Joined: October 1st, 2014, 2:49 pm

June 12th, 2018, 1:03 pm #31

Dude, all machines break. Even our HAAS VF2 shit itself recently. It destroyed its spindle all on its own. Long story short however, HAAS covered the repairs under warranty despite it being out of warranty by over a year.
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Joined: April 15th, 2003, 12:28 pm

June 12th, 2018, 3:16 pm #32

Hmmm.. when it comes to CNC, anything I buy now has servos. The occasional brownout we get here has made that feature (the machine knowing where it was when it cut out) worth its cost many times over. 

Im just dealing with lasers on that, but I would kill for my printers (like the $30K flatbed) to know where they cut out at when connectivity was lost) to have the same abilities. IF I was running any machining centers instead of farming that stuff out, I would be all over it at just 2K more. I think over a year or 2, it would pay for itself. 

Although, entry prices and budgets are very real to me as well. Im looking at a 9K label printer right now. A freaking inkjet label machine... that can spit them out at 8 a second. It will be super helpful, and drop some costs, but thats a heavy investment. 
__
Designer / maker of Jeep gauges and assorted automotive bits and baubles.
TeamADW.com
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Joined: July 10th, 2016, 2:02 pm

June 19th, 2018, 7:47 am #33

One of the things I have always liked about Doc's accounts of his machine refit/repair fits, is that he has never objected to upgrading something well beyond what the manufacturer considered worthwhile.  I find that admirable.

If the Tormach mill perhaps isn't as good as you consider worthwhile, wait.  You haven't seen yet what Doc's probably going to do to it.

I mean, its speed etc will probably never be up to the Haas, but a lot of those flaws you mentioned are fixable.

My relatively pathetic mini-mill came with a LOT of flaws, and I found ways to fix many of them.  Like, a real spindle motor instead of a router, and feedback channels from encoders on the ends of the screws, and filling the broad fiberglass tubes of the frame with epoxy putty, and reinforcing the gantry, and adding a tooltip sensor for setting the z-axis, etc.  I turned it into a much better machine than it was, although I know it'll never be in the same class as real machine tools.  But anyway, the point is that now the results of running it make me happy, and they didn't really when the mini-mill was new.

Doc is starting with something a lot more awesome than I did, and he's got the chops and the machinery already that he doesn't need to limit himself to the relatively minor kind of mods I made.  So don't assume that it's going to remain inadequate, in his hands.  At least, not inadequate to his needs.
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Joined: October 6th, 2014, 11:31 pm

June 19th, 2018, 1:13 pm #34

Snowtroll wrote: As a fat guy, I must say that there's no question. If not cheesecake, what else is the meaning of life?
Why, bacon, of course!!
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Joined: January 1st, 1970, 12:00 am

June 28th, 2018, 9:33 am #35

The CNCCookbook site recently had an article about mods and upgrades for the Tormach machines- stuff like improved coolant nozzles, an inexpensive "wine rack" style tool changer, a lever-actuated drawbar, bigger coolant reservoirs, and so on.

One of the bits, in context with part of the discussion in this thread, is from a fellow that systematically worked to improve his machines' surface finishes, eventually producing finishes almost identical to his Mori-Seiki.

It took some time and analysis, but he eventually chased it down to basically the same issue I was having with my Jet- namely, the pulleys and motor cooling fan needed to be balanced.

The resulting improvement cut his finish time in half, and the pics show very clean and smooth finished parts.

Some of the other mods are kind of a fun read as well.

Doc.
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Joined: January 1st, 1970, 12:00 am

August 10th, 2018, 9:30 am #36

Just a bit of an update: I was doing Friday's comic, and checking YouTube for something interesting to listen to. (Like this live version of Karnivool's We Are. 😁)

And one of the "also recommended" videos that popped up (I can't imagine why 😆 ) was this guy's issues with his Tormach.

Now, he's not the first guy I've run across that has had problems with one, but he is one of relatively few that said the company was basically rude and dismissive to him. Kinda wondering if anyone else has seen the same thing.

Hasn't really turned me off, though, I still plan to get one, although I'm still kinda waiting for them to release pricing on the "MX" series. ('Course, I also tend to wonder about this guy wanting to mill a solid 6" round, 4" thick block of steel on what's really just a glorified desktop mill, and I'd be curious as to what the actual problem with the apparently common backlash issues is.)

And you know the worst part about all this... There's a guy, here in the State, only about 250 miles away, with a HAAS VF-3, plugged in and hot, for $12,000. 😋

But, there's just a couple minor issues: One, it's a 1993 machine with a lot of hours, and a VF-3 is the size of a frikkin' bus. Okay, not really, but compared to, say, a Tormach 770, it's huge. Considering I'm going to have to do some serious jockeying just to fit the weeny little 770 in here, the only way I could jam a VF-3 in here is if I permanently occupied an entire car bay in the garage, which at the moment means I'd have to stack all the other machines. 😁

Doc.
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