Thinking of buying one of these little things

[Boyan Silyavski]

http://www.mycncuk.com/threads/8674-...w-diy-machines

[Hopey]

Bearing in mind I'd be looking to pick it up for under 200 quid and buy the break out board etc on ebay just to cut my teeth on you reckon it's not worth the bother?

[Boyan Silyavski]

If you want to cut chocolate then grab it!

Dean said it in the linked thread. But i will say it other way. Use your common sense. Forget for a second that you obviously know nothing about CNC.

Ok, you want to cut wood, plastic and occasional aluminum i assume. Like all of us, nothing new. So you will use say 6mm router bit. You want to cut it precisely, otherwise why the CNC, yes? Say you want a 0.05mm real life precision, cause if you cut with say 0.1mm precision you will not be able to fit together even 2 pieces of wood and plastic, not to speak of aluminum. Imagine now that 6mm carbide router bit and tell me, do you see a stronger part on that machine, meaning part that will not flex earlier than the carbide bit. Cause i don't see. Then how will you cut with that precision, then why the hell would you buy that machine. FYI the carbide bit also will flex if pushed hard. So the conclusion is you need something strong that the totality of play in elements plus flex will result in 0.05mm like maximum. Now go to wikipedia read about plastic, water absobption, flex, temperature deflection and so and you will see what i am saying.

if you just had an idea of the frustration i am trying to save you from...but if you insist then take your chance.