Announcement

**Elbee** · Dec 15, 2020, 06:28 PM

[QUOTE=Radar-Guy;n290242The files for the nozzle are available for a fee on cults 3d.In addition, I've uploaded a file for the ventral air scoop that was omitted by the designers of the model. This one is for free.[/QUOTE]

RG, Absolutely phenomenal designs. Bravo Zulu, Sir and thank you. Best, LB

**Johnnyb** · Dec 16, 2020, 08:20 AM

Update 3D printing parts for Mig 29

Nose retract brace for Freewing Mig-29 by mshagg

https://www.thingiverse.com/thing:4629598

This is an upper and lower brace to better secure the front retract and its housing on the Freewing Mig 29. Bill of materials: Top plate (from this thing Retract plate (from this thing) 4-40 allthread (12in should be sufficient) 4-40 locknuts (x8) The parts should be printed at relatively high infill for maximum strength. Basic installation instructions (you'll figure it out!): Remove middle battery tray with 4 screws. Those screws are no longer needed. Remove second piece of plywood from battery area, which is secured to the retract housing with two screws. It's glued to the foam so might need some gentle prying. Press 4 locknuts into the provisions made in the retract plate Test fit and measure the length of 4-40 allthread you need, cut 4 identical sections. Make them a little longer than you think you need. you will likely need to enlarge the holes in the retract mount. Then just press the rod through the foam unil it pops out the top. Make sure it goes in straight! Thread rod into the locknuts which are pressed into the retract plate Place retract plate onto retract and insert the assembly. Trim threaded rod as needed - remember you will have a battery sitting on top of this, so make sure nothing protudes above the top plate! Remove battery strap from original tray and fit it to the top plate. Place top tray into position, making sure the threaded rods align with the holes in the plate. Replace two screws from the original lower plywood tray Secure locknuts into position on the threaded rod, and tighten the top plate down evenly. Grind down any excess threaded rod protuding from the upper locknuts - it's ok to have excess on the lower locknuts, so long as they dont interfere with the steering tiller.

Camera mount plate for Freewing missile rails by fredmdbud

https://www.thingiverse.com/thing:4684952

Basic mounting plate compatible with Freewing missile pylons (was specifically designed for the Freewing 80mm MiG-29). V3 set is tuned for better tab fit, flush surface

Freewing pylon by fredmdbud

https://www.thingiverse.com/thing:4685795

Basic Freewing pylon (designed specifically for the MiG-29)

B-8M1 rocket launcher for ArrowsRC MiG 29 by kallend

https://www.thingiverse.com/thing:4613698

I scaled and modified this from Dirty Dee (Chris Garca)'s design for the Freewing MiG 29, and I added a mounting rail and lug to fit the ArrowsRC wing. It is in several parts for ease of printing. I printed with 5% infill except for the lug, which needs to be solid. Print as light as possible if you intend to fly with it.

Vympel R-73E missile 1/9 scale by bettsmums

https://www.thingiverse.com/thing:4602260

This is a Russian R-73e heat seeking air 2 air missle and weapons pylon in 1/9 scale. They are suitable for the Freewing MIG-21 and MIG-29. The lower part of the missile is 240mm tall so it takes a larger printer. The missile and the pylon use the Freewing F-16 weapons mounting hardware. The MIG-21 in the photograph has a modified stock pylon that holds the fuel tank and the 3D printed one was added between that and the landing gear. I used epoxy to glue the missile parts and the attachments to the pylon.

FAB-500 M62 Bomb for Freewing Mig 29 by mshagg

https://www.thingiverse.com/thing:4625201

A 1:9 scale high explosives bomb to fit the Freewing Mig-29 dual 80mm EDF. Print parts, glue parts, paint parts. Accepts the standard freewing weapons mount (https://www.motionrc.com/products/freewing-f-16c-90mm-weapons-attachment-hardware) or print one of the ones available on here. Print with a single layer outline and 5% infill - it will be light and strong.

Exhaust Nozzle for Freewing MIG - 29 by SMCAREY

https://www.thingiverse.com/thing:4659231

Mig - 29 Exhaust Nozzle for Freewing twin 80 mm EDF Jet

https://cults3d.com/en/3d-model/vari...DkypmedJEd9wt4

https://cults3d.com/en/3d-model/various/freewing-mig-29-ventral-air-scoop

johnnyb

**Radar-Guy** · Dec 16, 2020, 09:18 AM

One is missing:

Gone・Cults

https://cults3d.com/en/3d-model/various/freewing-mig-29-ventral-air-scoop

More to come soon...

Frank

**HK111** · Dec 16, 2020, 03:33 PM

Hello Frank,

is there a chance that you would design a "brace" or "reinforcement piece" for the elevator mounts? I could chip in some money for the development costs.

Cheers,
Henrik

**Dirty Dee** · Dec 16, 2020, 09:06 PM

Originally posted by Radar-Guy View Post

One is missing:
https://cults3d.com/en/3d-model/vari...tral-air-scoop

do you have a reference picture showing where the ventral scoop is to be installed?

great work!

**RC30Flyer** · Dec 16, 2020, 11:42 PM

Quick question... anyone have a concern about the BEC not getting any cooling air over it? I don't see any way to keep it cool with it in the battery bays or nose. Feels like its getting pretty warm just sitting there powered up. Should I be concerned about this?

