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

  • Balans Chair Re-footing

    I’ve been using what’s now called a Multi balans chair since shortly after it came out in the 80s, during which time the plastic feet have worn flat:

    Balans chair foot - foot wear
    Balans chair foot – foot wear

    By now, the wood bases ride on the floor, which is a Bad Thing I should have fixed long ago:

    Balans chair foot - wood wear
    Balans chair foot – wood wear

    The newer Multi chairs have rolling endcaps, but AFAICT that’s not a retrofittable thing.

    The feet have no obvious way to get them out, but after I saw how thin the plastic had become on one foot, some experimental carving solved the problem:

    Balans chair foot - OEM foot removal
    Balans chair foot – OEM foot removal

    A large bolt threaded into the crude hole provided enough griptivity to yank the feet out:

    Balans chair foot - removed feet
    Balans chair foot – removed feet

    With measurements in hand, I picked up a quartet of furniture leveling feet with M10 stems and tee nuts that exactly fit into the recesses:

    Balans chair foot - tee nut fit
    Balans chair foot – tee nut fit

    I generally buy from sellers who include measurements in their descriptions, although I no longer believe any unit-measurement prices. Most of the time the sizes come out close enough to reality for my simple needs.

    The stems were, of course, too long, but that’s easy to fix:

    Balans chair foot - cutting stem
    Balans chair foot – cutting stem

    The saw does yank the stem down at the last moment, but cutting slow & steady thins the steel and reduces the drama to manageable proportions. Fitting a scrap of wood exactly under the screw would be a much better technique; be it so moved.

    With the chair set to the mid-angle position I normally use, the feet meet the floor almost perfectly:

    Balans chair foot - straight foot contact
    Balans chair foot – straight foot contact

    At the steepest angle, things get skewed:

    Balans chair foot - angled foot contact
    Balans chair foot – angled foot contact

    Applying my nearly perfect hindsight, I got a set of swiveling feet and found an appropriate scrap of wood:

    Balans chair foot - swivel foot cutting
    Balans chair foot – swivel foot cutting

    Zero drama!

    Which looks exactly like it should with the chair at the steepest angle:

    Balans chair foot - swivel foot contact
    Balans chair foot – swivel foot contact

    The chair now sports two pairs of feet:

    • Straight feet on the rear
    • Swivel feet on the front

    Now, to see how they survive on a chair, rather than motionless furniture.

    If you have any idea why the WordPress AI image generator would come up with this, let me know:

    Balans chair foot - WP AI image
    Balans chair foot – WP AI image

    That’s not hallucination, it’s just plain irrelevant.

    For the record, we also have a couple of equally ancient Variable balans chairs.