Thread: Big shed door

Originally Posted by auscab

The way I now see it . If Ive got it .
If that slot was 200 mm long and it replaced a normal single hole for the axle that was placed at the center of the slot position, the 100mm point along the slot, then by having the slot the door gets an extra 100mm left and 100mm right travel over the same track length. 100 mm each way more than the single hole design on that track. That's its advantage ?

I wonder if those axles have a shoulder turned in them to stop the axle going skewif or if its the wheel on the track that stops that ?

Rob

Or it's 200 mm in one direction. The ratio of wheel diameter to axle diameter is also the ratio of door travel to slot length.