Egilman Posted May 22, 2022 #1 Posted May 22, 2022 Hi Brothers... It was suggested that I post this here to bring it to a more appropriate forum for it all cad work and 3D test printing... I've been at it for five weeks now over in my F-86F thread.... Essentially I've learned enough that I've just embarked on version 5 of the design.. Currently it is only half designed, the forward half.... So what is a J-47GE-27? A J-47GE-27 is the engine that powered the F-86F day fighter, the plane that took the Mig 15 to task over China/North Korea during the Korean War... My sources of info are of course the US Airforce tech manuals and HD videos from the company that refurbishes them today... It is the most produced Turbojet engine in history with well over 30,000 of them produced... And powered everything from the F-86 to the pylon engines of the B-36 & B-47.... Today, they are being used in race boats and land speed record cars, with a healthy industry of rebuilding them for aircraft restorations... Of course, HD video snapshots help a great deal as well... I'm using two pieces of software for this, Solidworks for the 3D modeling, and Gimp for the HD image scaling/measuring .... The Image above in Gimp has been leveled and enlarged to full size, (yes the intake diameter is really 3 ft across) the blue dashed lines are index lines I use to measure various sections... In Solidworks, I use the cutaway drawing and basic dimensions from the TO's & TM's to scale the drawing to full size and set it as a locked background image to start the process... and I model from there.... This is as far as I've gotten... At this point I started 3D printing to test if it is going to come together correctly.... And I learned a few of the limitations of scaling and 3D printing... 1/32 scale is a scale in which the item cannot be an identical representation of the real thing... Allowances in both look and design need to be made to get something that will closely resemble a J-47... A larger scale will be easier to do not so much compensation has to be made... Anyway this is where I'm at at this point in the journey... Starting the 5th generation of iterative design... Essentially to get the 3D print requirements satisfied and still produce a good scale model.... EG Everyone is welcome to follow along and offer your suggestions or condolences.. All are welcome... flying_dutchman2, lmagna, reklein and 9 others 9 3 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 24, 2022 Author #2 Posted May 24, 2022 (edited) Ok brothers an update here... Progress has been made on Version 5... (a bit slow still dealing with RL here so please bear with me) This is being designed in full scale 1/1 size, so I've had to adjust to the scaling issue 1" in 1/32 scale = .03125" in the model so things I would normally model like fillets and chamfers and the like aren't going to be modeled cause you will not perceive them on the printed model.. Much like designing a plastic injection kit you have to adjust for the medium and tools being used.. So, if it looks a bit plain that is why... The engine is broken into sections the first being the accessory section... This is where all the little bits that start it and keep it running are located... (generator/starter, compressors, pumps and such small stuff) I know it doesn't look like much It is covered with a fairing that bends downward to accommodate the air flow ducting in an F-86... (the airflow runs under the pilots seat so the duct comes up to the engine from the bottom) The fairing is shaped to keep the airflow smooth as it enters the Intake Plenum.... The hole in the tip permits cold air to flow to the Starter/Generator to keep it cool... Backside... This is where you see the major change to the design.... I originally used 4" as the wall thickness, (4" = 1/8th", .125" in scale) this was causing adhesion problems during printing as when the part is angled it increases the area under exposure beyond the ability of the plate and supports to hold it, hence print failures.... So I reduced the wall thickness down to 2" ( 2" = 1/16th", .0625" in scale which is smaller than the 2mm, (.0787") wall thickness that the slicer software uses when hollowing out models) The flange holes are 1" in dia, and give a place for excess glue to run when gluing together... They will also help with preventing resin capture while printing... The next section is the intake portion of the engine.... It consists of the center hub which carries the transmission to drive all the accessories off the main shaft and also provides the support for the 4 intake vanes... The Vanes carry the external hose, tubing and wiring connections to the aircraft and other parts of the engine, they also provide heated air to the compressor of the engine for anti-icing purposes... Around the outside of the Vanes is the Intake Plenum itself this consists of eight sheet metal parts bolted together into a single part... There are four sector sections and four of what are called "Air Islands" which serve as the pass thru panels for all the external connections... And last but not least are the FOD screens, below is a better image of them from an earlier version... They are moveable on the real aircraft and automatically open when all risk of ingesting foreign matter is past, they are mounted to the Intake Sectors in pairs on the quadrants between the vanes and around the outside are the mechanical actuators that make them open and close... The back side... The slots you see in the screens actually cut all the way thru to the back side, this provides resin drainage and suction prevention while printing with the same flange holes for glue relief... (I'm probably going to push those holes all the way through the front as well, cause more surface area is better for gluing... I'm probably going to be using Gators Grip when the time comes to glue it together.. It's a PVA glue that operates on space filling friction for it's hold on parts, it is a favorite of the PE gluing modelers cause it's hold in my opinion is superior to CA's, the typical superglues.. So, more surface area is better... The assembly currently looks like this.... Will be proceeding on with the redesign of the third section the Compressor Forward Frame.... Onwards.... EG Edited May 24, 2022 by Egilman Jolley Roger, Landlubber Mike, mtaylor and 4 others 6 1 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 24, 2022 Author #3 Posted May 24, 2022 Update: I went ahead and pushed the holes thru.... That will work much better for spreading the glue around... Thank you for following... EG mtaylor, reklein, Landlubber Mike and 5 others 4 4 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Jolley Roger Posted May 25, 2022 #4 Posted May 25, 2022 Fascinating stuff EGM! Hats of to the engineers of the time that laid the foundation for the modern jet engine and to you for educating us. Just love it! Egilman, mtaylor, lmagna and 3 others 5 1 Quote Samuel Pepys notes in his diary on 19 July 1667: "the Dutch fleets being in so many places, that Sir W. Batten at table cried, By God,says he, I think the Devil shits Dutchmen."
