Also this high lights my point about Cheap low cost ie Chinese machines not being upto to cutting MDF correctly. I know you had chinese machine and that it coundn't cut at the correct feedrates for MDF with Carbide or HSS tooling.
Carbide would require feedrates in the 5mtr/min + region with 100% + DOC. HSS would require less DOC but still would need feedrates in excess of 5mtr/min.
Most low cost machines can't even Rapid at those speeds let alone cut.!!
In both cases Good Chip Vac would be required.
There's difference between managing to cut a material and cutting that material correctly to give best finish and tool life. In DIY arena this isn't so important but from money earning and Business point of few it's VERY important.
Last edited by JAZZCNC; 08-09-2016 at 12:10 AM.
Damn why did I put dust, its because I was thinking of the fact the dust is really bad for your lungs, yes chips ..as always JAZZ glad to know you are around to correct my goof's lol
Yeah like I said in another thread its about managing expectations with these machines. They are really hobbyist -semi pro at best, but if like me I use them to make the speaker box then cover them with nice veneer it works ok. Or like the mini rocking horse I did for a friend it did the tricky bulk work of building up the body panels but needed sanding and painting afterwards. thats where I would slot these machines in tbh
Yep the machine I'm looking at is only 4 mtrs /min @ rapid but I'll have to find a sweet spot :)
Fiction is far more plausible when wrapped around a thread of truth
Nothing great was ever achieved without enthusiasm.
Ralph Waldo Emerson
However and again in my experience with dealing with others the learning curve isn't any where near that new users expect. IME People have lot more potential for learning than they realise, Esp the Older generation.
So what happens is they Buy the Cheap but Limited learning machine only to realise in just few months or even weeks they have out grown the machine. End result is wasted time and money.
Also this is just looking at the BEST OUTCOME scenario. Often because they have bought cheap machine it's riddled with inferior complexity's and plagued with break downs. This results in there first Cnc experience being nightmare or less than enjoyable when really it doesn't need to be.!
On the Craft side of things it makes no difference. There's lower limit and which point the quality suffers and the correction work increases.
IME Cheap inferior machines CANNOT reach this lower limit and result the quality and work required for correction defeats the point of using CNC.
And that's without getting into Excess tool and machine wear.!!
Buying for learning is great but IMO the money is better spent on decent machine and just Commit to the task with being determined to make it work. It's not rocket science or difficult to operate CNC machine.! . . . There's enough Muppets on here manage it Ok and that Includes Me. .
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