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Skipper_52
(@skipper_52-2)
Trusted Member
Marble madness

01

Started to design and build a steel ball (marble machine). Been quite and engineering challenge for something that seems so simple. The major frame will be baltic birch plywood but I'm printing as many components as I can The 'engine block' with dual cams lifts 24 lifters that will lift the stair sections. That part is printed and works. As soon as I mount the motor I'll send a video.

Napsal : 25/03/2022 7:29 pm
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE:

Runs pretty smooth. 

 

 

Napsal : 25/03/2022 9:57 pm
Asus1357 a bobstro se líbí
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Got all the 24 stairs (pistons) done. A lot of sanding. Filing the pieces 1st drastically cuts down your time. Copper rods are actually 1/8" steel tig wire. They come copper coated. Now printing the stringers to hold it all together.

 

Napsal : 30/03/2022 7:20 pm
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE:

Staircase assembled for a test run. It works...(so far).

Napsal : 03/04/2022 10:14 pm
bobstro se líbí
richnormand
(@richnormand)
Estimable Member
RE: Marble madness

Very nice!

Hope you will keep posting your progress and show the final machine.

Cheers

 

REPAIR, RENEW, REUSE, RECYCLE, REBUILD, REDUCE, RECOVER, REPURPOSE, RESTORE

Napsal : 04/04/2022 12:06 am
Skipper_52 se líbí
richnormand
(@richnormand)
Estimable Member
RE: Marble madness

Speaking of marble machines you might like this fellow for inspiration:

There are lots of 3D printing possibilities there.

REPAIR, RENEW, REUSE, RECYCLE, REBUILD, REDUCE, RECOVER, REPURPOSE, RESTORE

Napsal : 05/04/2022 2:16 am
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

I saw that on youtube after I started mine. He is one talented individual and is an accomplished musician on many instruments. He is either filthy rich or has had a ton of donations. He has top of the line machinery along with a crew of talented engineers.

Napsal : 05/04/2022 3:32 am
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Intermediate gear and lifting gears mesh great. Creating gears like this and modeling in Autocad is just incredible. 40 years ago this precision would only have been a dream.

 

Napsal : 05/04/2022 4:57 am
bobstro se líbí
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

 

Hopper  01 Assembly. Had an error on the 1st pickup wheel. I forgot to angle the marble holes 5 degrees and have to reprint. 8 hrs. wasted.

 

Napsal : 05/04/2022 6:38 pm
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Still in testing stage for awhile but hoppers work fine.

 

Napsal : 11/04/2022 4:50 pm
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Got the 1st spiral installed for testing. Works great.

Napsal : 13/04/2022 12:06 am
Lemsko se líbí
richnormand
(@richnormand)
Estimable Member
RE: Marble madness

Can't wait to see the finished project!

Or if it is like some of my projects it will be an example of "mission creep" and never be truly finished......  and a joy forever😀 

REPAIR, RENEW, REUSE, RECYCLE, REBUILD, REDUCE, RECOVER, REPURPOSE, RESTORE

Napsal : 13/04/2022 1:25 am
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Triple helix is tested.

Napsal : 17/04/2022 3:06 am
Lemsko se líbí
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Marble madness

what an inventive spirit - great work 👍 👍 👍 

wbr,

Karl

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Napsal : 17/04/2022 5:13 pm
Skipper_52 se líbí
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Might be a few days until the next post. Been working on a 24" auger lift and it's taking a lot of time printing.

Napsal : 18/04/2022 11:21 pm
richnormand
(@richnormand)
Estimable Member
RE:

Nice progress.

I note that you are building on a wood panel.

Have you considered building it on a plexiglas panel so both sides are visible simultaneously and give you options for the final build for creative lighting ?

Cheers 😊 

REPAIR, RENEW, REUSE, RECYCLE, REBUILD, REDUCE, RECOVER, REPURPOSE, RESTORE

Napsal : 19/04/2022 8:24 pm
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Clever idea, the plexiglas. The wood (baltic plywood) is now just a mockup board. There will be a lot of material removed when the prototype is finished and I can cut the finished frame.

 

Napsal : 20/04/2022 2:45 am
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Auger lift is working. Needs some very slight tweaking which might be due to a small bow in the shaft. I used a a straightedge to assemble all of the 90mm sections but apparently there is a very small flaw in it, but it does lift 24 metal 1/2" balls.

Napsal : 20/04/2022 3:18 am
Lemsko se líbí
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Came up with an idea for the teeter totter tracks that it will have. I saw a marble toy from Grafix and copied the idea from them. The printed connectors are designed to hold the 1/8" tig wire that I have.

Napsal : 20/04/2022 3:23 am
Lemsko se líbí
Skipper_52
(@skipper_52-2)
Trusted Member
Topic starter answered:
RE: Marble madness

Heat head to a crap last night and I spent all night rebuilding it. Seems to be working fine now. Will have some more pics soon.

 

Napsal : 25/04/2022 11:09 am
Lemsko se líbí
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