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Jul 14, 2019, 04:34 AM
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TyberJV44's Avatar
Lynxman what 3d printer did you use for the he162. This thread has been awesome and I'm thinking of buying a printer to get into printing planes. This project of yours is a great inspiration for a lot of us.

Looking at the files did you make your own impeller as well?
Last edited by TyberJV44; Jul 14, 2019 at 04:55 AM.
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Jul 14, 2019, 09:54 AM
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Lynxman's Avatar
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I use a JGAurora A5 printer. It has a volume of 305x305x320 mm: https://www.banggood.com/custlink/3DGGZKNQg8

My next big printer will probably be an Anycubic Chiron, which I suspect is better: https://www.banggood.com/custlink/GDvmFE9SII

The impeller is 3D printed from PLA. I have 3D-printed the impeller in all my big jets.
Jul 14, 2019, 07:52 PM
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TyberJV44's Avatar
Your own impeller, that's impressive. I'm looking at the creality Cl10s, as it's in my price range. Also has 300x300x400 print area, Also updated with filament sensor and dual z axis screws.

Have you had any issues with strength of PLA as the impeller material?
Jul 15, 2019, 04:10 AM
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Hello Tyber,

I also do like the work of the Lynxman!

So I bought the CR 10 s Pro for the big Heinkel parts.
However,I have to send the printer back to the shop(guarantee)
Most likely the motherboard has died on me.....I also have 4 other 3D printers that are still working without any problems.

If the CR10 S pro has the same problem again this year I might look for an other 3D printer......

Greetings:Robin
Jul 15, 2019, 08:29 PM
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TyberJV44's Avatar
I was looking at getting mine from banggood, where did you get yours?

On another note once I get my printer I'm looking at scaling this down to 90mm fan size. 120 is just too big for me at the moment. With scaling down would there be many issue with doing so? The main issue I see would be the servo brackets, and fastener sizes. I guess lowering number layers etc would reduce the weight.
Last edited by TyberJV44; Jul 15, 2019 at 08:35 PM.
Jul 15, 2019, 11:24 PM
Plane crazy
Tartago's Avatar
I’m doing the same. Just keep the shell thickness.

LG is going to be an issue according to Lynx.
Jul 16, 2019, 08:05 AM
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TyberJV44's Avatar
I bought the files to print even though I don't have a printer yet. I really hope Lynxman gets a good cut from the cost of the files.

I've assembled it in Fusion360 to get a sense of how it goes together. Its a very impressive bit of kit, very clever use of cheaper components is just awesome. Really like how the LG and brakes work, the whole thing is a very elegant design.

I was looking at the STL files for the main LG, it will be difficult to resize them down to 90mm size aircraft. It may be possible to substitute the RC car suspension with an Oleo strut from another aircraft LG? I cant tell as the STL files scale weird in fusion.
Jul 23, 2019, 11:19 AM
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Lynxman's Avatar
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I'm printing a new impeller for the He-162. I'm going for the same pitch as I have on the EL-39 because it's such a good balance between power and duration (up to 8 minute flights). To achieve the same with the downloaded He-162 impeller you can scale the Z-height of the impeller model to 37 mm/95%.
Jul 23, 2019, 02:20 PM
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Lynxman's Avatar
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Gt the last piece of 4mm carbon tube for the "keel" of the airplane now. It goes through the Fuselage04 brace between the main gear doors, and all the way back to the end of Fuselage05 to add strength to that weak area, and to make the bottom of the airplane sturdier during transport and storage.

the closeup picture is shot through one wheel door opening and shows the 6 mm woven carbon fiber tubing reinforcements around the main gear area.
Jul 23, 2019, 07:30 PM
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TyberJV44's Avatar
Do you sand the impeller blades once printed or leave as is?
I'm curious as I'm thinking of printed this the scale you've made available instead of reducing for a 90mm fan. Printing out the edf would be a lot cheaper the buying one, already have 6s batteries I can use to make 12s.
Jul 24, 2019, 09:33 AM
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Lynxman's Avatar
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I only sand if they have tags and bumps from the print process. I don't sand smooth the layer lines at all. I don't think it matters. The same goes for the ducting.

Here's the new one I printed for the He-162. It came out as close to perfect as it gets.
Last edited by Lynxman; Jul 24, 2019 at 09:50 AM.
Jul 24, 2019, 02:32 PM
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Quick question on the printer you use, is it direct drive metal traverse rods like a prusa or tension belts like an ender? The quality of your prints are impeccable and looking to purchase a printer as well!
Jul 24, 2019, 02:41 PM
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Lynxman's Avatar
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Not sure what you mean but this was printed on a Wanhao Duplicator i3 which has belts on the X- and Y-axis and lead screws on Z. Ptined with 0,12 mm layer height.
Jul 24, 2019, 08:13 PM
Registered User
That was perfect, exactly what I was asking, thanks!
Jul 24, 2019, 09:26 PM
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Petroleum1's Avatar
Great job on the spatz its one of my fav jets. Here is mine it is a Peter Massinger kit .


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