fibre alignment in the finished part.
Two people in gloves kneeling on a terrazzo floor, cutting across a roll of olive basalt fibre fabric along a strip of masking tape with red-handled shears
PL 11We ran masking tape across the roll and cut along it from both ends.

Sheet 03 of 08/Target car

The target car

The main numbers on our spec sheet (weight, power and torque) are all marked "Est." because nothing on this car has been built, weighed or driven yet.

Technical specification sheet for the Project PL-8 vehicle listing estimated dry weight, power, torque, engine, gearbox, chassis, suspension, brakes and wheels
PL 04The target car on one page, with an LS3 V8, a Porsche G86 gearbox, and a triple-layer chassis made of a steel tube frame wrapped in basalt between two composite skins. Every number on it is still an estimate.

Sheet 04 of 08/The team

Running 64 people

Running it is mostly about writing every decision down. The team turns over every year, so a choice that only exists in someone's head gets made again from scratch next spring.

A large university classroom filled with students seated at round tables during a project meeting
PL 09A general meeting. Most of the job is keeping 64 people across twelve teams working toward one car.
Two students in black PL8 shirts standing in front of a table draped in an orange PL8 Project banner, beside a roll-up banner reading We Drive the Future, in an outdoor courtyard
PL 12Our table and roll-up banner set up in a courtyard, with two members in PL8 shirts.
Two students standing behind a table with an orange PL8 Project cover under a white event tent, with the roll-up banner on the left and other organisations' tables behind
PL 14The same banner and table cover under a tent at another tabling event.
A student in an orange shirt standing behind a folding table with a large drink dispenser, cups and trays of cookies, in a parking garage with parked cars behind
PL 15Our table at a car meet in a parking garage. We brought Thai tea and cookies.
About ten students posing together behind the folding table with the drink dispenser and cookies in the parking garage
PL 16A group photo at the table later that night.
Three students in black PL8 shirts behind an orange PL8 Project table talking with two visitors, in a room with car paintings on the walls and parked cars visible through an open doorway
PL 17Talking to visitors at the recruiting table, in a room hung with car paintings.

Sheet 05 of 08/The money

The budget

Most of our 120K budget goes to the powertrain at 38K and the chassis at 36K. The rest of the car splits what's left.

Treemap chart titled Cost Breakdown Per Team showing powertrain 38K, chassis and shell 36K, electronics 8K, suspension 8K, safety equipment 7K, manufacturing 7K, tools 7K and interior 5K
PL 05Where the money has to go. Powertrain at 38K and chassis or shell at 36K take up most of it, and the rest of the car splits what's left.

Sheet 06 of 08/Where it stands

What exists now

So far we've cut basalt fabric, laid up and vacuum-bagged one test panel, and started building our own tooling. There's still no chassis and no car.

Top view of an open cardboard box holding plastic-wrapped packages, a sheet of expanded metal mesh, a roll of orange tape with a metal gauge and valve on it, and a can labelled Miracle Gloss
PL 18A box of supplies with tape, metal mesh, a gauge and a can of Miracle Gloss wax.
An industrial autoclave marked American Autoclave Co. in a university high-bay laboratory, alongside steel test frames and workbenches
PL 06The autoclave we'd need for a cured structural laminate. It sits in a campus lab we don't own.
A dark composite panel on a workbench under translucent pink vacuum bagging film, with clamps and a mallet beside it
PL 08The first panel under vacuum, with the bagging film pulled down over the layup. This is the step where a flat test piece either consolidates or doesn't.
A flat layup on a granite counter under clear bagging film over a pink mesh layer, held with green tape patches, with a round black port fitting, a rubber mallet and yellow clamps beside it
PL 19The bag on the counter with the vacuum port still on it, and a mallet and clamps beside it.
Close view of clear plastic film with folds and wrinkles lying over a red diamond-pattern mesh, with a patch of green tape
PL 20Close up of the clear bag film where it folded over the red mesh.
A cured flat composite test panel held up across someone's lap, showing an even grey green weave and rough trimmed edges
PL 08The first panel, out of the bag. A flat coupon is the cheapest way to find out what the process produces.
A flat dark grey composite panel with frayed fibre edges held across someone's lap, its glossy surface showing a reflection of the person taking the photo
PL 21The same panel at an angle, where the surface picks up the light.
Two students cutting a large panel on a portable table saw in a domestic garage full of tools
PL 07Cutting sheet stock for tooling in a member's garage, which is our shop.
Overhead view of two students guiding a wide board through a table saw together
PL 08It takes two people to feed one panel. Most of our early manufacturing lessons were about fixturing.
Overhead video of two students guiding a light wooden sheet across a portable table saw in a garage
PL 22Two of us pushing a sheet through the table saw.
Four students in black PL8 shirts standing behind a table with an orange PL8 Project cloth

Sheet 07 of 08/Next time

What I would do differently

If I started it again, I'd build a test coupon before an org chart. Pulling a flat basalt panel to failure would tell us more than any sponsor deck.

PL 10Officers at a recruiting table. The logo, the shirts and the table cover are all part of the same identity system I drew.