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Recent Topics

Troubleshooting

by mwu

Ask questions about your build! Having trouble printing a particular part? Having trouble getting parts to fit? Trouble sourcing non-printed parts? I am here to help

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reducing size

by infinniti

hi all, how would i go about reducing the size of this ?

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SLA Curta

by JetPowered

I stumbled upon this build while looking for complicated mechanisms to test out the capabilities of the FormLabs Form 2 in making precision mechanical components/systems. I think there is little question that a Curta fits that build.

However I note that this build is based around using Fused Filament prints. I'm wondering, for those who are already familiar with the 3d geometry and the development of these cad models, what further consideration should be taken in attempting to print the components using an SLA printer. Should the extra "stock on" of the 3d models be reduced, or eliminated? As I understand it the interfacing components in the models are designed to have interference, with the intent of manually grinding the surfaces to match. I'm wondering if it is practical to reduce this stock on.

Additionally, what would be the bottle neck to scaling the build down? Would a 2:1 assembly be practical? Obviously all the non-printed components such as hardware, bearings, springs, etc would have to be re-assessed and new components sized. I imagine the entire assembly would need to be redesigned as opposed to simply scaling the solids and hitting the go button. My question is, would such a thing be practical? What trial components/fits could one start with to substantiate that the redesign of the assembly to a different scale would not be a wasted effort?

Any and all feedback is welcome. Thank you.

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Nozzle Diameter?

by vibur

What's the conventional wisdom on nozzle diameter for the .1 mm layer parts? I was thinking of using a .25 mm nozzle but, if everyone is printing these successfully with a .4, I probably wouldn't bother.

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Filament choice

by LessPaul

I understand that the 3:1 Curta was printing with PLA, I seem to recall some parts were carbon-fiber reinforced PLA. Are there other filament types that should be considered for the various parts?

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