1/10 GMC PD-4501 Greyhound Scenicruiser Bus Build-3d printed

[Orange RC Works]

My winter project is slowly shaping up... the first time is saw this, told myself, im definitely building one...

https://i.ibb.co/n1CrG3j/Capture026.jpg (https://ibb.co/gWVy2vJ) https://i.ibb.co/CWjqqMm/Capture023.jpg (https://ibb.co/Yb566yP)

https://i.ibb.co/yRRV4K7/20241203-023638.jpg (https://ibb.co/QccXDht) https://i.ibb.co/Pr0jJmZ/20241203-023629.jpg (https://ibb.co/sgzRcmv)

https://i.ibb.co/qykH4Fr/20241128-171100.jpg (https://ibb.co/gjz0XFR) https://i.ibb.co/KVsq7JY/20241129-130500.jpg (https://ibb.co/h2dWHSk) https://i.ibb.co/BjjMHww/20241203-023756.jpg (https://ibb.co/tccrw33)

https://i.ibb.co/BGFykb7/20241128-170907.jpg (https://ibb.co/8btrkqR)

[Zabco]

Now that is cool. Don't see many buses for some reason. Great detail your putting into it. Were you able to find some specifications or working from photos? Will be following closely.

[Orange RC Works]

Now that is cool. Don't see many buses for some reason. Great detail your putting into it. Were you able to find some specifications or working from photos? Will be following closely.

Only pictures and a few 3-view drawings...a little bit of math, ratio and proportion. i like the challenge, trial and error once in a while... will keep you posted...

[Zabco]

Yes, thank god for the internet today. Makes research much easier. I spent months googling, binging and duckduckgoing searching for info on my Mack B model. Found an old factory data sheet that listed basic dimensions of truck and after that was mostly scaling from photos. Fortunately a lot of parts like lights and suspension components are still manufactured and used today and you can often find dimensions on manufacturer's or resellers web sites.

[Orange RC Works]

Yes, thank god for the internet today. Makes research much easier. I spent months googling, binging and duckduckgoing searching for info on my Mack B model. Found an old factory data sheet that listed basic dimensions of truck and after that was mostly scaling from photos. Fortunately a lot of parts like lights and suspension components are still manufactured and used today and you can often find dimensions on manufacturer's or resellers web sites.

That is awesome, well, for this build, i found a FB group that are big fans of this bus and some still owns a few of these either as RV or restoration projects... they have lots of pictures so yeah, so much better that we have internet now haha.... anyway, good luck on your build...

[frizzen]

Wow, those interior pieces are already looking amazing! Awesome job on the design work, definately keeping your robot busy this winter

Very cool project idea, have you decided what livery you're going to paint it?

Great to see somebody tackle a bus project, they're really rare. I can't wait to see where this project goes!

[Orange RC Works]

https://i.ibb.co/L90vR7x/20241212-013427-Copy.jpg (https://ibb.co/RQg7bw3)

https://i.ibb.co/DDN0B5Z/20241212-021449.jpg (https://ibb.co/1f3FC8k)

https://i.ibb.co/F6WMN1f/20241212-013419.jpg (https://ibb.co/31sqGb8)

[Orange RC Works]

Wow, those interior pieces are already looking amazing! Awesome job on the design work, definately keeping your robot busy this winter

Very cool project idea, have you decided what livery you're going to paint it?

Great to see somebody tackle a bus project, they're really rare. I can't wait to see where this project goes!

thanks, yup, coz it is fast, it surprises at how fast i need to buy filament to replenish my stock...lol... i was watching YT videos and this bus wandered into my feed, and that mesmerized me, i said, i think im gonna build me a 1/10 scale.... this thing is almost 4 ft long.... please recommend a nice paint scheme for this build, it is usually blue/grey/chrome scheme

[Krewmember]

The 1970's paint scheme looked pretty cool.

https://s3.wheelsage.org/format/picture/picture-gallery-full/g/gmc/gm_pd-4501_scenicruiser/gm_pd-4501_scenicruiser_17.jpg


-Shawn-

[Mikem]

Big and awesome

[Orange RC Works]

The 1970's paint scheme looked pretty cool.

https://s3.wheelsage.org/format/picture/picture-gallery-full/g/gmc/gm_pd-4501_scenicruiser/gm_pd-4501_scenicruiser_17.jpg


-Shawn-

yup, this one

[Blender]

Iconic exterior styling for sure. The detailed interior of your model is a great feature and nice to see included.

