We tortured our product so you don't have to.
That's not marketing. That's genuinely how we approach testing the ChalkBlaster — and it's the reason I'm confident about what we're shipping.
Why we break things on purpose
There are two ways to test a product. You can sit in CAD, model every possible failure mode, and try to engineer solutions to problems you haven't actually seen yet. Or you can build the thing, put it in your hands, and systematically destroy it.
We do the second. Not because the first is worthless — datasheets matter and tolerances matter — but because real-world conditions always reveal something the simulation missed.
The only way to find those things is to find them yourself, before your customers do.
What we actually put it through
- Chalk dust packed directly into the PCB and motor — simulating years of heavy use in minutes
- Full water submersion — we don't claim it's waterproof, but we needed to know where it fails
- Mechanical flex testing on the brush housing and connection points
- Blocked air intake and outlet — forcing the system to manage back-pressure
- Deliberate overheating by running continuously at max power
- Drop testing from crag-realistic heights
Chalk packed into the motor housing — years of use simulated in minutes.
Water submersion — not waterproof by claim, but we needed to know the limit.
Testing beats theorising — every time
The fastest way to learn whether a product works is to model the part, print it in an hour, and spend the rest of the day destroying it. Push it beyond normal use. Find the weak points. Document and measure everything.
We filmed every test session so we could go back and identify exactly when and how each failure occurred.
What customers remember
Customers don't remember specs. They remember whether the thing worked when they needed it to. They remember whether it held up after a year of real use. They remember whether it felt solid in their hands.
That's what the torture testing is actually for. Not to generate a marketing claim. To build something that earns the right to be trusted.
130,000 RPM. Chalk-tested. Water-tested. Ships worldwide from Denmark.
See the ChalkBlaster →Frequently asked questions
Is the ChalkBlaster waterproof?
No — we don't officially claim waterproofing. It handles outdoor humidity and light moisture without issue. Don't take it into rain and you'll be fine.
How durable is the ChalkBlaster?
We stress-tested it specifically for the environment it lives in: chalk dust, outdoor humidity, drops, mechanical flex, and extended use.
What happens if chalk gets inside the ChalkBlaster?
We specifically tested for this by packing chalk dust directly into the motor and PCB housing during development. Clean it out periodically if you're a particularly heavy chalk user.
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