Author Topic: Wurlitzer 200A - 3D model  (Read 10613 times)

Offline cinnanon

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Wurlitzer 200A - 3D model
« on: November 23, 2014, 11:14:23 PM »
I am attempting (in my spare time) to model the 200A piece by piece, mainly for fun and to see if I can do it. I will have models available for download and update this thread as I go. Modeled in SolidWorks. Maybe someone can print the parts on a 3D printer one day and have a totally plastic wurly! Each piece will be measured down to the thousandths of an inch, so should be pretty accurate. I made these two tonight.
« Last Edit: November 23, 2014, 11:25:00 PM by cinnamonrolli »

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #1 on: November 24, 2014, 10:31:37 PM »
Damper arm

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #2 on: November 25, 2014, 10:55:46 PM »
building the base. legs aren't totally done yet.

Offline pianotuner steveo

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Re: Wurlitzer 200A - 3D model
« Reply #3 on: November 26, 2014, 05:52:08 AM »
This is neat looking, but I guess I don't really understand what you are doing.

Is ths something you are making with a 3D printer?
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #4 on: November 26, 2014, 07:13:16 AM »
The pictures are renderings of the solid models I'm drawing in SolidWorks. The end result will be a scale 3d virtual model of the 200A complete with moving parts. I'll do some simulations of the action and also find what it takes to break the keyboard in half (for some reason I am curious ).  Useless stuff unless someone wants to build the whole thing from scratch, now they can. And mainly for fun.  The lid will fold back, keys will move and engage the action.  Sustain pedal will lift the dampers. I can model an amp and see if it will fit before ever designing it.  I'm going to use this to help me design a sustain pedal for my 112 too.
« Last Edit: November 26, 2014, 08:20:52 AM by cinnamonrolli »

Offline mvanmanen

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Re: Wurlitzer 200A - 3D model
« Reply #5 on: November 26, 2014, 10:12:46 AM »
This is a really neat project.
Thank you for sharing your progress.
Wurlitzer 200a
Wurlitzer 145
Fender Rhodes, now including a Celeste (1966, 1971, 1975)
Hohner Clavinet Pianet Duo
Hohner Clavinet D6s
Hohner Pianet T
Hohner Pianet N
Hammond B3

Offline Dmacken1

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Re: Wurlitzer 200A - 3D model
« Reply #6 on: November 26, 2014, 02:51:17 PM »
This is pretty awesome! Keep us posted on the completion of the design. I know that Cornell University has a 3D printer. I have a few connections over there and would love to get this piece built and see how it sounds!

Offline pianotuner steveo

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Re: Wurlitzer 200A - 3D model
« Reply #7 on: November 26, 2014, 03:20:48 PM »
You can't build hammer and damper felt or reeds with a 3D printer.... ;)
« Last Edit: September 11, 2015, 08:08:37 AM by pianotuner steveo »
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #8 on: November 26, 2014, 04:54:00 PM »
Haha yea plastic reeds would break pretty easily i'm sure. Let alone they aren't even conductive!
I can tell you how much force is exerted on the reeds though. When I design the reeds I will model each one individually and see how much force it takes to break them. I just need to know the type of steel that was used on the reeds and I can find the properties on it.

I will keep this up to date.  I plan on getting a good bit done this weekend.

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #9 on: December 01, 2014, 08:37:42 PM »
A little more.

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #10 on: December 02, 2014, 10:22:37 PM »
keypins

Offline 8675309

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Re: Wurlitzer 200A - 3D model
« Reply #11 on: December 05, 2014, 03:15:34 PM »
A strong recommendation would be to NOT post any of your solid files! Someone could easily go into business with what your doing here, its happened before on other forums where "DIY" recipes were posted and people with no morals just copy/paste and put the stuff into production leaving you stuck high and dry while they cash in. Good work though I tinker with solidworks from time to time its a difficult program to operate!

Nice work :)

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #12 on: December 06, 2014, 12:41:43 AM »
I thought of that too. You are right.

