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Motor adjustment via shapeways [message #38067] Sun, 06 November 2011 16:23 UTC Go to next message
avatar Mortimer  is currently offline Mortimer
Messages: 4
Registered: February 2010
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Junior Member
Hi Shapeways & Forum,

My Model arrived!!!
But I have to start earlier:

http://martin-boettger.com/Bilder/3D/mo01.jpg
That's my tiny motorcycle. I've got a problem with the adjustment of the motor idling speed, especially in this cold time of the year. Sometimes the motor dies shortly after the start, because the cold motor wants more fuel and rotations. And when the motor is warm, its rotation speed is too high, it doesn't sound good and it gets too hot while standing.

http://martin-boettger.com/Bilder/3D/mo02.jpg
There's a screw to adjust the idling, but I can't even take a picture of it because it's so hidden. So I want a "remote control" for the speed idling. But how to do this?

http://martin-boettger.com/Bilder/3D/mo02b.jpg
Every time I drive, I see this "control center", which is printed by shapeways (I'm very happy with it). So I've started to create a device for the idling problem that could be printed by shapeways again.

http://martin-boettger.com/Bilder/3D/mo03.jpg
First of all I disassembled the carburetor from the bike and took a look at the screw that screws me.

http://martin-boettger.com/Bilder/3D/mo04.jpg
After that I've drawn the carburetor in CAD.

http://martin-boettger.com/Bilder/3D/mo05.jpg
Then I've created a worm gear.
But where's the remote control?

http://martin-boettger.com/Bilder/3D/mo06.jpg
I've found a flexible shaft at ebay, it's originally a speedometer shaft, it costs about 2 €. ( www.ebay.de/itm/Hercules-Tachowelle-VDO-Instrumente-500mm-Sc hwarz-/270842453140)

http://martin-boettger.com/Bilder/3D/mo08.jpg
That's the actual design of the device.

http://martin-boettger.com/Bilder/3D/mo07.jpg
Here's a section view.

http://martin-boettger.com/Bilder/3D/mo09.jpg
The easiest step was the production (for me Wink), I've uploaded the STL-File and ordered it in polished WSF (if you're interested: http://shpws.me/3rJf)

to be continued
Re: Motor adjustment via shapeways [message #38068 is a reply to message #38067 ] Sun, 06 November 2011 16:25 UTC Go to previous messageGo to next message
avatar Mortimer  is currently offline Mortimer
Messages: 4
Registered: February 2010
Go to my shop
Junior Member
http://martin-boettger.com/Bilder/3D/mo10.jpg
I love to open the shapeways packages, I get always excited like a little child.

http://martin-boettger.com/Bilder/3D/mo11.jpg
I'm very happy with the result.

http://martin-boettger.com/Bilder/3D/mo12.jpg
After cleaning the parts with a Dremel I've painted them (I love to do unnecessary things).

http://martin-boettger.com/Bilder/3D/mo13.jpg
The picture above shows the assembly. I've used M2 screws.

http://martin-boettger.com/Bilder/3D/mo14.jpg
I was surprised by the smooth movability of the gear.

http://martin-boettger.com/Bilder/3D/mo15.jpg
Now I have to cut the flexible shaft...

http://martin-boettger.com/Bilder/3D/mo16.jpg
...and fix it with the driven worm.

http://martin-boettger.com/Bilder/3D/mo17.jpg

http://martin-boettger.com/Bilder/3D/mo18.jpg
The worm gear will drive a simple hexagonal bit.

http://martin-boettger.com/Bilder/3D/mo19.jpg
That's the other side of the shaft with the rotary knob and its holder.
Re: Motor adjustment via shapeways [message #38069 is a reply to message #38068 ] Sun, 06 November 2011 16:26 UTC Go to previous messageGo to next message
avatar Mortimer  is currently offline Mortimer
Messages: 4
Registered: February 2010
Go to my shop
Junior Member
http://martin-boettger.com/Bilder/3D/mo20.jpg
Then it was time to connect the device with the carburetor.

http://martin-boettger.com/Bilder/3D/mo21.jpg

http://martin-boettger.com/Bilder/3D/mo22.jpg
The adjusting knob is installed near the handle bar of the bike.

http://martin-boettger.com/Bilder/3D/mo23.jpg
(someday I will clean the bike)

http://martin-boettger.com/Bilder/3D/mo24.jpg
Now I can easily adjust the motor idling.

http://martin-boettger.com/Bilder/3D/mo25.jpg

Thank you Shapeways!

