gpbullock asked:


Upgrading my shop by buying a cnc mill so I can produce in house. However, I want to be able to mill steel, stainless, titanium and aluminum. The steel and titanium I know are lower rmp speeds for milling due to hardness. What is the minimum spindle rpm allowable so that I can buy a mill that will be capable of milling all of the above listed material?

DanKush asked:


I want to build my own cnc machine, and am not having any troubles with the design or mechanics of it, but I am unsure of what exactly the controller does and how it does it. Is there port progamming involved, how does this control the step motors. Any help out there?

Kevin O asked:


I’d like to cut some designs in aluminum diamond plate and I was curious to know if a CNC router with a laser or plasma torch could do the job. I know a waterjet works pretty well, but the price of the machine is currently not in my budget. Thanks!

Figato asked:


It is a 304 stainless disk with a threaded hole.
Fairly large 58mm wide by 20mm high.
That’s about it.

For a quantity of 100 I’m getting a quote of 11.49 ea.
I know metals are expensive now, but As per the shop, only about $4.50 of that is the steel.
Seems like $7 ea. is A LOT for machining.

Is this too much to pay?
What is a fair price?

Essam G asked:


How I can build my own CNC machine and operate it by computer?

liners asked:


Tell the calculation briefly with example.

Brewtus asked:


Does anyone know of a place that I can get used cnc mills that are big enough to make car rims for cheap? I don’t need anything that cuts very fast. Speed doesn’t matter, cost does.

Grizzly B asked:


I need to machine cylinders - a lot of them - roughly two and a half inches in diameter and roughly 8 inches long (the actual specs are quite tight, with additional specs on surface finish and perpendicularity along with the dimensions). The material is a ceramic, soft as ceramics go. We start with an oversized rough cylinder and currently machine them in a multi-step process on a ceramic saw (to rough out the length) and two lathes (one for diameters, another for end finishing), but we’d like to do the whole process in one machine. I think I can do it with a CNC mill, but I don’t know enough about them to know what to look for in a machine. Can anybody give me any advice?

asked:


i been running a panel based cnc (weeke) for 3 years just wondering what the average hourly rate is?

cookiesnstarz@verizon.net asked:


I’m 12 and my dad is planning on buying me one for $500. He said its really easy to make money on. What else do i need for the machine? Any programs beside Mastercam or does that not work. We have all the drill bits i think.