R151F bell housing cad-drawing
- Thread starter Hdj75
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I don’t have a cad drawing but I can ship you an R151 bell housing for a 1HZ if you’d like as long as you return it when you are done.
Hello Beno, If you are willing to use the app linked below, I could see if I can reverse engineer this into NX( CAD tool) from the point cloud.
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Hello Beno, If you are willing to use the app linked below, I could see if I can reverse engineer this into NX( CAD tool) from the point cloud.
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I can do that.
Yes, Since you just really need the 2d interface layout, this should be a bit easier. What file format would you prefer?
Cheers, James
- Thread starter
- #8
Thanks! Would STEP format be the best?
Yes, I can export step214 or step242, whichever is best for you.
Not sure what the accuracy and precision of that phone app is, but based on my research about building engine adapter plates transmissions like the R151 require 0.005" or less runout between the center of the crankshaft and the center of the input shaft. Too much runout will destroy clutches, input shafts and bearings, and pilot bearings.
The critical aspects will be the locations of the dowel pins in the bell housing relative to the crank/input shaft centerlines.
The critical aspects will be the locations of the dowel pins in the bell housing relative to the crank/input shaft centerlines.
Yes, I agree, the perpendicularity is fairly easy to maintain but getting the pin locations correct to ensure
True position, straightness and coaxiality, around the coaxial datum is of utmost importance. Let’s see what numbers we get back from the imaging software. Hopefully they are nice even numbers to work from. If not, we will have to find another way with regular metrology tools.
In my case I couldn't find a machine shop locally that had the equipment to transfer the location of the input shaft to the front face of the bell housing, so I took an empty transmission case and bell housing to a guy with a precision 3D scanner. Cost me $100 to have the scan done and a CAD model of the mounting holes and input shaft location made.
- Thread starter
- #13
I think both are good. I have to ask a friend to use his Solidworks anyway as I can't use it