[frizzen]

Nearly four feet long? That's a beast!!! I thought a city bus i'm gathering parts for was fairly big at 28 inches long. You're going to have room to hide ALL the scale toys in that rig...

Which 1/10 axles is this going to ride on?
I like that you've gone into production enough with this, that there's just a bucket of seats sitting on the bench.

That Red, White & Blue looks killer!

[Orange RC Works]

Nearly four feet long? That's a beast!!! I thought a city bus i'm gathering parts for was fairly big at 28 inches long. You're going to have room to hide ALL the scale toys in that rig...

Which 1/10 axles is this going to ride on?
I like that you've gone into production enough with this, that there's just a bucket of seats sitting on the bench.

That Red, White & Blue looks killer!

Yeah i measured again coz i thought i was just seeing things, indeed it was 48 inches long haha... anyway, i still use the HG P-401 rear axle (x2) for this build as the front is unpowered...

i have done pretty much all the seats, 19 benches w/ 2 seats and 1 long bench at the rear... so far i have used about 5 spools of PLA filament lol... right now im building the side walls, my plan is to have the walls and roof connected except the front section so i can just lower it in place.

[Orange RC Works]

Iconic exterior styling for sure. The detailed interior of your model is a great feature and nice to see included.

it was quite hard to figure out the position of the toilet room but it is in, im still going to have to design the toilet seat and the lavatory and maybe a few cabinets inside that room... it will also have overhead racks for luggage just like the real ones lol...

[Orange RC Works]

https://i.ibb.co/j6hZLLJ/20241216-182337.jpg (https://ibb.co/SsN7KKf)

https://i.ibb.co/FbnYxR1/20241216-182433.jpg (https://ibb.co/zhN2nqg)

https://i.ibb.co/4WD2Jsm/20241216-182245.jpg (https://ibb.co/6Yp8Nvn)

https://i.ibb.co/yNmyYxD/20241216-182457.jpg (https://ibb.co/MgyVGJb)

[Zabco]

Looking good. Is there going to be anything to cover up all those screw heads?

[Orange RC Works]

Looking good. Is there going to be anything to cover up all those screw heads?

Yup, i was looking at it and it looks awful, so i will print a very thin sheet to cover that up. thanks for the heads up.

[frizzen]

That's really shaping up beautifully!

I think this is a facinating build. I wasn't around when those bus were in service, only really seen them used in movies to deliver someone to a rural place. You inspired me to learn some more about these, and thought this goes into some good details

https://www.curbsideclassic.com/curbside-classics-american/curbside-classic-gmc-pd-4501-greyhound-scenicruiser-everybodys-favorite-bus-except-for-greyhound-and-gm/

[Zabco]

Interesting frizzen. I never knew those early versions actually had two engines in them. I can just imagine what a nightmare the control linkage was.

[Orange RC Works]

That's really shaping up beautifully!

I think this is a facinating build. I wasn't around when those bus were in service, only really seen them used in movies to deliver someone to a rural place. You inspired me to learn some more about these, and thought this goes into some good details

https://www.curbsideclassic.com/curbside-classics-american/curbside-classic-gmc-pd-4501-greyhound-scenicruiser-everybodys-favorite-bus-except-for-greyhound-and-gm/

Thanks Frizzen, wow, this is a good read.

