Re: Digest for 3d-printing-tips--tricks@googlegroups.com - 11 updates in 3 topics

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Kurt Gluck

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Mar 15, 2026, 6:52:03 PM (6 days ago) Mar 15
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I am sure fiberglass never heart anyone :-). Just joking.   I would stay away from fibers in my filament unless I absolutely needed them. 


Kurt

On Mar 15, 2026, at 3:27 PM, 3d-printing-...@googlegroups.com wrote:


david merten <davidme...@gmail.com>: Mar 14 02:40PM -0500

As much as I am against carbon fiber in printer filament, I am undecided
on glass fibers. I don't really want micro glass fibers added to my
environment. How bad do the fibers leak out? By all acounts strength is
improved, an important factor in many of my prints. And ABS is supposed to
print better. What opinions are out there? Anybody print with it yet?
David
Kurt The 3D Printer GUY!! <vr...@optonline.net>: Mar 14 01:21PM -0700

David - interesting topic. Why? Cause - I went a little crazy some weeks
ago and got a TON of new spools at MC. And, in fact - one spool I picked up
was Inland ABS Blue Glass Fiber. But - I have NOT printed with it yet.
 
Now - I'm not sure about glass fibers being airborne - if that is your
concern. But, the other concern - getting glass fibers in your fingers. A
coworker at VM had pointed me to a video a guy did - about Carbon Fibers
going into your skin - and he showed some crazy Close up pics of the carbon
fibers in his skin. So - I have NOT Doubt that it could also happen with
glass fibers.
 
My suggestion - as a preventative manner - might be to wear Nitril gloves
when handling the glass and carbon fiber filled filament.
 
It's just a thought...
 
*-K*
 
On Saturday, March 14, 2026 at 3:40:39 PM UTC-4 david merten wrote:
 
Alan B <alan....@gmail.com>: Mar 15 05:47AM -0700

Glass fibers are common and irritating but the health issues are better
known and seem to be less serious than carbon fibers. Glass fibers don't
interfere with colors. Glass fiber is non conductive and rf transparent.
Carbon fiber is conductive and rf lossy and can cause potentially unwanted
electrical conductivity. CF is slightly stiffer and lighter. CF is very
color limited to black and gray.
 
 
On Sat, Mar 14, 2026 at 1:21 PM Kurt The 3D Printer GUY!! <
david merten <davidme...@gmail.com>: Mar 15 12:57PM -0500

Alan that was a great response. I hadn't even thought about the rf
response of carbon fiber. Many of my projects involve electronics. There
could always be the possibility of signal problems, or unintentional
grounding.
That is why I love these forums, information and ideas from people I would
never meet otherwise.
David
 
Alan B <alan....@gmail.com>: Mar 15 11:47AM -0700

I didn't really use it in my response, but ChatGPT had a very good if long
winded comparison with a lot more detail. Being an EE and a Licensed ham
and having looked into GF for my projects I was aware of these already. I
was curious if AI would say more about health issues of CF but it really
didn't, aside from noting that both were irritants when sanded and that GF
was similar to working with fiberglass insulation. It also mentioned that
sanding CF makes conductive dust. I know a lot of folks are skeptical about
AI but I find that it often mentions something that I hadn't thought about
so it triggers further research. It also makes mistakes or doesn't know
about all the constraints we have so applying results directly isn't always
practical but it can be useful to have a discussion with it and guide it to
a better suggestion.
AlanB
 
On Sun, Mar 15, 2026 at 10:57 AM david merten <davidme...@gmail.com>
wrote:
 
Kurt The 3D Printer GUY!! <vr...@optonline.net>: Mar 14 02:54PM -0700

So - for those folks with the ECC - I wanted to give another update.
 
Thanks SO Much to Sean for the CAD file of the ECC printer. Will admit - it
was a Massive file - It made it tough to work with, since it was so
detailed. Even pulling out the back panel - it still ended up being a big
file. But, I was able to use it to isolate the proper features - the
spacing and size of the air vents, screw holes and chutes.
 
