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February 18th, 2014, 12:00 AM   #1
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Conrod Drawings

Ive got nearly all the 70 deg and 00-08 con rods drawn or either coming in the post or being measured up

the idea is to have a 3D model of each rod and eventually each big end pin and oem piston to help with 3D design of new engines, find alternatives and check the fit once the stock rods become unavailable or impractical

I have the 628 rod, 550 rods, 644 rods, 501 rod all done, 570 is on the way, 70 deg 450 and the 00-08 400/350/470 are being measured.

if you have a rod that is not listed above and would like to measure it for us then you can help by posting the model details and the measurements as described by the drawing.

for the pre 08 450 I just need confirmation of the length

this is a rough generic eng drawing of a typical barreled rod with the dimensions I need to create a 3D model



also downloadable PDF http://husaberg.org/gallery/d/58441-1/conrod.pdf
Thanks from makazica
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February 18th, 2014, 12:01 AM   #2
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quote this post to fill in the dimensions

posting a few pictures of the rod would also be very useful

A is Length Centre to Centre

B1 width of little end

B2 width of big end

C ID of little end

C1 thickness of little end (including bushing just measure with calipers at the top)

D ID of big end

D1 thickness of big end material (measure with calipers)

E width of beam at little end (measure just near the start of the filet)

F width of beam at big end (measure just near the start of the filet)

G thickness of I beam section

H depth of pocket

J minor diameter (edge) of little end

K minor diameter (edge) of big end

also please include

W = weight !

cheers
Bushie
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February 18th, 2014, 01:52 AM   #3
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Re: Conrod Drawings

as an example this is the 628 rod eng drg

http://husaberg.org/gallery/d/58329-1/628+rod.pdf

if you have suitable software the 3D files are in my gallery in IGS, STL and STP formats

last page of my gallery there is a folder "3D conrods"
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February 18th, 2014, 12:25 PM   #4
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Re: Conrod Drawings

Nice, Bushie!
Are you starting up a production, or what are the models for?
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February 18th, 2014, 02:58 PM   #5
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Re: Conrod Drawings

they are for practice mostly Dr_C, I'm out of firecackers again

I got a few people quizzing me on the rod dimensions last year who were looking for alternative supply by trying to find similar rods intended for other engines so I started to collate a few dimensions as I may need one myself at sometime.

with the 3D models people can check for piston or crankcase contact etc and as you point out yes if you wanted a production run made.. then all the info is available in the 3D models to send via run DMC to the lead billet parkinsons forge or even one of those 3D printers

the models are not 100% accurate of course
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February 28th, 2014, 03:16 PM   #6
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Re: Conrod Drawings

Hi Bushie,

Had a new 628 rod cmm measured at work the length centre to centre of this particular one came in at 136.124 I am thinking perhaps they vary a bit.
The big end dia was 42.004mm, the Carrillo measured 41.998mm
The little end of the 628 rod measured 20,021mm.

I will take one of the cases in and get the deck height and the crank offset measured some time.

Cheers spanner
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February 28th, 2014, 07:05 PM   #7
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Re: Conrod Drawings

nice Spanner

I have 3 628 rods

136.2

136.18

136.17

I think the variation may be due to the little end bushing installation and honing ...

the new rod style form the 570 looks very robust, short and stout .. ours look like steam engine parts in comparison

will put up a pic soon.

570 stroke 72mm, rod length 120.6mm
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March 4th, 2014, 01:01 AM   #8
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Re: Conrod Drawings

Robust everywhere but for the big end bearing surface
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March 5th, 2014, 01:24 AM   #9
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Re: Conrod Drawings

Hi there guys!

I'm still a newbie on the forums, but hopefully I have a worthwhile contribution here.

Bushmechanic,I have a conrod for a 2002 FX470 and 2005 FC 450 which I can measure for you.
Although at a quick glance they looked VERY similar, I haven't actually measured them for myself.
Annother thing, the KTM RFS 450SX (2005-2006) conrod seems to be a match for the Husa 450 rod, if you don't know this already. I made a visual match to an aftermarket rod for the ktm, but I have yet to measure them, so I am only 95% sure of this.

WD
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March 7th, 2014, 12:46 AM   #10
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Re: Conrod Drawings

Awesome Wardog!

the dimensions vary a bit so its good to get a varied sample

yes the rod you mention is almost the same and its available from pro-x

eventually I'll have a drg of each one .. its been super busy this week
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