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So I slowed down the print and that took care of the issue. But I’d like to speed it back up so it doesn’t take as long to print. I watched the print for a few minutes today and noticed the holes are on the side of where the nozzle returns to the part. I’m thinking that either increasing the Extra Restart Distance or decreasing the Wipe Distance should fix this. Am I right?
I would say…Yes it is worth it. I bought my Anet A8 back in June with the main purpose for printing these planes. I spent all this time up to last night tweaking Cura and trying to get the new versions of Cura to work with the settings to get an acceptable part. I got to the point I could print 1 piece at a time and only had problems when printing the tail. I kept having holes show up in the tail. Originally I thought this was from my PLA absorbing water. I tried drying out the PLA and the holes decreased but were still there. Last night I tried out Simplify3D…the first 2 prints I was getting some stringing but far less than with Cura, and it was printing 4 parts at once vs 1 part with Cura. Then I had a problem with the filament feeding. I dropped the temp to 220 and the stringing reduced and the print went further before the extruder jammed up again. On the 3rd print down to 210 and got a near perfect print with almost no stringing at all. Even if I end up still using Cura for other prints…just for printing these planes alone the purchase was worth it.
Lowering the temp to 210 pretty much perfected my print. The difference between Cura and Simplify3d is night and day! With Cura I kept getting holes in the tail section. With Simplify3d the print is pretty much perfect. First pic, tail from Cura. Second pic, tail from Simplify3d.
Well it looks like pic uploading isn’t working right now so I’ll have to upload them later.
OK cool…I wasn’t sure on that because with my Cura prints it did not do this. I am getting some stringing but it is far far less than what I was getting with Cura. However I am now getting nozzle clogs that I never got before. I suspect it may have to do with the temp. Sometimes I think the heat brake doesn’t get enough cooling. I lowered the temp down to 210 and the stringing is almost completely gone now. It is amazing how much better the prints are coming out with Simplfy3d compared to Cura. I can’t wait for my new roll of PLA and PETG to come in so I can start printing again.
Alex which hardener did you use?
Unfortunately the search function is not working properly on the forum.
Thanks I’ll look into that
Well my next one I am planning on painting so I wonder if there is a paint or coating that can be used to help make them less susceptible to sun damage…avoiding that in Hawaii is difficult.
2nd question…The FAQ mentions PETG has been used as well. The guides I’ve read for printing PETG say to use a cooling fan. For PLA the 3dlabprint settings is no fan…should I use a fan with PETG or stick with no fan?
I’m finding regular PLA to be too brittle and warps too easily in the heat out here in Hawaii so I’m looking for alternative materials.
I think I found the problem…moisture in the PLA. I wasn’t getting the usual symptoms but decided to try drying out one of my spools and I got a much better print…holes were almost completely gone. Odd how it would always only affect 1 area of the print but the results are pretty conclusive. So now I’ve picked up a well sealed cooler and some silica sand cat litter to store my spools in. Lesson learned.
15.04.4 doesn’t have that setting as far as I know.
Ok so I’ve tweaked my settings further so I get less stringing now, my parts are right at the target weight, and layer adhesion is really good. I finally had my first successful complete flight without breaking the plane on landing. So the changes I’ve made have helped but I still can’t print more than 1 piece at a time. I can live with that…but I’m still having a problem printing the tail. I’m getting holes along the downward angle. I slowed down the print some and that helped but didn’t cure it. When I watched the print it looks like it is happening where the extruder resumes after hopping across from the up angle side. Any suggestions on other ways to fix it other than slowing it down? I’m now printing what I hope to be my final version instead of the tests I did previously. So this one I plan to paint up to look more scale. So I need to fix the holes so the area paints properly.
Well I’ve settled on some settings that I think are good enough for now. I’d still like to get them better refined but these will work. My 1st wing piece came out about 4g over weight so it is pretty close.
Taking out the Z hop helped some. There are still holes but they are less and smaller. It’s almost as if then the extruder comes back around to it’s starting point it stops like .5mm short of completing the layer. Is there any setting to have it go just a bit further?
Ok I’ve slowed it down to 30mm/s and tried increased heat and flow rates…as much as 115% already and I’m STILL having this issue! ARRRGH! The last plane I printed I didn’t use any Z hop but I put some in this to try and get rid of stringing…could that be causing the holes and thin streaks?
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