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  1. Replies
    26
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    28,521

    Re: Mild steel box section pricing

    Re Damping.

    This (Excellent) paper may interest you of you are thinking of building a machine and filling steel tubes with damping material. There are practical examples towards the end. Of note...
  2. Re: DIY Laser levelling using webcam and laser level

    Hi All

    Firstly, glad to hear you have moved to the Apple isle Kit, its a great place to live.
    I have made the project open source.

    I decided to open a GrabCAD page and have posted the CAD...
  3. Re: DIY Laser levelling using webcam and laser level

    Hi Joe
    Hi All

    Also see previous post LeoLFS

    If you are wondering what we have been doing while holed up due to Covid the following design has occupied us for quite a while. I am also halfway...
  4. Re: DIY Laser levelling using webcam and laser level

    Hi All

    Sorry I have not been around much we are moving house.

    Below is a a few quick screen grabs of a concept design of a device to create a flat surface directly on the support tubes of a CNC...
  5. Re: Purchase from linearmotionbearings2008 is turning out to be a total disaster

    And no paper does not help!
  6. Re: DIY Laser levelling using webcam and laser level

    HI All

    Well Put Joe. "Devmonkey"

    This thread "is about developing a open source optical metrology system using very cheap components for the benefit of anyone who wants to measure anything...
  7. Re: DIY Laser levelling using webcam and laser level

    Hi All

    Gee who would have thought this thread would have generated so much interest.

    I am tempted to bring up the possibility of automating bed machining using software!

    The following is...
  8. Replies
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    3,945

    MSMEE Exhibition Video 2019

    Hi All

    Greetings from Melbourne Australia.

    The Melbourne Society of Model and Experimental Engineers (MSMEE) Exhibition held over two days was a great success and good fun.
    The society meets...
  9. Re: DIY Laser levelling using webcam and laser level

    Hi All

    Today I tested the software using a 640 x 480 VGA webcam without a lens and #2 Roslau Music wire (0.0010" thick).

    Digging around the workshop I resurrected an accurate XYZ jig table I...
  10. Re: DIY Laser levelling using webcam and laser level

    Hi All

    As some of you may know I am interested in using a stretched very fine .008" piano wire to determine straightness using a microscope.

    I posted my thoughts through this post here on this...
  11. BUILD LOG: Re: DIY Epoxy composite gantry frame milling machine

    Hi All

    Some good progress. The saddle and Z Axis has been cast and machined.

    25555

    More photos at my blog at the other place.
    ...
  12. Replies
    7
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    11,488

    Re: Very fine thread M10 grub screws

    Machines that have to be "Trammed" can have built in sliding or rotating adjustment, they have finely finished surfaces held together by clamping screws. They only work in one plane there is no gap...
  13. Replies
    7
    Views
    11,488

    Re: Very fine thread M10 grub screws

    Hi

    If you are going to set a machine up using jack screws the frame members will end up only touching at a few points, while this may achieve good frame geometry and depending on the fasteners...
  14. BUILD LOG: Re: DIY Epoxy composite gantry frame milling machine

    Hi All

    At last the base, columns and cross-member are one and I don't believe I could achieve the level of accuracy obtained without a laser cut mold.
    ...
  15. Re: Calculate Error from uneven rail and reference

    Found a photo of the setup I mentioned, it was just a lashup for a one off, it worked well. Note the bolted on wire support and adjustment unit

    25421
  16. Re: Calculate Error from uneven rail and reference

    Hi all

    One quite simple way to set rails straight is with a stretched wire. Together with a cheap digital microscope (Get one with electronic cross-hairs) off the net. Alternately an optical...
  17. BUILD LOG: Re: DIY Epoxy composite gantry frame milling machine

    Hi All

    I just completed the columns for the mill next is the base, an exciting step as for the first time the frame of the machine can be tested.

    I have a full write up here....
  18. Re: The dude butchered my aluminum extrusion :( !!!

    Some extrusions have a central hole, if yours has one you can turn the ends between centers if you have access to a big enough lathe. obviously there will be a small pip left, that can be removed...
  19. BUILD LOG: DIY Epoxy composite gantry frame milling machine

    25102

    Hi All

    Its been a while since I popped in here, I am working on a new milling machine build. This not a light weight design. It has been designed to work with steel or Aluminium depending...
  20. Replies
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    99,342

    Re: Epoxy granite or mineral casting

    Hi All

    This is my first post at MYCNCUK

    This is an old thread but I hope the information helps, I have made a machine using Epoxy. It has a cast base and also two cast carriage ends. And these...
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