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  1. I wouldn't say there is a consensus necessarily,...

    I wouldn't say there is a consensus necessarily, but in general, there is no way to avoid the direct linear relationship between torque and amperage in direct-drive / built-in motors on machine tool...
  2. It's hard to see from the video above because the...

    It's hard to see from the video above because the 2d drawings have so many components, but the main spindle on his older integrex has a concentric worm gear permanently mounted on the spindle shaft...
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    I'm wondering why HSK spindles are more expensive...

    I'm wondering why HSK spindles are more expensive to make, aren't they nearly identical to steep taper spindles? The angle is a little bit different but most builders have been making dual contact...
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    I'm a little bit confused on the Speedio amperage...

    I'm a little bit confused on the Speedio amperage claims, the brochure says the standard spindle has a max output of 18.9 kW momentary, and the high torque spindle can do 26.2kW momentary. 230v x 30A...
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    Dualkit, I haven't lied to anyone here. I...

    Dualkit,

    I haven't lied to anyone here. I don't believe I ever said that the shop was *in* the port, but rather near it; I was not sure exactly where the zoning starts and ends but my shop was a...
  6. Mikron has a hardware solution to the problem of...

    Mikron has a hardware solution to the problem of spindle crashes;

    https://www.youtube.com/watch?v=Q02peIiZ4ck

    And Haas has a software solution;


    https://www.youtube.com/watch?v=JqfnlPELl_g...
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    I thought people would have a slightly more...

    I thought people would have a slightly more inquisitive response to the recent Taiwan update, but it looks like most of the people here refuse to believe any of it.

    Starting with the DNM 5700...
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    358
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    60,007

    I haven't logged in on this forum for a while and...

    I haven't logged in on this forum for a while and it looks like this thread has come up multiple times without me seeing it on the list, so I didn't get to respond. I'll try to cover some of the...
  9. Replies
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    No communism/Stalinism here! If these tariffs...

    No communism/Stalinism here!

    If these tariffs had been enacted by congress, or if they had some type of scheduled roll-out I would have different feelings about them, and I would be able to make...
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    I have given out my personal phone number to a...

    I have given out my personal phone number to a few backers who wanted to talk, but posting personal info in public places is generally a bad idea, I get enough robo spam calls already. There were...
  11. Replies
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    Whoa damn slow down Gcoder! I've never been to...

    Whoa damn slow down Gcoder!

    I've never been to China. Nobody at Kickstarter has ever offered to fly me out to China, I never met with anyone at Kickstarter or had any factory brunches, nobody ever...
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    After the Kickstarter was over and the numbers...

    After the Kickstarter was over and the numbers were in, we had a total of 36 machines to build. The early plan was to run a batch of components that would make 5 machines, to get our machining...
  13. Servo brakes and constant torque heat losses

    It seems like on most newer (not ancient) cnc machines, there are no weight counterbalances for vertical axes and the servos for these axes just use a constant torque output to keep the ballscrews...
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    Yep it should be easy, it will take maybe 30...

    Yep it should be easy, it will take maybe 30 seconds in a VMC. The "crust" on hot rolled steel is abrasive and will contribute to most of the wear on your tool, but the steel under it will machine...
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    Go back and watch the video again, check out the...

    Go back and watch the video again, check out the impacts:

    1) Steel VMC enclosure wall - straight through
    2) Steel shop wall behind VMC - straight through
    3) Steel shop wall near Bridgeport -...
  16. LockTech, Use 1/2" carbide AlTiN coated...

    LockTech,

    Use 1/2" carbide AlTiN coated endmills and run them dry or with air blast if you can. Use the full depth of cut of the endmill when possible, and keep your radial step over at 0.05"...
  17. I've been using HSM Express with Solidworks for a...

    I've been using HSM Express with Solidworks for a while, and it's pretty much what the OP is asking about. Make the parts as a 3d model, and click the CAM tab to start making tool paths. It isn't as...
  18. I have a mix of both dual contact and non dual...

    I have a mix of both dual contact and non dual contact CT40 Maritool holders in my VMC, I was in your position last fall.

    Maritool holders are perfect, I have more than 30 of them and I have not...
  19. dark purple-grey = TiAlN, for steel/ferrous....

    dark purple-grey = TiAlN, for steel/ferrous. Wears off if you cut aluminum
    black-grey = DLC more than a micron thick
    rainbow = thin DLC, less than a micron. The rainbow is there because the...
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    All of the power of the spindle motor is being...

    All of the power of the spindle motor is being converted to heat at the cutting edge where the chips form. This is an incredibly high power density in terms of wattage per unit volume. Any liquid...
  21. I've also noticed these HSM path don't deal with...

    I've also noticed these HSM path don't deal with corners very well. Most stock you would put in a vise has 90 degree corners, and HSM paths round them out too hard on the first pass, it seems like...
  22. I've considered putting dovetails into some of my...

    I've considered putting dovetails into some of my parts specifically for workholding, but since most of my parts are top and bottom 2 operations total, adding a dovetail doesn't make sense for most...
  23. I have been making a bunch of fairly large...

    I have been making a bunch of fairly large aluminum parts, all 6061 bar stock. Nothing has been kicked out of a vise yet, although I have had a few parts that lifted several hundredths of an inch...
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    I haven't contacted the dealer for a replacement...

    I haven't contacted the dealer for a replacement because I realized that if breaking a 1/4 inch end mill can shatter both panes, it is probably not worth it to have any type of glass in the machine...
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    Safety glass vs tiny carbide chunks

    I was slotting a small block of acetal with a 1/4 extra long carbide end mill. Part slid in the vise a little, then grabbed the end mill and kicked the part out of the vise. Not a big deal to lose 5...
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