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C13 Slotted Ruler Set | EDC Measurement Tools

Created by Carbon13

Ultra thin, flexible and tough, C13's latest carbon ruler set is our best yet! Packed with features, ready for anything.

Latest Updates from Our Project:

Secret Reward Just Unlocked — 2 Rulers for £16
9 months ago – Wed, Jul 02, 2025 at 04:12:01 AM

Launched yesterday, C16 Curved is the very first project from LumiRule — a new venture by a few of the original team behind our early carbon fibre tools.

It’s ultra-thin (just 0.5mm), dual-sided, and made from glossy 3K carbon fibre — and it’s already fully funded within hours.

As a thank you for supporting our past projects and making this journey possible, the LumiRule team has created a SECRET REWARD just for returning backers:

🎁 TWO rulers for just £16 — exclusively via this private link:
👉 Access the secret reward

The campaign is only live for one week, so don’t miss out.

Thanks again for being part of the C13 and now LumiRule story — we hope you’ll join them for this next chapter.

— The C13 Team

🚀 A New Direction from the Original C13 Creators
10 months ago – Thu, Jun 19, 2025 at 01:46:40 PM

Hi everyone,

Over the years, you’ve helped bring our carbon fibre tools to life — and we’re so grateful for your support.

Now, some of us from the original team are branching out with a new independent venture: LumiRule.

As the name hints, we’re still innovating in precision measuring — but we’re starting with something familiar: a refined carbon fibre ruler, now with scales on both sides and a size perfect for your notebook launching for 7 DAYS ONLY.

This first launch is about proving our processes — but the ideas to follow are much more ambitious.

If you’ve liked what we’ve built before, we think you’ll love what’s next:

👉 https://www.kickstarter.com/projects/lumirule/c16-curved-the-ultra-thin-carbon-fibre-ruler-redefined

Thanks again for being part of the journey — the remaining Carbon13 team are still doing great work, and for those of us striking out on our own, we hope you’ll join us for this exciting new chapter.

— The LumiRule Team

TRACKING NUMBERS SENT!
almost 4 years ago – Mon, Apr 25, 2022 at 03:08:30 AM

Hello everyone,


This is a very quick message to tell you that the tracking numbers for your orders have been uploaded to BackerKit and will be on their way to your inboxes shortly! 


We hope you love your Slotted rulers and join us on future campaigns! 


/ C13 Team


Orders Shipped!
almost 4 years ago – Fri, Apr 22, 2022 at 04:00:20 PM

Thank you all for your patience and apologise for our radio silence! This year is flying past. All of your orders have been shipped by our new warehouse partner and tracking will be updated very soon! 


We’re excited for you to receive these, please be sure to comment when you do! 


If anyone is after a Geometry Set in the mean time - they are back in stock over at AmazonUS, just search for carbon geometry set.


/ C13 Team

Shipping Starts This Week!
about 4 years ago – Mon, Feb 21, 2022 at 09:16:44 PM

Hello everyone,


Firstly, apologies for the delay since our last update. All of the stock is ready to go, the address survey completion percentage is extremely high and we are ready to ship.


48hr Countdown:


We just trigged a 48hr process in BackerKit meaning we'll be ready to export, sort and send the list to our shipping company in two days time.  If you need to change your address - now is the time to do it. 


Check your address here: https://c13-slotted-ruler-set-edc-measurement-tools.backerkit.com/


We can't wait to get these out to you!! 


/C13 Team