1953 Ford 3 speed standard transmission (1/3 scale)

Trying to fill up the winter with projects so I took my CAD drawings for the 1953 Ford standard transmission and made Solidworks models for all the parts. My CAD drawings are meant for machining from metal so changes had to be made to make them printer friendly. Things like shaft to hole dimensions, ease and assembly of printed parts and the big one for me making the parts so I don't need as much support material.
Anyway, I'm happy the way they came out. You can even shift gears albeit carefully.
The trans is a 1/3 scale model of the real thing. About 10 inches end to end. I started with PTEG, not my favorite but initially everything was going fine then my Ender 3 Neo decided it didn't like the PTEG so I switched to tough PLA.
The problem with the PTEG was that flat surfaces on the build plate would curl up at one corner. I tried adjusting temps and feed rates but no luck. The build plate was level and clean with just a hint of hair spray. The PLA has to be knocked of when cool so I know it's not that.

Thats wonderful!  Are you thinking of making a version in metal too?

I have had the same problem of the wide/flat prints curling up from the build plate, but just in PLA so opposite of what you are seeing, cured it by upping the bed temperature from 60c to 70c from the standard profile in the slicer for PLA prints. I figured it might be a temperature variance issue across the bed since it always seemed to be on the same side. SO many parameters in the printers, but they do amazing things.

Actually I built the metal one a couple of years ago.  I'll. Post some pictures tomorrow.

Truly spectacular! 

Thanks so much Chris! Coming from you is much appreciated.  I'm glad that there are younger guys like you that keep the craft going.  I'll be 80 in April so most of my generation are closing out their careers, one way or another.

Beautiful craftsmanship as always George.
Did you ever get it hooked up to the engine?

Sid

Thanks Sid,
Yes I did but I don't run it that way at shows. I have the trans sitting out on the table for people to look at and touch.

That is very cool, George! 

Thanks for sharing the video.
Kim

As usual, I'm really enjoying seeing you create part George - they are truly Gems 

Like Chris I have absolutely no problems printing in PTEG especially after Prusa updated the 'Profile' (settings) for it about a year or two ago. I'm sure they raised the Temperature - especially the Bed => PTEG is almost completely impossible to remove from the Bed afterwards and much higher quality prints too 

PLA do how ever give me grief from time to time - lifting etc .... 

Per         

Quote from: Admiral_dkAs usual, I'm really enjoying seeing you create part George - they are truly Gems 

Like Chris I have absolutely no problems printing in PTEG especially after Prusa updated the 'Profile' (settings) for it about a year or two ago. I'm sure they raised the Temperature - especially the Bed => PTEG is almost completely impossible to remove from the Bed afterwards and much higher quality prints too 

PLA do how ever give me grief from time to time - lifting etc .... 

Per         

For petg, prusa recommends  using thier textured build plate rather than the standard smooth one. On the textured one, petg releases with just a flex of the plate. Pla works with either plate.

I think it's a thermal expansion contraction issue. I run the extruder at 228 and the bed at 62. The upper parts of the print are good and the initial layers lay down good it's just as it gets to 2-3 mm thick one corner starts to lift off the build plate. Some parts with a smaller footprint come out fine.

Wonderful work George!
I am fascinated by manual transmissions.
Rebuilding and repairing them was one of my specialties in my auto mechanic days.
Scott

Hi Scott,
I'll probably model a motorcycle sequential next. Really neat selecting mechanisms in them.

Looking forward to that!
You are correct - very interesting gear selection with the helical grooves and ratchet mechanism.
Scott