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Type: Posts; User: implmex

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  1. OT: Am I going to regret buying a new mill?

    Hi All:
    Warning, I have a pissy rant to get off my chest first but then I have machining related question.
    So, tonight I drove a 2019 model Toyota Corolla with every fucking techno feature ever...
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    Hi NewToEDM: When you say "I have an OLD sinking...

    Hi NewToEDM:
    When you say "I have an OLD sinking EDM" just how old are we talking about?
    Is it a CNC sinker?
    Does it have a C axis? (controlled electrode rotation on the ram).
    Are you talking...
  3. Hi again litlerob: Until a sample is sectioned...

    Hi again litlerob:
    Until a sample is sectioned and examined for its microstructure we'll never know for sure, so all we can do is speculate.
    What does surprise me is that the vendor the OP is using...
  4. Hi litlerob1: Yeah I do. If you look closely at...

    Hi litlerob1:
    Yeah I do.
    If you look closely at the lower right corner of the first picture, you can see a pattern of dots with craters around them, almost as if someone had taken a welder and hard...
  5. Hi All: I'm going to argue against chatter as...

    Hi All:
    I'm going to argue against chatter as the root cause, and I say so because the OP pointed out in his first post that the problem is inconsistent not just between parts but within a single...
  6. Thread: Chmer RX 853SL

    by implmex
    Replies
    6
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    352

    Good morning sigpros: OK, here is my experience:...

    Good morning sigpros:
    OK, here is my experience:
    First off, there are several ways to make tapers on any wire EDM machine, and it's worthwhile to know all of them even if you rarely use them.

    1)...
  7. Thread: Chmer RX 853SL

    by implmex
    Replies
    6
    Views
    352

    Hi sigpros: I run a Chmer G32S wire EDM vintage...

    Hi sigpros:
    I run a Chmer G32S wire EDM vintage 2011.

    What, specifically about taper cutting do you want to know?
    How to write the code?
    How to set up the machine control?
    Tips tricks and...
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    Hi bryan_machine: You asked: "Also, they talk...

    Hi bryan_machine:
    You asked: "Also, they talk about 4micron Rz, which is 160microinch - is that a common level of finish for a mold?"

    A 160 microinch finish is what I'd expect from a bandsaw....
  9. Hi again All: So I had a lovely lunch at the...

    Hi again All:
    So I had a lovely lunch at the Lonsdale Quay market while the automatic machines busily made me some money.

    I made some titanium dick.
    I made some freaky screws.
    I got started on...
  10. OT: It's a gorgeous morning and I'm having a motivation crisis today

    Good morning all:
    This is a bit of a crybaby whine, not a legitimate machine shop question:

    It's been pissing down rain for the last week or so, but this morning is absolutely gorgeous and I'm...
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    Hi All: I'm in the camp with Alloy Mcgraw and...

    Hi All:
    I'm in the camp with Alloy Mcgraw and others who operate in a similar way.
    I have won new customers simply because I exerted myself to be helpful even when I had to regretfully NO BID on...
  12. Hi RicoRider: I have seen this phenomenon before...

    Hi RicoRider:
    I have seen this phenomenon before too, when turning Ti6Al4V titanium and this is how it was explained to me:

    Titanium exists in two main crystalline microstructures; alpha and beta...
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    Hi claytonbraga: You asked: "What do you guys...

    Hi claytonbraga:
    You asked: "What do you guys think about it? can be a good buy?"

    I don't believe this will be a good buy if you want to put the new machine back to work and here's why I believe...
  14. Hi fish123: Why are you trying to make a hole by...

    Hi fish123:
    Why are you trying to make a hole by plunging an endmill into the solid, especially in titanium?

    The problem is that you are loading the cutter way more than it was designed for, and...
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    Hi Rick: You wrote: "Also if you guys need a...

    Hi Rick:
    You wrote: "Also if you guys need a little bit of storage during a transition or whatever let me know as I may be able to help."

    You know, when I look at the disgusting spectacle that...
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    Hi Toni: You wrote: "For the record... I am a...

    Hi Toni:
    You wrote: "For the record... I am a female"

    Yeah, but to all of us you're one of the guys too and it's a pleasure to have you participating.
    So I assume that you are a tool and die...
  17. Hi Laverda: Are your small parts small enough to...

    Hi Laverda:
    Are your small parts small enough to consider a Sherline?
    I know invoking that name is spouting heresy on this hallowed forum, but I have one to complement my "big" lathe (a Monarch...
  18. Hi SShep 71: Have you considered having this...

    Hi SShep 71:
    Have you considered having this gear wire EDM cut?
    It'll be slow and expensive, but that'll be true no matter what process you choose.

    If it's just a hacker gear, you could also...
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    Hi tvalenzuela: Do I understand correctly that...

    Hi tvalenzuela:
    Do I understand correctly that you are cutting the cast iron part of this iron/steel assembly?
    I ask, because the only times I have had the sort of problems you're describing, was...
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    Hi All: I tried rotary broaching gears and I was...

    Hi All:
    I tried rotary broaching gears and I was not able to get them very accurate.
    Also, in Delrin, sometimes if the broach stalled I'd strip all the teeth off the part...I don't think there is...
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    Good morning NewToEDM: You asked "About chemical...

    Good morning NewToEDM:
    You asked "About chemical residue,i use anticorrosive spray on parts before i wirecut them.How bad could this harm my DI resin?"

    The problem with contaminants of any kind...
  22. Crabtree wrote: Now that's the first sensible...

    Crabtree wrote:
    Now that's the first sensible answer on this whole thread.

    About time ya'all started thinking in terms of manufacturing instead of reworking and jobbing.

    You can make a part...
  23. Hi phatbob: I like these Sandvik nosepicker...

    Hi phatbob:
    I like these Sandvik nosepicker inserts: VBMT11 03 02-PF
    They are 35 degree diamonds, 1/4" IC with positive rake and a tip rad of 0.00787"
    Way too fragile for gnarly roughing but for...
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    Hi ranchak: I like to refer these kinds of jobs...

    Hi ranchak:
    I like to refer these kinds of jobs to Zahnrad Kopf who participates on this forum.
    He's super knowledgeable and has all the right equipment to do this kind of work efficiently and...
  25. Hi phatbob: What material? How big? How...

    Hi phatbob:
    What material?
    How big?
    How accurate?

    If it's not some totally nutso freaky hard shit, I see no reason you cannot just turn the whole finish pass in one go, even if you have to...
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