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  1. #11
    looks brilliant!

  2. #12
    hello everyone!

    the gantry ends (and all other parts) are machined from solid 7075 T651 but those are covers as well.
    i'm including some images without the covers for clarification
    Click image for larger version. 

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    Updates
    this week iv'e FINALLY got my UDOO x86 single board PC which will be paired with Dynamotion's Kflop motion controller to create what i hope
    is the best hobby solution today for machine control. (more updates on this soon)
    Click image for larger version. 

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    also, the work has begun on the machined parts(!!)
    Click image for larger version. 

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    Last edited by giladv; 28-07-2017 at 10:49 AM.

  3. #13
    Hi giladv,
    Very interested in your project as I am thinking of building something of similar compact size in the near future and your design looks great.

    I also use Kflop with my CNC mill and I love it.

    One question, the 1.8 spindle servo, can you tell us what servo you are planning to use? Is is a dedicated spindle servo for higher revs or just the usual 3000 revs?

    Edward

  4. #14
    Quote Originally Posted by Edward View Post
    Hi giladv,
    Very interested in your project as I am thinking of building something of similar compact size in the near future and your design looks great.

    I also use Kflop with my CNC mill and I love it.

    One question, the 1.8 spindle servo, can you tell us what servo you are planning to use? Is is a dedicated spindle servo for higher revs or just the usual 3000 revs?

    Edward
    thanks!
    regarding the spindle: the ac servo should be 3500 rpm max (with the driver itself i was able to go only to 3000rpm).
    but there is a 1:1.87 gear ratio between he spindle and the motor. so i'm planning on around 6000-6500 rpm at the spindle tip.

    best,
    Gilad

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  6. #15
    hello everyone, just a small update:
    Click image for larger version. 

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  8. #16
    RobC's Avatar
    Lives in Leeds, United Kingdom. Last Activity: 30-12-2022 Has been a member for 5-6 years. Has a total post count of 116. Received thanks 16 times, giving thanks to others 21 times.
    Can't wait to see some more shots as you build it!

  9. #17
    Quote Originally Posted by giladv View Post
    hello everyone, just a small update:
    Click image for larger version. 

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    Giladv,


    I am curious about your progress.

    Any news?


    Grtz Bert

    Verstuurd vanaf mijn SM-A320FL met Tapatalk

  10. #18
    hey driftspin,

    unfortunately i'm kinda stuck as my friends CNC shop is busy with some real work haha (crying inside).
    i have all of the "off the shelf parts" waiting in my home for the machined parts for almost a year now i think.

    i promise to update as soon as things start moving again:)

    Gilad

  11. #19
    A question pops to my mind. Looking at the type of structure. WHY BT30 head?

    I understand if you will tapp all day. But if not:

    -you limit your speed more than half
    -3kw spindle will cut through directly 1mm of mild steel with no problem and HSM with 6mm flute in that same mild steel any depth to 6mm!!! I know that from my machine
    -forget about wood
    -forget about engraving
    - even aluminum needs 12k RPM at least with normal 6mm flute and 24k with 1/8 and similar

    IMHO you limit severely your machine with this BT30 spindle. Its like driving a big black 4x4 near the seaside on a perfect road, while you must be driving a white cabrio sports car...


    To me tapping could be solved differently and money spend towards better spindle, bigger spindle. At the end of the day it would be cheaper to make a dedicated servo+Z2+collet just for tapping.

    Because from the looks that's not a machine for steel for me and i can not be easily convinced that it will be with that aluminum profiles.

    Just some thoughts

    PS. If you insist on this shape, size capability, then you need Epoxy Granite one, not a router, but mill. Ah, yeah. And extra spindle for small bits and engraving...
    Last edited by Boyan Silyavski; 21-03-2018 at 08:55 AM.
    project 1 , 2, Dust Shoe ...

  12. #20
    Quote Originally Posted by Boyan Silyavski View Post
    A question pops to my mind. Looking at the type of structure. WHY BT30 head?

    IMHO you limit severely your machine with this BT30 spindle. Its like driving a big black 4x4 near the seaside on a perfect road, while you must be driving a white cabrio sports car...
    Don't talk stupid. I'd rather have BT 30 spindle with option of ATC than 3Kw ER spindle anyday of the week. However what it really needs are high rpm rated bearings which can be replaced if needed.


    Quote Originally Posted by Boyan Silyavski View Post
    Because from the looks that's not a machine for steel for me and i can not be easily convinced that it will be with that aluminum profiles.
    Why do you doubt Profile.? Your machine is made from mild steel tube which very similiar in density to Aluminium profile but it's it's hollow so much more resonant which is bad news if trying to cut hard materials like steel.

    Can tell you know I'd much rather have Gantry made from HD profile than from thin/medium wall Mild steel box section. Unless that box section was minimum of 10mm thick wall which then opens up all lot of other issues regards Mass etc.

    Just because it's made from steel doesn't always make it better or stronger.
    Last edited by JAZZCNC; 21-03-2018 at 12:32 PM.

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