The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • HQ Sixteen: Ball-mounted Stylus Laser

    Installing the new ball-mount laser stylus on the HQ Sixteen’s electronics pod required nothing more than two strips of good foam tape:

    HQ Sixteen - Stylus Laser - installed - overview
    HQ Sixteen – Stylus Laser – installed – overview

    In actual use, you would:

    • Lay down a “pantograph” pattern on a paper strip along the rear track under the machine’s carriage
    • Position the needle at the appropriate spot on the quilt
    • Aim the laser at the corresponding point on the pattern
    • Start the machine!
    • Move the laser spot along the pattern while the machine stitches that pattern in the quilt

    Mary thinks free-motion quilting is easier and I’m not in a position to argue the point.

    Anyhow, the key feature of my ball mount is that it’s completely out of the way:

    HQ Sixteen - Stylus Laser - installed - front
    HQ Sixteen – Stylus Laser – installed – front

    Which looks comfortingly like the original solid model:

    HQ Sixteen - Stylus Laser Mount - solid model - show
    HQ Sixteen – Stylus Laser Mount – solid model – show

    Minus the vivid red death ray and pew! pew! pew!

    Power comes from a barrel jack in the back intended for the original stylus laser; all small lasers, unless otherwise noted, run from 5 VDC. The jack is 3.5×1.3 mm, but the Drawer o’ Weird Barrel Plugs disgorged a matching right-angle plug. Unsurprisingly, such things are readily available these days.

    Splice the laser leads to the plug and cover the evidence with a braided loom + heatshrink tubing:

    HQ Sixteen - Stylus Laser - installed - rear
    HQ Sixteen – Stylus Laser – installed – rear

    I considered a switch, but the anticipated low duty cycle suggested just unplugging it, so that’s that.

    And It Just Worked™.

    The backstory begins There and continues to now.