Offline pianotuner steveo

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Re: Wurlitzer 200A - 3D model
« Reply #13 on: December 06, 2014, 05:35:25 AM »
I love the hammer pictures!

Cool!
« Last Edit: March 01, 2015, 06:43:43 PM by pianotuner steveo »
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #14 on: March 01, 2015, 02:42:00 PM »
knob

Offline David Aubke

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Re: Wurlitzer 200A - 3D model
« Reply #15 on: March 01, 2015, 04:14:45 PM »
I've modeled several parts from Rhodes pianos in SketchUp. I'd love to complete an entire piano but I don't think I can accomplish that in one lifetime. My motivation is partly about documentation but also to provide references for folks trying to repair or replace parts. Heck, if someone wanted to download my .skp files and start production, they're welcome to them. My only fear would be that they might later turn around and claim copyright over my work. You guys are going to be my prior-art witnesses should that day arrive.



SolidWorks does not appear to be software targeted to consumers. Is this something you do professionally? Can you give me a ballpark of how long it took you to create some of those models? I doubt it's something within my price range where SketchUp fits comfortably.
Dave Aubke
Shadetree Keys

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #16 on: March 01, 2015, 10:03:33 PM »
Awesome sketch up! I've always wanted to try it out. Is it easy?

I use solidworks almost daily for work. It is a history based software, so you can go back and change anything and it will update all the following. It is mainly sketch driven extrusions and sweeps.  I draw each part individually piece by piece, make small assemblies of the dampers and hammers and such, then one finally assembly of the entire piano. I keep creating new parts and inserting them into the assembly. Can sketchup export parasolids (.x_t), step files (.stp), or .igs files?

 If you define the material for each component, you'll get accurate properties like mass. You can create BOMs too. Also a great simulation program. I've been trying to get the action working correctly when I press a key, but we don't have the full seat of simulation so i have to make do. 

Oh an id say the knob took about 20 minutes or so to draw. I measure and sketch at the same time.

I think it would be cool to 3D print these knobs with glow-in-the-dark plastic.

PSS. Dassault systems, the owners of solidworks, released free CAD software called Draftsight. It is identical to autocad and totally free. Great 2D drafting software.
« Last Edit: March 01, 2015, 10:14:52 PM by cinnamonrolli »

Offline Student Rhodes

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Re: Wurlitzer 200A - 3D model
« Reply #17 on: March 02, 2015, 12:24:13 AM »



I like that you modeled it on the late '71 to early '73 shell with the extra angle in the side panels. 

For my money, the pianos from this era, with the earlier Torringtons, have the most desirable definitive Rhodes sound.  They still have some of the the punch found in the Raymacs, but have a little more air to them for the pretty stuff.   Yet, they don't seem as "ting-a-ling" as the later Rhodes keys, which seemed to progressively sound thinner with each passing year. 

Offline David Aubke

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Re: Wurlitzer 200A - 3D model
« Reply #18 on: March 02, 2015, 07:33:59 AM »
Awesome sketch up! I've always wanted to try it out. Is it easy?
Exceedingly. At least it's easy to learn to use but...
Oh an id say the knob took about 20 minutes or so to draw. I measure and sketch at the same time.
That knob would have taken me many hours to draw. Creating those curved surfaces and grooves is a very time-consuming process for me. There are built-in tools and also user-created extensions that provide shortcuts but they always end up causing issues that require sloppy fixes to clean up. I pretty much draw each line by hand so that I can maintain control. The only shortcuts I use are copy and paste.

PSS. Dassault systems, the owners of solidworks, released free CAD software called Draftsight. It is identical to autocad and totally free. Great 2D drafting software.
My dad used to design retail store display fixtures and I have some experience with AutoCAD.

I like that you modeled it on the late '71 to early '73 shell with the extra angle in the side panels.
Many of the individual pieces are drawn from the same 1973 but several others are from different years.
Dave Aubke
Shadetree Keys

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #19 on: March 02, 2015, 12:10:27 PM »
I watched a few videos of sketchup and it looks great for quick sketching. Is it editable after you make a change, as in "un-doable?"

