Finally got the printer fired back up - I've been delaying doing so due to some remodeling but I'm at a point in my current builds where I really need a few things.
I had thought I was going to need to build an enclosure so I could print using ABS - but then started researching PETG. Until tonight I had only printed with PLA. The PLA is easy to print with and forgiving - but the material is VERY brittle and tends to break easy. Plus there is some discussion indicating it will eventually break down in salt water. PETG, as it turns out, seems to be completely reef safe, is very strong, fairly flexible - and while needs to be printed on a heated bed (80c seems to work well for my printer) and fairly high temp (nozzle at 235c) - it does not produce fumes while printing and is not as sensitive as ABS to drafts in the room and things like that.
So - printed a test piece this evening and I'm impressed. Its a simple print of a simple design I've printed previously. A little piece that you can screw to the wall (or anything really) and snap RODI tubing in to hold the lines where you want them. When printed with PLA the tabs break off very easily. My test piece printed with PETG does not have that problem. I've inserted the blue tube and removed it at least a dozen times with no sign of the tabs breaking off.
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Now I can finally get back to putting this printer to use - things on the list:
<ul>
<li>Probe holders</li>
<li>RO tubing and wiring organizers</li>
<li>water sensor holders</li>
<li>CWC and TO tubing holders for all tanks</li>
<li>I have more - but it's late and I can't think of them off the top of my head</li>
</ul>
I had thought I was going to need to build an enclosure so I could print using ABS - but then started researching PETG. Until tonight I had only printed with PLA. The PLA is easy to print with and forgiving - but the material is VERY brittle and tends to break easy. Plus there is some discussion indicating it will eventually break down in salt water. PETG, as it turns out, seems to be completely reef safe, is very strong, fairly flexible - and while needs to be printed on a heated bed (80c seems to work well for my printer) and fairly high temp (nozzle at 235c) - it does not produce fumes while printing and is not as sensitive as ABS to drafts in the room and things like that.
So - printed a test piece this evening and I'm impressed. Its a simple print of a simple design I've printed previously. A little piece that you can screw to the wall (or anything really) and snap RODI tubing in to hold the lines where you want them. When printed with PLA the tabs break off very easily. My test piece printed with PETG does not have that problem. I've inserted the blue tube and removed it at least a dozen times with no sign of the tabs breaking off.
Now I can finally get back to putting this printer to use - things on the list:
<ul>
<li>Probe holders</li>
<li>RO tubing and wiring organizers</li>
<li>water sensor holders</li>
<li>CWC and TO tubing holders for all tanks</li>
<li>I have more - but it's late and I can't think of them off the top of my head</li>
</ul>