Better Divider Width

[qwertymodo]

Looking at the dimensions of the various models, the divider width doesn't really add up cleanly, so there's a bit of a gap at the end of the rack once you fill it with as many dividers as it can hold. I ran a few different variations to try and figure out the closest dimensions that actually divide up cleanly, and this is the best I was able to come up with. Ideally, you'd have a value that works for any length of extrusion in multiples of 100mm, but those numbers don't really work out due to the 20mm taken off of each end for the left and right end mounts. So, because you have the length of the extrusion minus 40mm for the ends, if the divider is cleanly divisible into 40mm, then it will work for any extrusion length multiple of 200mm. And lucky for us, 40mm/3 = 13.333mm, which is really close to the existing width of 13.26mm. Unfortunately, that's not an even multiple of a common layer line height, and if your layer heights are even slightly off, even that 0.7mm or 0.13mm or whatever, that adds up across that many dividers, so it's important to also specify some print settings to get the model to actually come out accurately or else changing the model size won't actually make a difference to the final result. Personally, I like to stick to multiples of 0.04mm in my layer heights, but you can make use of a different first layer height to make up the difference and get it within 0.01mm, which is good enough to not cause issues. So, final numbers:

Divider width: 13.32mm

Print options Option 1: Layer height: 0.24mm, first layer height 0.12mm Option 2: Layer height: 0.32mm, first layer height 0.2mm

[UnexpectedMaker]

They are designed to divide evenly into a specific length - they are designed to match up with the LED strip I am using, so every LED is at the correct position. If you are not using LED strips, you are free to alter the design to make it whatever width works for you.

[qwertymodo]

Ah, ok that makes sense. However, there is still a gap at the end of the rack. If you don't want to change the divider width, the other option would be to change the width of the end slots to take up that slack. It would mean needing a slightly different width for different extrusion lengths though, since the gap is different for each. Shouldn't be hard to parameterize, depending on how the model was made.

[UnexpectedMaker]

This was never meant to fit an exact extrusion length - changing the models to do so is not the correct answer here.... trimming the extrusion length is :)

But as I mentioned before, you are free to change the models to whatever dimensions you like - that's why I provided STEP files.

[UnexpectedMaker]

If you want to tweak the widths to have them fit a specific length and raise a PR to have them added to the remixes folder, that would be great. Then folks can pick whatever build versions the want :)