I just did a test print - which is the minimum size to cover that space -
to include the vents, chute - and enough screw holes - to screw something
down in a solid manner. This is that print out overlayed onto the rear
panel features - to make sure alignment looks good. Although, will admit -
I didn't try screwing it down - and I really should:
[image: ECC Rear Panel Details.jpeg]
 
And - for those that are interested - I'm attaching several STL files. One
represents the printed part you see above (Rear Details Test01.stl) - the
other represents the parts that make it up - which were used to cut the
vent & chute holes - as well as the screw holes - as well as the main shape
above - as well as a part that represents the full back panel of the
printer (ECC Rear Panel Parts.stl) - just in case anyone wants to play with
this stuff.
 
Now that I completed these 2 things (above layout test print - and the
prior thread confirming Max print volume in X & Y) - I can now move
forwards on the main project.
 
I shall keep folks posted!
 
*-K*
Kurt The 3D Printer GUY!! <vr...@optonline.net>: Mar 14 12:54PM -0700

So - here we go!
 
I had the block set as above - and the slicer had Stopped giving me
warnings. I figured it was GOOD - and I could print it. I set Infill, Top &
Bottom to Zero & NO Skirt or Brim - as I mentioned before. But, upon
slicing it - it gave an error - which did not happen Until I hit Slice:
[image: Bad_Slice_01.jpg]
 
So - I did a SLIGHT Tweak to Sizing & positioning - as such:
[image: Good_PreSlice_01.jpg]
 
Then - Viola - I hit Slice & it worked:
[image: Good_Slice_01.jpg]
 
And - print turned out fine:
[image: Print Volume Good Test.jpeg]
 
Now - for Anyone with an ECC that wants to try the same test - I am
attaching the project file!
 
*-K*
 
On Saturday, March 14, 2026 at 3:13:30 PM UTC-4 Kurt The 3D Printer GUY!!
wrote:
 
Sean <sean...@gmail.com>: Mar 14 03:55PM -0400

I'm sorry Kurt, if I was clear in my description. This image shows the
location of the plastic protrusion bit I was talking about. This is looking
into the machine from the top at an angle to see the front right upper
corner. The yellow would be the inside of the glass front door. The
protrusion sits inside a cavity in the green highlighted part. For some
reason the removable protrusion part is not showing up in the cad model.
But you can see the pocket where it should be and the threaded insert where
it would be bolted to in red.
 
 
 
On Sat, Mar 14, 2026, 3:13 PM Kurt The 3D Printer GUY!! <vr...@optonline.net>
wrote:
 
Kurt The 3D Printer GUY!! <vr...@optonline.net>: Mar 14 01:12PM -0700

No worries Sean - I saw it now. It took me going back and forth between
your email on my PC - and my printer in the other room - several times -
but, I find DID indeed see the part you are talking about.
 
Anyway - all is good - I got a fully maximized print volume - and it
printed a Nice square - literally ALL the way to the Left edge of the build
plate. So, yup - all good now.
 
-K
 
 
On Saturday, March 14, 2026 at 3:55:52 PM UTC-4 Sean wrote:
 
Sean <sean...@gmail.com>: Mar 14 04:17PM -0400

I haven't tried this yet. I'm only relaying info I learned in the CC FB
group. But I've wondered...
When doing this does the prime line still print? If so is it out of the way
of the full size print?
 
On Sat, Mar 14, 2026, 4:12 PM Kurt The 3D Printer GUY!! <vr...@optonline.net>
wrote:
 
Kurt The 3D Printer GUY!! <vr...@optonline.net>: Mar 14 01:26PM -0700

The prime lines DID indeed print.
 
Pardon the messy stove top - where I put the print job - but, you will see
the prime lines are there - and still kinda connected to the part -
although - askew - since they were indeed separated enough from the part:
[image: ECC Prime Lines.jpeg]
 
And yeah - the whole thing is flipped over - as the prime lines DO print in
lower left corner of build plate...
 
*-K*
 
On Saturday, March 14, 2026 at 4:17:47 PM UTC-4 Sean wrote:
 
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