3D Printed Jet Engine - Part 2: Printing & Processing

[@mayankwadhera2478]

Hey man, great video playlist for this 3d print. How did you remove the supports from the fan, I keep on breaking the fan blades from the bottom trying to remove the supports. Thanks

[@TacCom]

It's been a while, so I'm not 100% sure on this. I do remember them being rather thick connections, and I just had to take my time. The 3 things I could think of were: 1. Make sure temp isn't too high. If it is, it could cause the supports to "melt into" the part a bit and make it harder to remove. 2. Use some needle-nose pliars. Be careful, but just bend the support back and forth. I believe part of it snaps off, and then it kinda "tares". 3. Check layer height. This likely won't matter too much, but if you can get a layer to line up at the transition point, that may help. Perhaps the transition is right between layers, so it's interpolating between 2 thicker sections? I do remember these supports being rather thick, but of the 4 engines I printed, I don't recall breaking any of them, so I'm not entirely sure what the issue would be. Good luck!

[@mayankwadhera2478]

Thanks a lot!! I think my issue was that my temp was a bit too high 210° so I have lowered my temp to 195 and changed my retraction settings to combing mode. Hopefully it prints better, again thanks alot. Kinda surprised that you still repy to comments on your old videos and in such depth, alot of KZbinrs don't too that. Keep it up!🔥🔥

[@Jakob-yw8bd]

what kind of printer does he use?

[@TacCom]

Mine was done with a Prusa Mk3 with a stock 0.4mm nozzle

[@CalebPham-sz5sj]

Hey guys, I just found a for you guys to print parts without the flanges being really ugly. I used organic supports or tree supports and set the top interface layers to 10-15 so that they can just snap off of the print without leaving anything behind. The top interface layers is basically the layers printed in between the supports and the actual 3d print it self. To get them off, carefully use something that is somewhat long and has a thin flat head. Use the head to pry off the layer and there you have a nice lookin 3d print

[@TacCom]

I printed another one of these a few months back, and used organic supports for it. I forget my settings, but it was much nicer than the original ones I did. Next time I may try this method though and see how it goes.

[@andrew.conklin]

Hey, great video series. I’m curious about how you printed the rotors, did you print them with the included “with supports” file? if so how did you get the supports off? i’m not having much luck getting them off

[@andrew.conklin]

specifically the hpc rotors

[@TacCom]

Yeah, printed with the included supports. They came off pretty easily as a single ring. It did leave a few dots on the LE of the airfoil that I had to clean a bit. If it's too stuck on, try lowering the temp a bit so that they're less likely to fuse together. Layer height may also have something to do with it if the transition between support/airfoil doesn't line up very well.

[@homer090]

Im struggling to find the Fan with Supports in all the files, or is it a remix?

[@TacCom]

On vacation, so no good access to files currently. Check the regular "fan" model to see if it has supports. I'm not sure if there is a support-less fan model.

[@Eloy89Thrash]

Never thought I’d be interested in these types of videos on your channel, but this is pretty cool. This channel is so underrated.

[@TacCom]

Thanks! Besides these in this series , I don't have any plans on more 3D printing Vids. ...unless I do a real cool Gears print :)

[@SONIYAJADHAV-h8l]

from where can i get dimension of all parts plz re[ply I am using this as a course project

[@Frankz455]

in your excel, it shows 29 min to print the fan, but my slicer(cura) shows me 2 days 20 hours with a brim ?

[@TacCom]

Huh... That's certainly not right. Lemme check that excel sheet again. Are you sure that wasn't the spinner?

[@TacCom]

Okay, just looked. Those are Hour:Min. So it's actually 29 HOURS. Some of these parts took quite a long time.

[@Mr.Titanium1911]

I know this video is 4 years old and there is a good chance that you already know this, but I recently learned that PETG can be used as the support interface when printing PLA (and vice versa).

[@TacCom]

Yeah, I learned that a few months ago - makes me wish I had multi-material capability. Then again, it's quite wasteful. I actually printed another one of these recently and used organic supports in PrusaSlicer and had the settings dialed in much nicer.

[@elizabethdc2611]

Hi! Not sure if you're still reading comments..but I've recently started to do this print, but have been having some trouble fitting the LPT stators in? The LPT stage 1-4 ones seemed to fit fine, but the stators seemed too small to fit on the spool. Did you have to adjust yours? And if so, what adjustments did you make?