Here are the steps I took to create the knob. See picture below.
First I made a cyclinder by extruding a circle. Then a revolved extrusion of the knob head sketch. After that I drew the"V" for the ribbing cutouts, swept that profile along a path (blue line) to cutout the groove. And finally, did a circular pattern to copy that groove 160 times around the part, spaced evenly.

Offline David Aubke

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Re: Wurlitzer 200A - 3D model
« Reply #20 on: March 02, 2015, 12:20:17 PM »
First I made a cyclinder by extruding a circle.
Same sorta thing in SketchUp.

Then a revolved extrusion of the knob head sketch.
Don't know what that means (but I guess I can see from the image).

After that I drew the"V" for the ribbing cutouts, swept that profile along a path (blue line) to cutout the groove.
Supposed to be able to do that in SketchUp - they call it the "Follow Me" tool - but I can never get it to work for me.

And finally, did a circular pattern to copy that groove 160 times around the part, spaced evenly.
This sounds like trouble to me. I'd never be able to get that to work out exactly right. I make screw threads by building a single lap around the shaft then copying that piece until I have the length I want but beyond that, I got so tired of trying to finagle the special shape tools that I would just rather sit there and draw each line myself.
« Last Edit: March 02, 2015, 12:24:08 PM by David Aubke »
Dave Aubke
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Offline David Aubke

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Re: Wurlitzer 200A - 3D model
« Reply #21 on: March 02, 2015, 12:28:45 PM »
Is it editable after you make a change, as in "un-doable?"
Well, SketchUp does have the standard Undo command but it does not maintain a history outside of volatile memory - i.e., you can't open an old file and start stepping back through changes.

I use solidworks almost daily for work. It is a history based software, so you can go back and change anything and it will update all the following

I'm not certain I understand what this means. In SketchUp, I create "Components" for things like the hammers for which many duplicates are needed. If I change one instance of the Component, that change will be reflected in all other instances.
Dave Aubke
Shadetree Keys

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #22 on: August 29, 2015, 10:54:54 PM »
pedal - kinda
« Last Edit: August 29, 2015, 10:56:54 PM by cinnamonrolli »

Offline jbennett

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Re: Wurlitzer 200A - 3D model
« Reply #23 on: August 30, 2015, 08:21:42 AM »
These are looking really great.

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #24 on: September 10, 2015, 08:30:51 PM »
The last of the pedal

Offline robert

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Re: Wurlitzer 200A - 3D model
« Reply #25 on: September 15, 2015, 12:46:11 PM »
great project! keep up the good work.
wurlitzer 200a
clavinet c
wurlitzer 206a
rhodes mk 1
hammond m3
korg arp odyssey


MIJ fender telecaster
MIM fender P bass (flats)
some drums, etc.

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #26 on: September 16, 2015, 12:01:11 PM »
look at that piece of action!

Offline robert

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Re: Wurlitzer 200A - 3D model
« Reply #27 on: September 20, 2015, 04:23:18 PM »
wow could you use this model for an animation? I bet it would be very cool to demonstrate the action as part of a video explaining all about how the wurlitzer works. very detailed work you've done!
wurlitzer 200a
clavinet c
wurlitzer 206a
rhodes mk 1
hammond m3
korg arp odyssey


MIJ fender telecaster
MIM fender P bass (flats)
some drums, etc.

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #28 on: September 20, 2015, 08:36:50 PM »
I can use this model for animation, but sadly we don't have the full seat of Solidworks simulation; we just have simple static loads. So I can tell you how much force would break the wurlitzer in half, but I can't tell you how hard you need to play a key to break a reed (yet!).

Offline cinnanon

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Re: Wurlitzer 200A - 3D model
« Reply #29 on: November 06, 2015, 11:45:40 AM »
action coming together