A little over 800 g of HIPS. And yeah I know - bed is “very used” and in need of replacement - its on the list - next time I have nothing to do lol, For now with a little glue stick it holds the prints down just fine so not a big priority.
Outside dimensions (without brim) 315x315 mm so about 10.5 in
Starting assembly while the rest is being printed/designed
The “Tire” is shaped to the ball (cargo) and TPU the rest is HIPS and PETG
I just finished a Voron 2.4 350mm^3 printer and having more print space just opens things up in a huge way. It’s a CoreXY design so the mechanics are a bit “interesting” but the thing is a rocket ship because of the reduced moving mass of the CoreXY design (all the motors are fixed and don’t move with the X / Y gantry.
Very nice work.
I will build a big one 400x400 or bigger but not corexy as even with 350x350 as far as I heard belt stretch becomes an issue as coreXY extends the belts quite a bit compared to regular xy. But I will definitely not do a bed slinger. As it becomes a problem with big prints especially the ones that use 1kg+ in filament. You could print the above on a 350x350 though
I have a Creality CR-10s pro2 for bigger stuff but it will be quickly up for sale when I get the Prusa XL I have on order.
The XL should print this the CR-10 - not as its 315x315 without the brim. Now I’d like a Prusa XL very much
The common Voron 2.4 sizes are 250, 300, and 350^3 but the general consensus is that going above 350 is not a great idea due to belt issues as you’d mentioned. The Prusa XL is right at that being size as well at 360mm^3.
As things get larger, it becomes a battle of rigidity versus weight - you need to be rigid but the weight cuts down on your speed and brings in it’s own issues with resonance.
On the Voron, I’m using Klipper as opposed to Marlin and it’s pretty amazing. The input shaping it can do incorporating printer resonances it worthwhile for sure. I’ve got a Qidi X-Max as well at 250x300x300mm which is fairly rigid due to dual and quad guide rods in numerous places but traded that off by ending up heavy. It’s getting a refresh to replace the proprietary Marlin-ish control board and software with a Raspberry Pi / BTT Octopus pair running Klipper now that the Voron, like the Death Star, has been deemed operational.
The biggest thing there turned out not to be the size - which I really liked - but the speed. It can really burn things down which has been a huge prototyping win.
And I agree - when you get big, bed slingers ain’t where it’s at…
If you use the printer for what we have done - big is great. Most of our printing is done with a .8 nozzle for that reason. Well maybe I got time this summer and I give something a shot. I got a whole list of projects to complete first. Building some testers, making some arduino controllers etc for off season stuff and most of all getting some good data on stuff. But after those already started projects - some of them cause I was asked to - I’d like to build a big printer. And yeah speed would be nice too but anything is for a need and if has to I go a bit bigger and bit slower if I have to trade this off. I have been straining fitting some of the stuff on a 400x400 bed so we will see. But whatever I do in projects I will post it here - be it related to my FRC mentoring stuff or just one of my own crazy projects like this from a few months back
You might fit that on your voron I think if I remember correctly the outside dimension on the ring gears was 358. Its a compound planetary 128:1 or 276: 1 if you use the reduction on the bevel gear input.
You make some cool stuff
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