Egilman Posted May 25, 2022 Author #5 Posted May 25, 2022 11 hours ago, Jolley Roger said: Fascinating stuff EGM! Hats of to the engineers of the time that laid the foundation for the modern jet engine and to you for educating us. Just love it! My Pleasure! My second hobby is doing research, I think it adds to the build experience to know what is being modeled more than just a name.... I'm very happy you are enjoying it.... Thank you... Landlubber Mike, Old Collingwood, Canute and 3 others 6 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 25, 2022 Author #6 Posted May 25, 2022 (edited) Another small update, I added the bolts for the main compressor body flanges.... That's a detail that will show.... Next up the Main Compressor Body.... Onwards.... Edited May 25, 2022 by Egilman Jolley Roger, mtaylor, Old Collingwood and 3 others 5 1 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 26, 2022 Author #7 Posted May 26, 2022 A short update showing progress on the Main Compressor Body.... She's coming along.... Onwards! EG king derelict, mtaylor, Landlubber Mike and 4 others 5 2 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 26, 2022 Author #8 Posted May 26, 2022 Another small update.... Final basic details on the Main Compressor Body... Flange Bolts and Air Bleed Bosses.... On to the Aft Compressor Frame... EG Jolley Roger, mtaylor, Old Collingwood and 2 others 5 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 27, 2022 Author #9 Posted May 27, 2022 Another short update brothers.... We have an aft frame.... Still have some detail work to be done, But I went ahead and lofted the insides, more difficult to do but easier on the printing... (besides, it looks nicer) And you can see right through it .... Anyway, a few more details and then what I hope will be a confirmation print... Keeping my fingers crossed.... EG Jolley Roger, lmagna, king derelict and 3 others 6 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Canute Posted May 27, 2022 #10 Posted May 27, 2022 Keep at it, EG. The engine is looking good. king derelict, mtaylor, Old Collingwood and 2 others 4 1 Quote Ken Started: MS Bounty Longboat, On Hold: Heinkel USS Choctaw paper Down the road: Shipyard HMC Alert 1/96 paper, Mamoli Constitution Cross, MS USN Picket Boat #1 Scratchbuild: Echo Cross Section Member Nautical Research Guild
Egilman Posted May 28, 2022 Author #11 Posted May 28, 2022 17 hours ago, Canute said: Keep at it, EG. The engine is looking good. Thanks Ken.... It's a bit simpler version than Version 3 but it still effectively captures the elements... The Aft Compressor Frame is now rebuilt... Not as complicated and smoother fewer drawing elements, I simplified design a bit as well the aft flange I doubled in thickness so hopefully with the greater relief to the joining parts I don't break it again when assembling... They should just slip right together, if they print well and slide together smoothly, I'll glue them up and continue on to the Burner Cans, Turbine and Exhaust Cone.... Keep your finners crossed... {chuckle} EG Old Collingwood, Jolley Roger, king derelict and 3 others 6 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Canute Posted May 28, 2022 #12 Posted May 28, 2022 Looks like you captured the transition nicely. Good luck with the print. mtaylor, Old Collingwood, king derelict and 1 other 3 1 Quote Ken Started: MS Bounty Longboat, On Hold: Heinkel USS Choctaw paper Down the road: Shipyard HMC Alert 1/96 paper, Mamoli Constitution Cross, MS USN Picket Boat #1 Scratchbuild: Echo Cross Section Member Nautical Research Guild
Egilman Posted May 28, 2022 Author #13 Posted May 28, 2022 Well, they are aprinting..... {chuckle} It's at layer 40 says it will be done around 9:00am... 2.5 hrs from now.... I hope it comes out... lmagna, Canute, mtaylor and 2 others 5 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 28, 2022 Author #14 Posted May 28, 2022 Well, they finished printing, they have been washed, drying now.... We will soon see if the redesign was a success........ I certainly hope so.... More in a few... EG NavyShooter, mtaylor, lmagna and 4 others 7 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Canute Posted May 28, 2022 #15 Posted May 28, 2022 Oh, the fun of removing all those little fingers. I gave my sprue nipper a workout cleaning up some doors and air brake gear on one kit. Egilman, lmagna, Old Collingwood and 2 others 5 Quote Ken Started: MS Bounty Longboat, On Hold: Heinkel USS Choctaw paper Down the road: Shipyard HMC Alert 1/96 paper, Mamoli Constitution Cross, MS USN Picket Boat #1 Scratchbuild: Echo Cross Section Member Nautical Research Guild