[frizzen]

I'm glad you guys found that article interesting too. I was suprised by how much bus content they have over there. Bunch of other brands too, and some weird stuff

https://www.curbsideclassic.com/buses/

[Orange RC Works]

Build update...

https://i.ibb.co/BsGChCP/20250102-223502.jpg (https://ibb.co/zfF4345) https://i.ibb.co/ySNYSyD/20250102-223622.jpg (https://ibb.co/ZmfYm83)

https://i.ibb.co/6WHT1qv/20250102-223510.jpg (https://ibb.co/P6cP9VT) https://i.ibb.co/k1Z0Y8c/20250102-223636.jpg (https://ibb.co/5FZvq8c)

[Zabco]

Very nice, looking good. Love the detail you have put in.

[Blender]

Looking great. The rear window/roof contour is my fav part.

Looks like upper and lower windshields as well as the back window will be curved in one or more directions. What's the plan to build those?

[Orange RC Works]

Very nice, looking good. Love the detail you have put in.
thanks, ill try to copy the real one as much as i can... but with only pictures i find online, i have to recreate and improvise...

[Orange RC Works]

Looking great. The rear window/roof contour is my fav part.

Looks like upper and lower windshields as well as the back window will be curved in one or more directions. What's the plan to build those?

i think i remember modeling it as quarter circle with end section curving a little, so im thinking of just clear plastics (packaging) and laminate 2 to 3 sheets so i can bend it easily.

[frizzen]

That's really sharp now that it has skin!

[Orange RC Works]

https://i.ibb.co/3RTHQwk/20250106-101058.jpg (https://ibb.co/wcd1jTY) https://i.ibb.co/b2yWjgB/20250106-121301.jpg (https://ibb.co/dL3Ws02)

https://i.ibb.co/pPZbG2g/20250106-121315.jpg (https://ibb.co/6ZbrVY2) https://i.ibb.co/6YFn3rR/20250106-100830.jpg (https://ibb.co/BLBzXcV)

[Zabco]

thanks, ill try to copy the real one as much as i can... but with only pictures i find online, i have to recreate and improvise...

I fully understand. I've been working on a model of a 1950's Mack B-61 for over two years now. Lots of photos on internet as it is a fairly popular model for restorations. But dimensions, not so much. Spend a lot of time with calipers, dividers and a calculator. There is a vintage truck show near me every summer and usually one or two B-61s will show up so I can do some checking. Don't know where you would find a real Scenicrusier to check.

[ddmckee54]

Your bus project is really starting to come together nicely, you and your printer have been busy. (Any idea how many print hours you have in it?)

With the exception of the rear window it looks like all of the curves in the glass will just be simple curves. Heat forming canopies/windshields is not that complicated, there's lots of videos on DIY vacuum forming. And you really don't need much more than a heat gun, a shop-vac, and some wood scraps. The wood's to make the vacuum box.

You've already got the 3D model, it won't take too much additional work to model the plugs that you'll need to make the curved glass parts. Of course you'll need to sand/fill the layer lines on the plugs - but I'm sure you are familiar with that process by now.

SuperfastMatt recently did a video about how not to make a windshield for his Bonneville streamliner, in fact he showed how not to do it several times. But, he also needs something a little more optically clear than you need for an RC bus.

Don

[Orange RC Works]

First test run... so far so good....id like to install actuator to open and close the bay doors....lights and sound is next.

https://youtu.be/aztM4_qFpk8

[Orange RC Works]

Latest build update....

https://i.ibb.co/3vV6BD0/20250128-004643.jpg (https://ibb.co/pQNVJt3)

https://i.ibb.co/vvnxB1Q/20250128-004952.jpg (https://ibb.co/WpJW3nP)

https://i.ibb.co/f2stpgb/20250128-004654.jpg (https://ibb.co/6mkbPM2)

[tamiya fan]

You did an amazing job with this! Can wait to see it all done. Always wanted a bus but so much work involved.

Ever think of a 'Gyro" controling 4 servo's (4 corners) I saw this done on a bus and it will give you that bus dip and sway when stopping/driving Etc... Adds alot of realism. Not sure if it would work with your application?

Very Nice work. Can't wait to see it when done. Alot of work!!

[frizzen]

That's looking great! I really love how well all the curved parts came out

Tamiya makes a great point, something like the 'Superscale 2020' suspension controller would look great adding more dynamic motion to driving that beast.