(EDIT: I highly recommend checking out the pistons on this model, very much nicer than mine. https://www.thingiverse.com/thing:3682261)
Why could you possibly need more than one length of piston? I had asked myself the very same thing many years ago. But let me tell you friends, you don't ever want to end up coming up short when it's time for the sweat to hit the metal. I've seen giants toppled from a singular collapse of an improperly calibrated piston. You don't even want to know what the insurance deductible is on one of those things. As well, I've seen plenty of smart upstanding individuals as yourself scratching their heads when having to decide which is the right length of piston rod to use. And there's the beauty of ours...
...you don't have to. Take a moment to let that sink in. You print it ours and trim off what you don't need. A miracle of modern science it is. And if you need to fit it to something even large, just print it bigger! But if you want to make it smaller, then you are just an idiot, like Dave. Don't be like Dave.
So with all that in mind, I have one more very important thing to tell you...
It's free. No charge. It will cost you nothing but electricity and perhaps a few brain cells. And really, who doesn't have a few too many of those?
I'm going to be upfront with you. I'm not even allowed to even show this to the public at large, but I like you. Can I trust you to keep this between ourselves and 40,000 of your closest friends?
And as always, if you are overly pleased with our products. If you feel you can't go another day without being more poor. You can always leave a tip for the creator.
Printed just fine at 0.2mm. Should scale up fine a bit. But too big and the fit will get prtty sloppy. As well, I don't think it would print much smaller.