GM Maf STL files
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TECH Apprentice
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Joined: Aug 2009
Posts: 351
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From: Hampton Roads, VA
GM Maf STL files I was wondering if anyone has STL files or a STEP model of the MAF sensor for the TPI/LTx/LSx ? If not I could create them, but it would be much easier if they were existing and someone could share them.
I'd like to print them with some extra material so I can add a nitrous fogger to it so really I just need the back side. I also considered adding a band around the factory part with threads for the single fogger.
With 3d printing there's a lot of options. I also considered 3d printing a timing chain cover with the mounting for the crank sensor since it's such a rare part. There are factory timing chain covers in plastic so it seems like the temperature might not be a big issue. PAHT CF15 is good for 300 degrees so I think it's suitable. I'd want to take some temperature readings but since it's cooled by oil and keep cool by the fan it might be okay in that application. Any thoughts on that are appreciated as well.
I'd like to print them with some extra material so I can add a nitrous fogger to it so really I just need the back side. I also considered adding a band around the factory part with threads for the single fogger.
With 3d printing there's a lot of options. I also considered 3d printing a timing chain cover with the mounting for the crank sensor since it's such a rare part. There are factory timing chain covers in plastic so it seems like the temperature might not be a big issue. PAHT CF15 is good for 300 degrees so I think it's suitable. I'd want to take some temperature readings but since it's cooled by oil and keep cool by the fan it might be okay in that application. Any thoughts on that are appreciated as well.
Staging Lane
Joined: Oct 2020
Posts: 86
Likes: 7
From: St. Louis MO
I'm sure there are some files on grabcad. I doubt there are any for the fbodies tho. I may be able to get a cad guy to model one up. I know there is a fella on FB thats machining TC covers, he may be able to mod his cad file for provisions. As far as material for printing is concerned, I cut metal so that's out of my league. I'm going to keep an eye on this tho. GL
Thread Starter
TECH Apprentice
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Joined: Aug 2009
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From: Hampton Roads, VA
We are looking at 3d scanners now and it might be possible to get a cover scanned in the future to get the geometry from the original part. The cost for scanning isn't cheap so I'm hoping we get one. Otherwise I might just do a flat scan on a large copier of the bolt patterns and draw the rest of the cover from scratch. Printing the part should be easy since there general tolerance is about +/-.005". I can print the smaller holes and then ream to size and the rest of the cover would be good to go. Higher temp plastics (ULTEM) are good to over 400 deg F which should be okay for the application. This could be a good alternative for those looking for the LT1 cover with the sensor mounting for the reluctor, people could print their own for far less than the $300+ people are asking for billet ones.
If I do this design work I'll likely offer the printed version for sale to anyone that wants to buy one to get some of my development cost back and help people looking to upgrade their LT-1.
If I do this design work I'll likely offer the printed version for sale to anyone that wants to buy one to get some of my development cost back and help people looking to upgrade their LT-1.
