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Type: Posts; User: zeox

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  1. Adding limit switches to Chinese 6050 engraver (Benbox/eleksmaker)

    Hi guys,
    Recently I received my 6050 3W blue laser engraver. Its main purpose is to help me with LED PCB prototyping. It will mostly cut out single use stencils for solder. And also burn out solder...
  2. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    I was probably a bit too quick to celebrate :)
    Today after 3 more hours of cutting, the endmill broke again. This time however there was a visible wear on the tool. I guess that is the most that...
  3. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    As I need to repeat almost the same cut on the other side, I'll try to speed things up by using an 8mm endmill for the triangle shapes.
    Also The crabide 6mm mills that I have ordered should arrive...
  4. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    Just little update.
    366320366322

    After a few more tool breakages, I not only altered the tool path, but lowered the rpm/feed and depth/stepover. You can see that the cut looks much better on...
  5. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    Well guys, I found the problem. It is tool deflection, but it was hard to notice it initially
    Today I started cutting and broke the mill on the 8th minute. Changed it, continued cutting for another...
  6. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    @Dharmic, yes Ethanol is much more expensive. But I'm going to get only a small bottle of it just for the test. When mixed 1:20 with water it should give me plenty of fluid until Monday. The places...
  7. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    Well, seems like I'll do some testing these days. I'll get some ethanol from the pharmacy tomorrow for the test. On Monday I'll obtain both lamp oil and methylated spirits and I'll mess around with...
  8. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    I am using a single nozzle too. I was thinking about adding a second one (I had ordered a second one as spare) with just air no coolant fluid.

    And yes, whenever the end mill goes deeper, the stock...
  9. Re: Need advice milling aluminum, broke endmill after 2 hours of milling

    I am using Inventor Professional 2015, but I am using standard pocket clearing, as the Adaptive option takes too long to compute and too long to cut. I know the Adaptive strategy will increase the...
  10. Need advice milling aluminum, broke endmill after 2 hours of milling

    Hi guys,

    I've been self educating myself on CNC milling for the last year or so. Up to now I have milled mainly Plywood and MDF. Started experimenting with aluminum just recently. Today I started...
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    Re: DIY recipe for lost foam slurry

    Well I still haven't done the molds for foam expansion. But as I said, I have plenty of to time for this.
    As for the parts I'm about to cast, various holders, flanges etc.
    I would also try casting...
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    Re: DIY recipe for lost foam slurry

    Sure thing, here you go :)

    https://www.alibaba.com/product-detail/Gasifiable-patterns-castings-polymeric-resin-EPS_60582005254.html?spm=a2700.7724838.0.0.xZ8PO7&s=p

    Alibaba of course. You can...
  13. Replies
    4
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    3,750

    DIY recipe for lost foam slurry

    Hi folks,
    I am thinking of stepping up my lost foam casting. Standard packaging and insulation foam gives a pretty crappy finish of my parts, so I have researched how professional grade lost foam...
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    Re: Understanding metal castings

    I do agree, Ian. I do not wish to argue, first because I am a total noob at this, secondly because whenever I brag, karma punishes me :)
    So if I continue explaining how highly unlikely the steam...
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    Re: Understanding metal castings

    You are right of course. I forgot to mention that this applies to sand castings. When it comes down to permanent molds, it is a completely different story.

    It is important to understand the...
  16. Re: I need Help regarding cost reduction for an casting process .

    Well... It will be kind of hard to anyone to give you any suggestions, unless you post complete details about your current process.
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    Re: Casting vs CNC maching and other things

    for 50 pcs. of standard sized house numbers, with a different number on each. I would consider obtaining a slab/sheet of aluminum/brass/bronze and milling them in a single operation
    For 50 identical...
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    Re: Understanding metal castings

    I am new to this just as you. So far I've done 2 pours, not very successful.
    I did research the whole thing thoroughly. I've read that steam explosion is highly unlikely when it comes down to...
  19. Where to obtain organophilic bentonite clay in EU. (First steps in alum casting)

    Hi guys,

    For those of you who don't want to read the whole thing... I need to find a supplier for a small quantity of organophilic bentonite within the EU (preferably in Germany, or the UK while...
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    Moving Y and slaved (A) axis independently

    Hi folks,

    Is there a way to manually move the Y and A (slaved to Y) axis each on its own?
    That will be very useful for gantry alignment, as currently I have to manually loosen the nut of the...
  21. For crating VB Macro for zeroing tool, and rotating working coordinates

    Hi Guys,

    I am looking for a way to make Mach 3 do a very specific thing.

    First of all I want to use a USB microscope to find my XY zero point, and a Z-probe just like in this blog post:...
  22. Re: Choosing an indexable end mill for 2.2kw chinese spindle

    Hi Jamie,

    Thanks for your reply. According to the guy who sold me the machine, it should handle aluminum if mist cooling is added (alternatively I could be spraying some oil by hand).
    Anyways I...
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    Re: Z axis dives into workpiece

    Hi,
    I've encountered such a problem, when switching my software for toolpath generating.
    My first ever attempts at router milling had toolpaths generated by all sorts of free softwares, and there...
  24. Choosing an indexable end mill for 2.2kw chinese spindle

    Hello,

    My name's Martin, I'm new here.
    I am new to CNC machining. I've been gradually learning to use a custom built CNC router for the past few months. The machine is pretty low-end. I am now...
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