Repository for 3D Part Models, Drawings & Schematics

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
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HAL9000v2.0   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by HAL9000v2.0 » Nov 25 2009 3:46am

I am shure that I posted x5 somewhere over here... I can't find it...
Will do that again...



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HAL9000v2.0   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by HAL9000v2.0 » Nov 25 2009 3:50am

Look at the post number :)

markobetti   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by markobetti » Nov 25 2009 7:17am

i will open it later today , but is the stator includer or just the outer shell?

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by markobetti » Nov 25 2009 7:19am

you mean 636 ? or...

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HAL9000v2.0   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by HAL9000v2.0 » Nov 25 2009 7:42am

Stator is not included.

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by damcard » Dec 06 2009 6:17pm

dequinox wrote:Does anyone here think they could use a few Solidworks drawings? I used it to design a freewheel adapter for a 5/8" jackshaft. I would be glad to post the pictures for that and another adapter I designed for fitting an 80T #25 sprocket I found on Monsterscooterparts.com onto the same jackshaft. Let me know and I will see about posting some .pdf of the prints.
I am starting to use Solidworks and would love the freewheel adapter and any other part you might want to post. Once I get to a point that my parts are of decent quality, I will contribute too.

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dozentrio   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by dozentrio » Jun 09 2010 3:28pm

Rim.rar
(1.14 MiB) Downloaded 222 times
Model of a 26'' mtn bike wheel (no tire) with disc brake mount. It's accurate to about +- 1mm, but some of the fine detail on where the spokes attach to the hub, for example, isn't perfect. Also the freewheel where cassette mounts isn't exact. The diameter is right, but the splines on it aren't measured out properly. That kind of thing.

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Thud   100 MW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Thud » Sep 06 2010 5:10pm

At the request of a few members, I have detailed up some sketches of my little 2-speed.
have at folks

I have .dwg & could .dxf it on request (but those dont upload on the board)
Enjoy:
LIGHTWEIGHT 2-SPEED.pdf
2-SPEED TRANSMISION. H=1-1 L=1.81-1
(270.49 KiB) Downloaded 1213 times
the BOM in 99% complete. I dont have the .5" main shaft noted or the primary reduction sprockets....to each their own.
Last edited by Thud on Feb 23 2012 7:16am, edited 3 times in total.
get some......

All information & advice provided by Thud are "Open Source" & free for personal use & distribution under the following agreement linked below.
http://creativecommons.org/licenses/by-nc-nd/3.0/

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Sep 07 2010 1:11am

Thud wrote: I have .dwg & could .dxf it on request (but those dont upload on the board)
They do if you zip them :wink:

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by perbear » Sep 22 2010 4:33pm

I have made a complete 3D model of minimotor geared hubmotor (front) in Solid Edge, complete with internal parts. Enjoy :-)
Minimotor_nohassel_ver2.zip
Complete assembly with 28 different parts, 128 in total. The winding is in separate file because of space restrictions in my NOHASSEL google group.
(9.71 MiB) Downloaded 259 times
stator winding.zip
Windings. To get full detail, supress the two last extrudes.
(1.96 MiB) Downloaded 189 times

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Sep 22 2010 4:43pm

Thanks Per!

Any chance of a STEP version? :)

[Edit] See here: http://grabcad.com/library/golden-motor ... -minimotor

Image

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bandaro   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by bandaro » Nov 01 2010 1:52am

so, I am well on my way and almost finished my first build, just waiting for a part, but i need a gear made, so i was wondering if any of you guys could make up a file of the gear, needs to fit the standard bike chain, 11 teeth and a hole of 10mm in the centre.

im lousy on cad, so it would be great if someone knows the sizes i need and can draw up a gear, and post up the cad file and a dxf image, as i dunno what format i will need the gear in for the cutting.

thanks

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by boostjuice » Nov 01 2010 7:07am

bandaro wrote:the gear, needs to fit the standard bike chain, 11 teeth and a hole of 10mm in the centre.
Greetings fellow Canberrite!
If its for this then might i suggest this and this
I assume you are planning to use this sprocket for your 3rd reduction stage driving sprocket? if this is your plan then you will want it to be a freewheel so your not turning over your motor/reduction stages when your pedalling without motor assist.

(If you do decide to place an order from motored bikes, let me know as i'd also like to purchase one of these freewheels as an experiment and wouldn't mind piggybacking onto your order :wink: )

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bandaro   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by bandaro » Nov 01 2010 6:42pm

canbabarian you mean :P

but yes, your right, its for the 3rd stage reduction, similar to the one you linked, but more moulded around my bikes frame. on the 2nd pulley i have a freewheel already, i found that was the simplest way to mount the gear, so only the axle/chain will spin when pedaling, the belts will be stationary already.

do you know the dimensions of that freewheels internal diameter? the axle i need to mount it to is (from memory) 18mm diameter with an m10 down the centre, if that freewheel will fit on the axle then it may be just as easy to get that. i do have access to a mill and stuff so i can key the shaft if needed or something.

depends how brutal shipping is...

