These machines are great learning machines.! . . They learn you that operating a small CNC doesn't take long to learn. They also learn that you just wasted £500 + on a tool that is limited to scratching tin foil or icing cakes.!! . . . . There's a big difference between scratching and cutting correctly.
Cost of owner ship is more than the machine it's self, wasted time, wasted tools, wasted material, wasted hair all come into the equation. These machines by there very design (ie Weak and slow) can not avoid wasting time and tools.
They are so poorly built using cheap components that they are limited in the feeds they can achieve. This means at best they may just meet the requirements for correct feed rates so that tools don't wear prematurely. But In majority of cases they can't reach any where near whats required so tools wear out very quickly shortening tool life.
Tool wear leads to tool breakage so wasted time, material and tool are the outcome. Often it's blamed on being new and put down to learning.
Fact is It's not all down to this and mostly down to the fact the machine can't reach the correct feed rates where tool isn't stressed.!
Those that can are constantly operating at there maximum capabiltys which wears the cheap nasty bearings etc. So machine quickly becomes sloppy and baggy. This causes lock ups etc in short order with resulting hair pulling sessions.
And I won't even go into the Junk electronics.!!
So not all chinese sourced machines aren't built equal.
I can see the salient point here isn't getting across, not everyone has time to either research or build a machine & not everyone wants to mill metals. A secondhand machine can still perform just fine within its boundaries & yield great results (i.e. I'm a happy user) ...and even if it doesn't, you simply sell it on to some other sucker & blame mycncuk for not warning you about the shite on the market ....no loss! :-)
if you are very keen & knowledgeable on hammers, then everything begins to look like a nail, but it's horses for courses blah blah
Now then about that Hummer you've got for sale...can I park it ok at the local Lidl?
Last edited by HankMcSpank; 19-05-2015 at 03:23 PM.
Point is not all about building. It's about buying something that is fit for purpose. Be that new or secondhand. Most buy these machines with the purpose of cutting multi materials, Woods, plastics, etc and they can't even do that correctly without stressing the machine. Anything that is constantly stressed cracks sooner rather than later and these machines at best are more stressed than Air traffic controller.!
But I see we'll just have to agree to disagree and let the good folks take there own route. Hopefully they'll listen to experience and make use of it.
I had a look at the website for this piece of plastic and couldn't find a contact address or number. If I were spending £500 on anything, I would like to know where they are. I agree that the machine does not represent a wise investment, but there again neither did my MD A4 trapezoidal, but after a lot of fettling and modification, it will cut straight lines, rectangles are yet to be sorted.
There's an awful lot of machines on the market and a lot of awful machines too. I wonder if any of these V-groove skateboard based producers would be willing to put forward one of their offerings for test and critical review ? I suspect not
So yeah, i know first hand what crap is and what foul marketing is.`
Plus i think most of you guys are totally mistaken about CNCs . People think that buying crap machines is learning and "having the opportunity to do sth at home" . No. Its not like that. HAAS and similar are real machines, and the best builds you have seen around is having the opportunity to learn and try at home level.
but there again neither did my MD A4 trapezoidal, but after a lot of fettling and modification, it will cut straight lines, rectangles are yet to be sorted
(incidentally, I wasn't saying my machine's electronics were special, but simply to illustrate that not all machines are supplied with totally woeful electronics ...that's why I reckon some should look for a secondhand machine with a reasonable spec to meet their needs)
http://www.tinyurl.com/oflyau9 (forum member Clanzer's website, who churns out many CNC products, for example ... http://www.ukcnc.info/forums/2012cncmachine.php)
Last edited by HankMcSpank; 19-05-2015 at 09:21 PM.
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