Egilman Posted May 28, 2022 Author #16 Posted May 28, 2022 30 minutes ago, Canute said: Oh, the fun of removing all those little fingers. I gave my sprue nipper a workout cleaning up some doors and air brake gear on one kit. I just gave mine the workout... Yep, next time 10 mm on the height off the build plate.... 5mm is a bit tight.... According to Lychee, I used almost as much resin in the supports as I did in the parts... Well did it work is the big question.... Yep, they all slide together, smooth push fit... I can relieve the depth on the male mating parts another .10 step so they seat better but other than that perfect... Some detail.... 45 deg is the right angle and smaller supports and more of them is the ticket.... Still need a bit of minor cleaning but other than that good to go... So I guess I'll be deciding on how I want to assemble these, paint first or assemble then paint.... Anyway, on to the rear half of the engine.... YAY TEAM!!!! It really works... EG mtaylor, Jolley Roger, king derelict and 6 others 8 1 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
mtaylor Posted May 28, 2022 #17 Posted May 28, 2022 Congrats on success!!! Looks good and well worth the learning curve. lmagna, king derelict, Old Collingwood and 2 others 4 1 Quote Mark "The shipwright is slow, but the wood is patient." - me Current Build: Past Builds: La Belle Poule 1765 - French Frigate from ANCRE plans - ON HOLD Triton Cross-Section NRG Hallf Hull Planking Kit HMS Sphinx 1775 - Vanguard Models - 1:64 Non-Ship Model: On hold, maybe forever: CH-53 Sikorsky - 1:48 - Revell - Completed Licorne - 1755 from Hahn Plans (Scratch) Version 2.0 (Abandoned)
Jolley Roger Posted May 29, 2022 #18 Posted May 29, 2022 Brilliant! Old Collingwood, Egilman, king derelict and 2 others 4 1 Quote Samuel Pepys notes in his diary on 19 July 1667: "the Dutch fleets being in so many places, that Sir W. Batten at table cried, By God,says he, I think the Devil shits Dutchmen."
Egilman Posted May 29, 2022 Author #19 Posted May 29, 2022 15 hours ago, mtaylor said: Congrats on success!!! Looks good and well worth the learning curve. 5 hours ago, Jolley Roger said: Brilliant! Thank you both, I knew if I just kept hacking away, eventually something might come out looking decent.... Now the Combustion Section, 9 parts, An Arbor... Gotta have something to hold the hot stuff... And a bunch of tin cans that need holding... {chuckle} (literally, they are nothing but sheet metal cans) A few more details to go like the W/A injection rings, the cross fire tubes and the ports for the ignitors... Other than that the Burner Cans are done... The arbor on this gave me a few fits, the cans were actually fairly easy to replicate... It should get easier from here... Onwards... EG lmagna, mtaylor, Jolley Roger and 3 others 6 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
king derelict Posted May 30, 2022 #20 Posted May 30, 2022 Looks great.it's becoming a work of art Alan Old Collingwood, mtaylor, Egilman and 1 other 3 1 Quote
starlight Posted May 30, 2022 #21 Posted May 30, 2022 Very cool! I spy some underdefined sketches and mates. All joking aside, it looks great. Cheers, starlight lmagna, Old Collingwood, Canute and 2 others 4 1 Quote
Canute Posted May 30, 2022 #22 Posted May 30, 2022 Nice print. Cleaned up nicely. And your combustor cans are looking good mtaylor, lmagna, Egilman and 1 other 3 1 Quote Ken Started: MS Bounty Longboat, On Hold: Heinkel USS Choctaw paper Down the road: Shipyard HMC Alert 1/96 paper, Mamoli Constitution Cross, MS USN Picket Boat #1 Scratchbuild: Echo Cross Section Member Nautical Research Guild
lmagna Posted May 30, 2022 #23 Posted May 30, 2022 At last we get to the first stage of the money to noise conversion section. Congratulations on your results so far. VERY impressive. mtaylor, Egilman, Old Collingwood and 1 other 3 1 Quote Lou Build logs: Colonial sloop Providence 1/48th scale kit bashed from AL Independence Currant builds: Constructo Brigantine Sentinel (Union) (On hold) Minicraft 1/350 Titanic (For the Admiral) 1/350 Heavy Cruiser USS Houston (Resin) Currant research/scratchbuild: Schooner USS Lanikai/Hermes Non ship build log: 1/35th UH-1H Huey