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bandaro   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by bandaro » Nov 05 2010 2:16am

so, anyone have any image format of an 11 tooth gear to fit a bike chain? or am i being naive in thinking all bike chains are the same? even if i could print one off and use the trusty old H-EC mill (hand-eye coordination) then it would be better as i dont even know what exact size the gear will need to be.

any reply to the email neil?

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boostjuice   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by boostjuice » Nov 05 2010 5:04am

bandaro wrote:so, anyone have any image format of an 11 tooth gear to fit a bike chain? or am i being naive in thinking all bike chains are the same? even if i could print one off and use the trusty old H-EC mill (hand-eye coordination) then it would be better as i dont even know what exact size the gear will need to be.

any reply to the email neil?

Haha, No reply yet, and probably never. Lazy twats. How ironic though, i got an automated email from them saying "We've noticed you have had items in your shopping cart for quite some time now. Is there a problem? if so, please contact us and we would be happy to help out or answer any questions". So it seems reaching for the verniers or ruler is too hard for them, but if there is a problem with debiting your credit card they're on your case in no time :roll:

Maybe another approach for you would be to just buy a screw on 11T sprocket and adapt it to a threaded bore reducer. Way cheaper and easier than getting the whole thing made from scratch.

One of these "Schwinn sprockets" is what i mean, (if you can find who sells them - i could only find the picture)
Image

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Nov 05 2010 5:46am

You could also buy a #40 sprocket and reduce the width on the lathe/mill.

You want something like this?
Attachments
11t-sprocket.jpg
11t-sprocket.jpg (35.02 KiB) Viewed 7736 times

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bandaro   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by bandaro » Nov 05 2010 6:55am

yeah, a lot of companies are like that, just seem to get it that if the dimensions are right they have the sale, and we wouldnt have bought if we think the dimensions are wrong anyway...

But yes miles, that is exactly what i need. if its got the teeth mould, then i can edit out/in/modify the gear to better fit the shaft no problems, its mainly the tooth size and shape that i cant find the specs for. And please excuse the ignorance, but what is a #40 sprocket and would i be able to buy it at my lbs?

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Nov 05 2010 7:03am

#40 chain is the same pitch and roller diameter as bicycle chain but the width and therefore the sprocket thickness is greater. See here for dimensions: http://www.gizmology.net/sprockets. #40 sprockets are available down to 8t with boss and pilot bore.

#40 is the American standard. 08B is the ISO standard.

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Nov 05 2010 7:36am

11t sprocket drawing. Scale 1:1
Attachments
11t sprocket drawing.pdf
(19.17 KiB) Downloaded 256 times

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by boostjuice » Nov 05 2010 5:59pm

A shaved width #40 sprocket was my first thought too. The problem is, Bandaro specified a 10mm bore, but the smallest #40 11T off-the-shelf sprockets I could find all had pre-drilled minimum bore diameters of 1/2". I personally don't trust thin section reducing bushings acting as an adaptor in this case, because the set screw/keyway in the sprocket has no torque transferring material directly adjacent to the shaft it's torque coupled to. So then I thought a larger off the shelf bicycle sprocket (no narrowing required) with a 10mm ID freewheel adaptor (if they exist-or if Bandaro got one made) would be less work to adapt than the former option. However If Bandaro is willing to weld the sprocket on then a shaved #40 option with a spacer bushing would probably be easiest, just not so quickly/easily replaced if it needed changing.

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Miles   100 GW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by Miles » Nov 05 2010 6:39pm

You can get these in UK:
http://www.technobotsonline.com/sprocke ... ckets.html (Pilot bore 10mm)
The roller diameter for the British standard 1/2" chain is about 0.5mm larger than for #40, though... Probably too much difference......

I seem to remember that Matt had some adapters for freewheels made up. What bore were they?

Staton do adapters with 5/8", 3/4" or 1" bores:
http://www.staton-inc.com/store/product ... 86-25.html

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bandaro   10 kW

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Re: Repository for 3D Part Models, Drawings & Schematics

Post by bandaro » Nov 05 2010 9:38pm

hmmm but technobots dont have 11 tooth unfortunately. I was considering ripping one off a cassette and welding a plate in the middle, but I was hoping to get it machined out, just because it will look a whole lot neater and probably be stronger. Welding onto the axle shaft is not an option unfortunately.

So at risk of being a pain, would it be possible to upload that in a rhino friendly format Miles? it is having an error and i cant even open the pdf as a 2d image on rhino. Or is it just my version thats playing up?

thanks all for the help, there is so much i still need to learn...

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