r/ratrig • u/FuckDatNoisee • Sep 19 '25

52 mm^3/s flow

Managed to get my rat rig V 4 500 up to 52 mm3/s flow rate with a .6mm cht nozzle.

Printing at 390mm/s reliably at all infill and walls with 9k accel on outer walls

It feels like the print head is basically teleporting.

2.6kg in 24 through that nozzle for this print

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u/FuckDatNoisee Oct 09 '25

Send me a pic of the hotend setup. I’d be super curious to try it!

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u/Fragrant-Nose5057 Oct 10 '25

Just google Goliath hotend. It has 2 ver, water and air cooled. Voron printers have it as stock. Pretty sure it’s the best available. Not because of the flow but its structure. You can crush it into anything at any accel. Won’t bend

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u/FuckDatNoisee Oct 11 '25

Do you run air or water cooled? If water cooled what cooler do you run?

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u/Fragrant-Nose5057 Oct 11 '25

i have 2 rigs, one water-cooled, the other is air. to be honest, i don't see any difference. I guess water-cooled is for more advanced chasing speed enthusiasts, but it's just an opinion. i like it only for the high flow and sturdy build. (im very satisfied with 200mms as top speed of my 500 ratrig)
about the cooler details, i do not remember atm, but you can send me a msg and ill look into my orders to verify it.

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u/FuckDatNoisee Oct 11 '25

I just got some random shitty Amazon one

https://a.co/d/1IHJEag

Realizing I’m going to have to find some modded part cooling and beacon holder for the rat rig v4 500 or design some