**Scale Master** · Dec 16, 2020, 11:46 PM

Can someone print a set of the exhaust nozzles and sell them to guys like me who don't have a 3D printer?

**Radar-Guy** · Dec 17, 2020, 12:08 AM

Originally posted by Dirty Dee View Post

do you have a reference picture showing where the ventral scoop is to be installed?

great work!

Thanks! Please see attached pic. Useful drawings are available here:

Уголок неба ¦ Чертежи

http://www.airwar.ru/other/draw/mig29.html

**Radar-Guy** · Dec 17, 2020, 01:07 AM

Originally posted by HK111 View Post

Hello Frank,

is there a chance that you would design a "brace" or "reinforcement piece" for the elevator mounts? I could chip in some money for the development costs.

Cheers,
Henrik

Servus Henrik,

Sorry, no. Based on my flights with the MiG and all the information available on various forums I don’t see a need for such parts (even with my 6,2 kW Wemotec upgrade). I’m currently repainting mine and I will follow the idea to insert some flat carbon strips parallel to the vertical stabs.

Frank

**HK111** · Dec 17, 2020, 01:21 AM

Originally posted by Radar-Guy View Post

I will follow the idea to insert some flat carbon strips parallel to the vertical stabs.

That also should work, sure. Fair enough and thanks for the response.

**GliderGuy** · Dec 17, 2020, 02:25 AM

Originally posted by HK111 View Post

That also should work, sure. Fair enough and thanks for the response.

Hi Henrik - Some expressed concern about the plastic support box for the FFSs potentially separating from the foam after many, many flights. I added some 0.5 mm carbon planking to the bottom to address this. Also adds a bit of stiffening to this area.

Be sure to extend the front edge of the carbon enough to cover the front glue joint between the plastic box and foam.
-GG

**GliderGuy** · Dec 17, 2020, 02:42 AM

Originally posted by RC30Flyer View Post

Quick question... anyone have a concern about the BEC not getting any cooling air over it? I don't see any way to keep it cool with it in the battery bays or nose. Feels like its getting pretty warm just sitting there powered up. Should I be concerned about this?

Howdy RC30Flyer - I extended the BEC wire and hot glued it flat side down to the foam in the wing root area by the rear battery bay. So...only one side gets exposed to the air for cooling.

Commercial IC products recommended operating temp range is 0C to 70C (32F to 158F)....sometimes Tambient...sometimes Tcase. That’s a lot hotter than “warm”.

I flew mine almost continuously (not much delay between flights) on days when the free air temp was near 38C (100F), and I did touch the BEC periodically. It never felt “HOT”....only warm.

If you have concerns, hot glue it so it stands vertically on edge so air can get to both sides. That is about as good as you can do. I may also remount mine standing on edge so air can get to both sides before the coming summer heat. Or...You can always give it a cool down period between flights. Cooler is always better for electronics.

If you have serious concerns, you can buy a tiny brushless 5 volt case cooling fan to blow air over the BEC, but that may be going to the extreme.

-GG

**leithalweapon** · Dec 17, 2020, 05:15 PM

Originally posted by RC30Flyer View Post

Quick question... anyone have a concern about the BEC not getting any cooling air over it? I don't see any way to keep it cool with it in the battery bays or nose. Feels like its getting pretty warm just sitting there powered up. Should I be concerned about this?

The fact the battery bays have no vent holes should have been a concern to the designer. Poorly.thought out.

**GliderGuy** · Dec 17, 2020, 06:02 PM

Originally posted by leithalweapon View Post

The fact the battery bays have no vent holes should have been a concern to the designer. Poorly.thought out.

The fuselage is hollow aft of the aft battery bay and there are already openings into this hollow from the aft battery bay. Would it help to cut a hole in each intake tunnel forward of each fan that reaches into the hollow fuselage cavity? The canopy does not fit that tightly and should allow some air flow. Comments?

-GG

**xviper** · Dec 17, 2020, 07:22 PM

I've not found external BECs to get "hot", even in the heat of the summer. It's the ESCs that can get hot and if it has a built in BEC, then it can get hot, too.

**Radar-Guy** · Dec 18, 2020, 02:13 AM

Here's a file to print the "flare canister".

Gone・Cults

https://cults3d.com/en/3d-model/various/freewing-mig-29-flare-canister

**Evan D** · Dec 18, 2020, 07:09 AM

I know I'm being picky but the L and R on the stabs there really bug me.

**t33jetman** · Dec 18, 2020, 07:24 AM

Originally posted by Evan D View Post

I know I'm being picky but the L and R on the stabs there really bug me.

**xviper** · Dec 18, 2020, 08:46 AM

Duct tape hides all.

**kallend** · Dec 18, 2020, 10:49 AM

Originally posted by GliderGuy View Post

Hi Henrik - Some expressed concern about the plastic support box for the FFSs potentially separating from the foam after many, many flights. I added some 0.5 mm carbon planking to the bottom to address this. Also adds a bit of stiffening to this area.

Be sure to extend the front edge of the carbon enough to cover the front glue joint between the plastic box and foam.
-GG

Admittedly the ArrowsRC MiG29 is a lot smaller, but the way the FFS pivot supports are engineered on that model is significantly stiffer than on the FW MiG, without compromising the scale appearance. No doubt a bit heavier, but both models ended up nose heavy anyway.

Announcement

Official Freewing MiG-29 Fulcrum Twin 80mm Thread

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