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  1. #241
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    Yeah, those are a LOT more serviceable than anything newer than that.

    I have those on my 1990 Tornos, but a late 90's Fanuc doesn't look like that at all, and it's only gotten smaller and more complex since then.


    I don't know that stuff - other than looking for missing smoke and telling my EE to put it back in.
    I guess if you have a good one to cheat off of - then you can diagnose that a whole lot easier.

    Good for you tho!
    I'm sure that you can milk that gen drives to the finish line from here eh?




    edit:

    OK, well the top one on this last post is busy.

    -------------------

    Think Snow Eh!
    Ox

  2. #242
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    Ox,

    Good observation! As the top pic in the 2nd post is from the newer MDS- generation drives.

    That board is pretty much “unworkable” but there is a board on the other side that has replaceable caps (and other “big enough” components to replace):





    And yes, having a “good” drive or board to measure up with the multi-meter is immense help in finding fault in the bad drive/board.

    We’re still running an ‘85 QT20N with Mazatrol T2 control every day (big 40”Z box-way beaut), and two ‘88 QT15N’s w/T2 (first generation Mazak’s with linear rails).



    With at least 10 or so more years till the finish line, at this point I’m gonna try to run with these old girls as long as I can keep them chugging.

    We do run two ‘95 QT28’s with T32 and T-Plus controls that Im counting on for sure to give me another productive decade at least.

    Alas though!

    There is big news on the Cathouse front, and I’m looking forward to sharing pics soon. (Just can’t quite yet...CNCToolCat's Cat-House)

    ToolCat

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  4. #243
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    Did y'all study up on this?

    Or just eventually see certain components blown and cheat off of a good one - 'till one day deciding to try your hand at swapping "one of those" out?


    Meaning, can you look at a circuit and git the jist of what it's dooing?
    Are y'all able to look at a component (some common ones) and understand what fer reading that you would expect to see?

    Know that you should or should not see a reading comming out that third leg of an and/or gate or whatnot?

    I would think that would take quite some time to understand all that jazz....
    I'll stick to (600?)/480/240/120/24/12/5.
    THAT'S what I know!


    Your daughter coming to werk for you?


    --------------------

    Think Snow Eh!
    Ox

  5. #244
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    Ox,

    No schoolin’ in electronics for me. I was a machine shop guy in high school, industrial engineering at Vuh-jin-ya Tek.

    Always been fascinated with electronic stuff, so I’ve learned as I went. The internet has been a wealth of knowledge!

    By working with one machine brand since way back at my CM Hoist days in the early 90’s, I’ve managed to learn Yamazaki two-axis lathes and three-axis vmc’s pretty well.

    All the electronics in a Mazak is Mitsubishi, and like most things Japanese each successive generation is just an evolvement of precious generations (generally speaking...CNCToolCat's Cat-HouseCNCToolCat's Cat-House).

    Spare parts are plentiful on older Mazak’s thanks to eBay, and I’ve amassed quite the collection of spare boards, drives, power supplies, servos, encoders, switches, sensors, ...anything electronic that could possibly fail.

    There is some serious satisfaction to be had when you plug in your newly rebuilt electronic component (realizing your rebuild is based on a “shotgun in the dark” approachCNCToolCat's Cat-House) and it fires up and operates like a boss. CNCToolCat's Cat-House

    One tool I need to invest in (badly) is a nice oscilloscope.

    It’s a miracle I’ve been able to repair as much as I have in the past 2-1/2 decades without using an o-scope! CNCToolCat's Cat-House

    ToolCat

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  7. #245
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    Quote Originally Posted by cnctoolcat View Post

    One tool I need to invest in (badly) is a nice oscilloscope.
    The Rigol DS1054 is a great value for shop use at $350. Definitely get a 4 channel model, just debugging encoders uses 3 channels. Don't buy an old clunker. Get a newer one that you can screen capture and share here if you have questions.
    Of course, I'd prefer a $25k LeCroy, but that isn't as "disposable" as the Rigol.
    -Tony

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  9. #246
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    They don’t call me the ToolCat for nothing, brought this little stray home last week:



    She was living in an old abandoned cabin out back from the girlfriend’s condo, and I first saw her about a week earlier while walking SWMBO’d near-blind little kitty Owen (yes he walks like a dog, stays right with you, injured as a kitten, sweet as can be.)



