C-N-C into Concrete

[slice&dice 2,450]

Seeking comments regarding a computerized router that cuts designs directly into concrete (sidewalks) to create a logo design for companies at their front entrances.

I saw the item on craigslist, it seems really clever.

I don't have any CNC experience, but it seems like this machine will be simple to operate.

What do you folks say?

http://annarbor.craigslist.org/bfd/2954037071.html

[Jay2703 704]

Looks cool.

[mopar691 281]

Junk.

Better up your insurance if your going to do this. What happens when errors? tool breaks? done wrong? pedestrian falls and sues? the list goes on and on.

[Rodger 527]

That might catch on ... BUT IMO , too much expense for the machine to make a possible profit . I don't think that would catch on . 1rst of all , the owner of the property/bldg would have to allow it , so that eliminates anybody leasing since most owners would not want that done IMO . I think most business owners would rather go for a fancy sign instead . I would think if a gravel was inside the carved area , that might create problems if it became dislodged . The cost to remove that concrete area & install new concrete when changing locations etc would also stop most people .

[slice&dice 2,450]

My immediate concern was 'errors' (which we ALL have likely experienced at one point or another with our cutters going haywire suddenly) and there you are, with a slab of concrete and a half-completed etching.

The other problem I envisioned was the permanent nature of this ---- we live in a society where moving around is so commonplace, what are the chances of any given business wanting to engrave their name in stone for eternity?

[Rodger 527]

Yep ! I actually don't think many people would want it on a walk way for reasons already given . Maybe the side of something , but I just don't see a big attraction that gets more than people thinking about it . It might take off like the hoola-hoop did , but most likely not IMO .

[Jeekinz 6]

The ad says it can cut alot of materials. Maybe setup a station so you can do wood or plastic signs but have the concrete option too.

[Jay2703 704]

How do you hold it down? It looks like it would want to move around.

[mabscotthandyman 1,410]

We did that 30 odd years with a stamp when we poured a sidewalk or slab it was almost like offset printing inserting the brass lettering into a holder and clamping down . Some concrete contractors had stamps made up with their name and number to leave a permanent business card in a corner

Dan .