[@TacCom]

Yup, always reading :) Have you watched "part 3" (the assembly video - not condensed version)? I don't remember having much of an issue with the stators. I know there was an issue with getting the aft section / diffuser attached to the LPT module, but that's a later step.

[@RadicalRacoon]

Really appreciate the videos! I have just started printing the pieces and am unsure of what color scheme I want to go with. Do you have any recommendations for ways to visualize how a scheme would look? Awesome videos by the way, earned my sub!

[@TacCom]

Thanks for the sub... But just FYI, the 3D print videos are pretty rare - it's mainly a Gears of War Channel. As for colors, what did you have in mind? If you look at the "makes" section of the thingiverse page, you'll see some cool ideas that may give some inspiration.

[@timsung7688]

do you still remember how many kgs of filament you used to print all the parts? Thank you in advance!

[@shanerussell7335]

Around 1.5kg total. I used white for the main parts, silver for the "spinning" parts, black for the cones in the front and back, red for the combustion section, and blue for the compressor section. It's a great project, but be prepared for a few weeks for printing, cleanup, and assembly.

[@AndyFilmsUK]

What speeds would you recommend when you say to "turn the speeds down" especially for the fan?

[@TacCom]

For most parts, I have 20mm/s on Perim, 10mm/s external perim, 150mm/s on infil, and 30mm/s on top solid infil. That's on a Prusa Mk3. I can't really speak for other printers though.

[@keithbecker3142]

Any luck ever finding a way to keep the underside of overhangs nice after tearing off the supports? Like the casings flanges. I'm using tree supports in Cura but it's still leaving "unfinished/unfused" lines on the bottom. Thanks for these vids! Only have 2 more parts to print!

[@TacCom]

Unfortunately, no. I was actually thinking about printing another one soon though. So I may do some research again. I hear some people have had some pretty amazing results from some of the latest settings in Prusa Slicer, so I'll be checking that out.

[@rtwileyrc8030]

Use my remix. No supports are required at all for the flanges. They’re printed separately and glued together.

[@matthewhurlburt9817]

Hey! how did you get the cool pattern on the spinner tip?

[@TacCom]

It's printed as 2 separate pieces - 1 white and 1 black. The black had a groove so that the thin white strip could be glued into place.

[@hectormondragon7294]

Do you have the speed setup for the fan?

[@TacCom]

Sorry, missed this comment. When you say "speed setup", are you talking about print-speed? If so, I believe the settings I used were: - Perim: 20 mm/s - Small Perim: 10 - External Perim: 10 - Infill: 150 - Top Infill: 30

[@bessalf]

How did you modify the combustion 02:33 in your video to get rid of that massive overhang? Thanks for the videos by the way..

[@TacCom]

I didn't actually do the modification. If you go to the page for engine and go to "remixes", you'll find the new combustion chamber in there. It's a design from someone else.

[@bessalf]

@@TacCom Thanks for the quickly reply. Sorry for the stupid question, but where is "page for engine" to find "remixes"?

[@TacCom]

Engine: www.thingiverse.com/thing:1327093 Remix: www.thingiverse.com/thing:1327093/remixes Remix in Question: www.thingiverse.com/thing:2441852 Other Option 1: www.thingiverse.com/thing:3781509 Other Option 2: www.thingiverse.com/thing:3327036 (haven't tested these myself)

[@bessalf]

@@TacCom thanks man!!

[@bessalf]

@@TacCom sorry bothering you again, I got the remixed file and not sure what happens in the slic3r that the built in support for the fan stator casing and combustion chamber get messed up after sliced. Did you hv anything related when printing?

[@shanerussell7335]

Buried in the Thingiverse zip file is the full STEP of all of the parts assembled. I loaded this STEP file into Fusion 360 and created custom support for those tabs. It worked like a charm.

[@7378ngx]

Do you by any change still have the STL? And do you maybe want to share them.

[@shanerussell7335]

@@7378ngx I'm sorry. I removed the files a long time ago to save space.

[@timsung7688]

​@@shanerussell7335 how many kgs of filament did you use to print all the parts?

[@TacCom]

I don't recall off of the top of my head. I think it's in the description. If not on this video, then I know it's in the assembly videos.

[@timsung7688]

GowTac-Com Thank you! I found them