    I’ve had two tom-kitty brothers for about 10 years now, (first 5 at the shop, last 5 here at the house ):



    I lost my little female named Sabrina last year, had her for almost 15 years:



    So, it only made sense to bring this luvable little stray home — she is adjusting well. Going to vet next week for fixin’...still no name yetCNCToolCat's Cat-House



    ToolCat Greg

    “The Cat King”

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  11. #247
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    Quote Originally Posted by Archer120x View Post
    The Rigol DS1054 is a great value for shop use at $350. Definitely get a 4 channel model, just debugging encoders uses 3 channels. Don't buy an old clunker. Get a newer one that you can screen capture and share here if you have questions.
    Of course, I'd prefer a $25k LeCroy, but that isn't as "disposable" as the Rigol.
    -Tony
    Thanks for posting this. I've been looking for a scope for doing repairs on my own cnc equipment.
    These do look like a great deal.

  12. #248
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    Nothing helpful other than i love the little boogies
    Attached Thumbnails Attached Thumbnails d4a105f2-ebfc-4a69-b06d-b99bec06b524.jpg  

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  14. #249
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    I like reading your threads as well as some others.
    funny about the Cats. We have a 27 year old son with Down syndrome. Since the China cough we took him out of all his activites as well as his Job with the city( they shut down). Anyway Wife decided he needed a cat at the shop with us as he works there also, figured he would learn to take care of it and stuff even though he has 3 at home and he would keep the mice away.
    Anyway its his best friend and there like glue together when he is there. Anthony checks parts and the kitten helps and watches. When he goes home for the day he puts the chair in Front of the machine and the Cat watches the machine run for hours. doors open or closed he doesnt care. The more chips flying the more interested the cat is.
    was filling up way lube the other day and spilled some on the floor. went and filled the machine came back to clean it up and he's drinking it. WTF? had to start keeping the pales high and out of reach as the cat licks the edges of it. Wife and Kid named him Alloy, should have Named him Way Lube.

    img_0742a.jpg

    img_0720a.jpg

  15. #250
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    Got another cat a few months ago, Wife was out front and this kitten staggered up to her, horribly abused tail broken in 3 places, left eyeball hanging out on her face, road rash everywhere from being tossed from a moving car is my guess. ASSHOLES that do this need the same treatment. Wife took it to the vet, they removed the eyeball and sewed it closed and whatever else they did for the 800.00+ they charged. Lots more than the .22 I was going to fix it with, but it was worth it. Friendliest cat I have ever seen. We call her stray cat, she will come when called like a dog.

  16. #251
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    I don't understand how people can do that to animals.

    Two of ours were rescues from a dumpster. One's super loveable and the other one is a psychotic princess.
    kittens.jpg

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  18. #252
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    I hate cats and my daughter's love them. We have a shop cat that stinks up the place. But it does keep the mice and spiders out so there's that. Everyone seems to want to kill the snakes when they get in to eat the mice.

    Sent from my Pixel 3 using Tapatalk

  19. #253
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    Default CNCToolCat's Cat-House

    Been a lot going on around the Cathouse this spring and summer, so I figured it was time to post up an update.

    First a little back story:

    Back in 2004 my dad and a couple brothers started a shop on the other end of town to machine mining parts.

    It wasn’t long before I was running overflow parts for them, and generally serving as dad’s “on-call machining engineer and programmer”. CNCToolCat's Cat-HouseCNCToolCat's Cat-House

    I didn’t mind it though, as they were buying a good chunk of parts from me, and writing a check upon delivery.

    Dad’s partners - two brothers who live in eastern Kentucky, are right smack dab in the middle of coal country, and both had been selling in the industry all their lives.

    One or the other would ride over to Virginia every week and haul a load of parts back to Ky. I was fortunate a percentage of those were mine.

    The 2000’s were real busy for us coal-industry machine shops, things really didn’t slow way down for us till about 2015.

    Dad ended up retiring and selling out to the other brothers in 2014. Both shops continued to plod along, with a nice uptick after the Presidential election of 2016.

    It wasn’t long after dad sold out the two brothers fell out, as is typical in close partnerships.

    I saw my opportunity. I met with the brother who actually did most of the selling — Montie, and we agreed to work together.

    I would buy his brother’s half of their shop, Montie and I would then be partners. He would live in Ky and do the selling, me and the shops are here in Virginia. Each would have his own specialty to take care of, Montie the selling and me the machining.

    Great plan it was...only thing it took 3 years before we got it worked out!