Regards, Martin
(I'm sorry, my English isn't the best)
Re: Motor adjustment via shapeways [message #38070 is a reply to message #38067 ] Sun, 06 November 2011 17:27 UTC Go to previous messageGo to next message
avatar Kasss_Gnarl  is currently offline Kasss_Gnarl
Messages: 29
Registered: July 2011
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Junior Member
That's so impressive, I love it!
Re: Motor adjustment via shapeways [message #38074 is a reply to message #38067 ] Sun, 06 November 2011 19:02 UTC Go to previous messageGo to next message
avatar chris89  is currently offline chris89
Messages: 140
Registered: January 2009
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Senior Member
Very impressive Smile
Re: Motor adjustment via shapeways [message #38078 is a reply to message #38069 ] Sun, 06 November 2011 20:12 UTC Go to previous messageGo to next message
avatar pfeiffer stylez  is currently offline pfeiffer stylez
Messages: 296
Registered: August 2011
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Senior Member
Bei Shapeways gibt's ja inzwischen so einiges...
Naja, überwiegend wohl Schmuck und irgendwelchen mehr oder minder dekorativen Nippes...
Inzwischen ist das hier auch ein beliebter Spielplatz für Modellbauer allerlei Maßstäbe...

Wahrscheinlich spricht da der Maschinenbauer in mir,
aber DAS ist mit Abstand der beste (u.a. weil der sinvollste^^) Einsatz dieser 3D-Druck Technologie der mir hier bisher untergekommen ist.

Ich hoffe du bist auch noch in irgendwelchen Krad-Foren oder sowas aktiv, und publizierst (auch) da dein Projekt...
Jedenfalls werde ich, vorausgesetzt das da von deiner Seite aus kein Ausdruck den Missfallens in meinem Postfach landet, den Link zu diesem Thread nächste Woche an mindestens zwei Technikerschulen rundreichen.



PS
Ich schreib' das auf deutsch weil mir dafür auf englisch grad echt die Worte fehlen. ^^
Re: Motor adjustment via shapeways [message #38080 is a reply to message #38078 ] Sun, 06 November 2011 21:34 UTC Go to previous messageGo to next message
avatar 2SeeKU  is currently offline 2SeeKU
Messages: 8
Registered: October 2011
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Junior Member
Wow!

Very impressive work. It's applications like this that get me truly excited with the future of 3D printing.

How does it hold up with the heat from the engine?
Re: Motor adjustment via shapeways [message #38085 is a reply to message #38067 ] Mon, 07 November 2011 01:03 UTC Go to previous messageGo to next message
avatar SheilaMunro  is currently offline SheilaMunro
Messages: 71
Registered: August 2011
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Member
This is so cool. Great work!
Re: Motor adjustment via shapeways [message #38099 is a reply to message #38069 ] Mon, 07 November 2011 09:27 UTC Go to previous messageGo to next message
avatar stop4stuff  is currently offline stop4stuff
Messages: 3111
Registered: June 2010
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Shapie Expert
Ingenious solution to what should be a non-existant problem. Cool

In your second image, you clearly show the choke, the choke is for increasing the fuel to air ratio and should also be connected to the throttle linkage on the carb to increase the revs - the choke is used for cold starting. Rolling Eyes

index.php?t=getfile&id=11844&private=0


  • Attachment: mo02-1.jpg
    (Size: 48.20KB, Downloaded 390 time(s))

Re: Motor adjustment via shapeways [message #38100 is a reply to message #38067 ] Mon, 07 November 2011 09:45 UTC Go to previous messageGo to next message
avatar AD-Edge  is currently offline AD-Edge
Messages: 62
Registered: June 2008
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Member
Impressive to say the least.

I love solutions to problems like this which are so complex, yet work perfectly Smile



Re: Motor adjustment via shapeways [message #38116 is a reply to message #38067 ] Mon, 07 November 2011 16:20 UTC Go to previous messageGo to next message
avatar Mortimer  is currently offline Mortimer
Messages: 4
Registered: February 2010
Go to my shop
Junior Member
Hello everyone, thank you very much for your kind words.

Hi pfeiffer stylez, thank you, very nice comment (how did you noticed I'm from Germany Wink). Of cause you can show this to others, I would be happy.

Hi 2SeeKU, you've asked about the heat: The motor itself produces oil temperatures about 100° to 110° C, but the carburetor gets not so hot, maybe 50 °C. I'f it's very cold, I get more problems to avoid a freezing of this part.

Hi stop4stuff, you're right, that's the choke. I have to pull it to get the engine started, but it doesn't solve my idling speed problem (the idling motor speed with enabled choke is much too high).

Martin
Re: Motor adjustment via shapeways [message #38118 is a reply to message #38069 ] Mon, 07 November 2011 17:54 UTC Go to previous message
avatar lensman  is currently offline lensman
Messages: 1575
Registered: December 2009
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Shapie Expert
Mortimer wrote on Sun, 06 November 2011 16:26

[After cleaning the parts with a Dremel I've painted them (I love to do unnecessary things).



Yep, that would seem to describe you!. Excellent job on finding a solution to your problem.

Glenn


Glenn ------ My Website Third Dimension Jewellery

 
   
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