Hi guys, thanks for an informative thread. Just thought I'd add my attempt at a spacer setup.
Materials list:
- 2 x 30x30x30mm square steel bar cutoffs (1.6mm thick in my case)
- 2 x M10 16mm bolts and nuts
- 2 x spring washers
- 4 x washers (16mm bolts are only just too long, would only need a single washer if they were a few mm shorter)
All up cost about $30 from bunnings. I just used a hacksaw to cut the square steel bar sections and a file to smooth the edges, came up alright. Cut two holes 12mm diameter into opposite sides of each square section, use the original nut to fix it to the floor and then an M10 bolt to attach the steel section to the
seat itself with the washers.
Screenshot_20220426_201103.jpg
Screenshot_20220426_200944.jpg
A couple more picture here:
https://imgur.com/a/16N4iZOEverything only just fits with these measurements, including fitting a spanner inside the square to tighten the original bolt (slowly, about 1/8th turn at a time). 1.6mm thick steel might be borderline but seems strong enough. One advantage of this design is the weight of the chair gets distributed through the square section onto the floor as in the original setup, whereas the
spacers elsewhere in this thread would put the weight more on the bolt itself? Or at least partially. Anyway, seems like it hasn't mattered and am probably overthinking it
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