

Here is the the making of concrete rings - looks like a pretty interesting project if you wanted to make your own version too.
The making of... concrete rings
Recent Entries
- CRAFT weekly recap
- 8-bit touch-sensitive handheld
- Cigar box music player
- The 'bike tree', an automatic storage system for cycles, can hold up to 6,000 bikes
- Building a folding table
- Maker Shed weekly wrap-up
- The Chumby has landed!
- Brainwave sofa by Unfold & Lucas Maassen
- Full MIDI drumset with Guitar Hero and Rock Band drums
- Hole punched art
Comments
Oldest comments listed first.
Leave a comment
Subscribe to MAKE Magazine!
Subscribe today, save 42% and get web access to MAKE free. MAKE Digital Edition is available only to subscribers.
$34.95 / 1 year
(4 Quarterly Issues)































I thought concrete caused irritation after prolonged contact with skin...
Reply to this comment
It does, but I think that's why it they have a metal insert (besides to provide tensile strength). It's interesting that they don't seal the cement after allowing it to hydrate for 20 days (hydrating for 28+ days allows the concrete to reach maximum strength).
Reply to this comment
It is probably obvious, but one should wear gloves when mixing the concrete as the basic nature of cement will burn your hands.
Reply to this comment
The sizing guide seems to be off a bit, or maybe I just screwed up. In any case I've been trying to exchange for the correct size for weeks now. They simply ignore emails, and that's after you find an address that works. Really lousy customer service, so I thought I should give a heads up.
Unfortunately I don't know who else is carrying them, the rings are very cool.
Reply to this comment