Egilman Posted May 30, 2022 Author #24 Posted May 30, 2022 4 hours ago, king derelict said: Looks great.it's becoming a work of art Alan Work of art remains to be seen my friend, but I'm tryin... Thanks... Old Collingwood, mtaylor and lmagna 3 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 30, 2022 Author #25 Posted May 30, 2022 3 hours ago, starlight said: Very cool! I spy some underdefined sketches and mates. All joking aside, it looks great. Cheers, starlight I know, I know, several holes as well... {chuckle} Thank you, it's appreciated.... mtaylor, Old Collingwood, king derelict and 1 other 4 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 30, 2022 Author #26 Posted May 30, 2022 3 hours ago, Canute said: Nice print. Cleaned up nicely. And your combustor cans are looking good Thanks Brother... I think it came out fairly well... I'm going to need to tweak the burner cans a bit, I think they are a bit too fat right now, but they do look the part... king derelict, Canute and Old Collingwood 3 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 30, 2022 Author #27 Posted May 30, 2022 1 hour ago, lmagna said: At last we get to the first stage of the money to noise conversion section. Congratulations on your results so far. VERY impressive. Thank you very much Lou, I'm a trying to do a decent job... It's really, really appreciated... The whiny part is finished, now for the roar... {chuckle} Old Collingwood, lmagna, Canute and 1 other 4 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Egilman Posted May 31, 2022 Author #28 Posted May 31, 2022 (edited) Latest update Brothers.. I spent the day tweaking the Combustion Section Design for fit and appearance, there is still one question to decide, do I print it as one piece or as nine separate pieces... I think I'm going to try one piece first and see how it goes... Complete section... Still lacking some of the details, tweaking it really took all day... The cans were initially 3/8th too large leaving a gap between them of only 1/4 inch, that had to be at least an inch apart to accommodate the crossfire tubes... They now are.... The Combustion Section Frame... Making the cans a bit smaller allowed me to maintain the indexing/attachment rings on both ends, (male/female) so they are consistent on each section from front to back... But it is clear I did have to reduce the diameter of the middle section to accommodate the burner can size... This gave it a unique ribbed look once the ring holes were punched thru... So I went ahead and filleted them to eliminate all the sharp corners and it came out with that corrugated look, it works for me, reduces the resin amount and adds strength exactly where it is needed... Back Side... The back flange is going to remain plain, there is nothing there which will be seen aside from the bolt pattern... Burner Cans,, I gave them the polished steel look which is more representative of real life.... (a nice contrast to the rest of the colors) Back Side.... Just a couple of details to add and it will be complete.... Thanks for following and all the complements... It's greatly appreciated... More updates later... Onwards! EG Edited May 31, 2022 by Egilman mtaylor, NavyShooter, Jolley Roger and 5 others 5 3 Quote Current Build: F-86F-30 Sabre by Egilman - Kinetic - 1/32nd scale In the Garage: East Bound & Down, Building a Smokey & the Bandit Kenworth Rig in 1/25th scale Completed: M8A1 HST 1930 Packard Boattail Speedster M1A1 75mm Pack Howitzer F-4J Phantom II Bell H-13's P-51B/C Temporary Suspension: USS Gwin DD-433 F-104C Starfighter "Blue Jay Four" 1/32nd Scale Terminated Build: F-104C Starfighter ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Quote: "Relish Today, Ketchup Tomorrow"
Nirvana Posted May 31, 2022 #29 Posted May 31, 2022 I am very much into 3D drafting but using Fusion360 and SketchUp. This turbin looks amazing, great job. Wish I had the same skills. Canute, Old Collingwood and mtaylor 3 Quote Please, visit our Facebook page! Respectfully Per aka Dr. Per@Therapy for Shipaholics Finished: T37, BB Marie Jeanne - located on a shelf in Sweden, 18th Century Longboat, Winchelsea Capstan Current: America by Constructo, Solö Ruff, USS Syren by MS, Bluenose by MS Viking funeral: Harley almost a Harvey Nautical Research Guild Member - 'Taint a hobby if you gotta hurry
Canute Posted May 31, 2022 #30 Posted May 31, 2022 Your combustor section looks good. 👍 All you need now is the nozzle section. king derelict, mtaylor and Old Collingwood 3 Quote Ken Started: MS Bounty Longboat, On Hold: Heinkel USS Choctaw paper Down the road: Shipyard HMC Alert 1/96 paper, Mamoli Constitution Cross, MS USN Picket Boat #1 Scratchbuild: Echo Cross Section Member Nautical Research Guild
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