Large CNC Foam Cutter

[Clax]

I would like to know which is the bearing method and transmission of the movement (lead screw, Belt and pulley, etc.) of the large cutters as those of: Croma (www.croma-foamcutter.com), Original Foam (www.originalfoam.com) etc.

If somebody has ideas, schemes or photos in detail, would be very good because I am interested in constructing a machine of 2 by 1.80 meters.

Thanks

Clax

[bayouranch]

I would also like to know

[onthemarc]

In some of the literature I got from Hotwire direct, the bigger CNC foam cutter mentioned they used timing belts.

onthemarc

[Mac T. Knife]

I just got back from looking at the Megaplotter machines, sold by Demand Foam, and Original foam. They are using a timing belt system,,, the belt looks similar to "zip" ties. They are using steel guide rods embedded in the aluminum frame, and shielded bearings in a "V" configuration.

[Clax]

Thanks to all, any ideas how to make a automatic wire tension for diferent left and right cuts?

[Mac T. Knife]

I've been wondering if a weight attched to one end of the wire would work. The weight would have to be inside some sort of tube to keep it from swinging around.

[artsons]

Originally Posted by Clax Thanks to all, any ideas how to make a automatic wire tension for diferent left and right cuts?

I want to do a foam cutter machine and been searching for too many days, cn you share your progress, plans, specific parts, etc.
thanks

[blackbeard52]

Hope this helps....

http://www.8linx.com/cnc/video.htm

Bob

[johnono]

what sort of products are you producing?
I'm getting into large compound crown moldings, only problem is my coating.

[cnccutter]

I use air cylinders to control wire tension on my machine..see pic

[damae]

Nice!

How well does it work? Did you choose that method because it allow you to accommodate large changes in length? Or was there another overriding reason?


Nice aluminum welding too. Somehow I still haven't figured out how to make aluminum stick together, even though I was using a Syncrowave 250.

[cnccutter]

The main reason I went with air cylinders was to keep the same tension on the wire with different heat settings and when I'm doing a angle cut. It works great! (plus I got the cylinders out of the garbage at work) I could use longer cylinders for more angle..My buddy at work does the welding, cost me a dozen donuts...