    So, finally on 4-2-20, I closed on 51% of Montie’s shop, and signed an agreement with Montie to buy his 49% over the next 5 years.

    Montie had four on the payroll: a general manager, two machine operators, and a secretary — who just happened to be the general manager’s girlfriend.

    Montie and I’s plan was to let the general manager and his girlfriend go, and keep the two machine operators on the payroll.

    So, we meet with machine operator #1, and offer him a position with the new company.

    He says he doesn’t want to work unless Fred the general manager gets to work.

    Montie immediately told him Fred doesn’t sign his check, and that he is fired for trying to strong-arm us.

    Then machine operator #2 comes into the office.

    We again offer him a position with the new company, and he again states he does not want to work unless the general manager Fred gets to work.

    And again, we fired his ass on the spot!

    Before I leave with a cliffhanger, I wanted to show a few pics of my new shop, but Tapatalk ain’t cooperating... more later

    ToolCat

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  21. #254
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    Finally, got some pics to cooperate...












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  23. #255
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    Those look like some nice machines.

  24. #256
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    So you are combining the shops? And I presume looking for markets other than just coal mining? Looks like a good inventory of well chosen machines....

  25. #257
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    The plan is to combine both shops, but I have to add-on to the Cathouse first.

    This will take about a year to plan and get done, so until then we will operate the new shop in its current location — even with the salty rent.

    I’m just so busy running both shops, I’m allowing plenty of time in the plan to expand the Cathouse.

    The coal mining industry in America is definitely smaller, and shrinking more every year.

    However, metallurgical coal is holding it’s own, and is projected to actually grow slightly over time — especially considering exports.

    For my business, we are doubling down on the coal industry. Why?

    Well, we have long-established relationships with the major distributors in the Appalachian region (Ky, Va, WVa), and are currently growing our market share in other areas like Pennsylvania and Alabama.

    I like to tell people that we get the “scraps” left by the OEM’s, but for a smaller shop like mine that represents a lot of business, even in a shrinking industry.

    And coincidentally enough, as we were purchasing shop #2, we got the opportunity to have our parts tested by one of the larger coal companies in the US. (Getting on the vendor list of a large coal company is pert-near impossible, but once you’re in, it's yours to lose.)

    The tests went well, and they are slowly adding our products to all their mining locations.

    We are selling direct to this coal company, actually signing a long-term supply agreement. (Them covering their ass if I screwup...lol) Once all their mines are using our parts, it will double our business.

    And, since all of their mines are met coal, we’re planning long-term here...as long as the world needs steel, the world will need met coal.

    And, it appears the coal guys at the top of the different companies know each other and talk often.

    The COO of our current customer recommended our products to a big-wig at another big coal company, and they sent a crew down to visit the shops — and are currently testing or products.

    If these tests go well, coal company #2 wants us to sign a supply agreement, and this would double our business again! CNCToolCat's Cat-House

    So it appears bringing shop #2 into the fold came just in time...

    One huge advantage of selling direct to the mining companies is that they like to pay early and take a 1% discount. No problem here, to get my money in 20 days is like a dream come true!

    Our distributors tend to take anywhere from 30 to 90 days to pay, and even though they are the ones that got us to this point, we’re getting ready to “read a few of them the riot act” about payments.

    Makes it easier to do that when you have steady business that pays in 20 days.CNCToolCat's Cat-House

    More later,

    ToolCat

  26. #258
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    Ummm... toolcat? I didn't follow half of that LOL....

    So what exactly is going on, buying out a shop, or just sharing what's going on with you...??

  27. #259
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    Default CNCToolCat's Cat-House

    Mike,

    I bought another shop that makes and sells the same products we do.

    We were essentially “partner” companies for years anyway (as my dad helped start and run shop #2), so it made sense to partner-up rather than compete.

    We fired the general manager of shop #2, and the two operators were fired because they demanded he stay.

    So, that leaves me as the general manager of both shops, and I have added two new men at shop #2, and soon will be looking to add a general foreman-type position to help me manage the madness.

    So much for taking a long vacation now...CNCToolCat's Cat-House

    ToolCat

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  29. #260
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    Well, FWIW - I followed it fine - except the part of "How big to add on"?
    (meaning the "doubling again" part)

    Is most of your coal from surface or underground?
    We was s'posed to have had a high volume job for underground that never took off [supposedly] doo to the [coal] market crash.


    --------------------

    I am Ox and I approve this h'yah post!


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