Enlarging print volume

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capp_ccc
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Joined: Mon Oct 01, 2018 12:55 pm

Enlarging print volume

Post by capp_ccc » Mon Oct 01, 2018 1:16 pm

Hi all!
I'm starting a business. I want to use LulzBot printers to manufacture my products. Trouble is, the TAZ 6 is too small for what I'm trying to make. I need something ~4.7 times the print area and ~2.7 times the print height of the TAZ 6. I've heard of people modifying their printers to get a larger print volume. Does anyone around here have any experience in that? Where can I find information on it?

Thanks!

(P.S. I apologize if this is in the wrong section!)

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piercet
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Location: Battleground, WA
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Re: Enlarging print volume

Post by piercet » Tue Oct 09, 2018 4:41 pm

The biggest hurdle you are going to run into is the bed. Specifically powering and controlling a larger bed heater. You cannot run any additional power through the Rambo board bed controller, so you will need to utilize some sort of relay or SSR / mosfet to control what will probably end up being an AC powered bed off its own power supply.

THe next biggest hurdle is increasing the frame size. There are a few projects here based off increasing the size of the taz, the main takeaway is that using smooth rods isn't viable much beyond 300mm bed size, so you need to look at boxed rails or similar for strength. You also need a frame that can support a much longer printer. Making the components bigger means you need bigger motors to move them (NEMA 23 for the bed) and you run into issues like spring rate on the belts causing ringing, etc. It's definitely doable, but it isn't a quick or cheap process and there are significant technical issues to resolve.

BusterCherry
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Joined: Mon Nov 27, 2017 5:19 pm

Re: Enlarging print volume

Post by BusterCherry » Wed Oct 10, 2018 1:11 pm

What material are you planning to use to print your parts? Would it be feasible to print sub-components of your parts and then weld them together with solvents?

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