will gasoline melt ABS?

[Elbot]

I lost my car's gas cap. A friend drives the same car. I was thinking I could scan in my friend's gas cap and then print it out. I estimate that it should cost no more than $5 to print out. The gas cap costs $10-20, depending on who I get if from. So, I'll save a bit of money, but I am scared that gasoline will melt ABS. If so, then, what about PLA? What plastic that the makerbot can make with is compatible with gasoline? Thanks.

[Chuck McManis]

ABS is not an acceptable material to make a gas cap. My suggestion is that you find a 'pick your part' type junk yard and get one for a couple of bucks there. Modern gas caps on cars are both caps, and vents, which is to say they maintain a particular pressure in your tank, venting pressure if it gets too high.

On Mon, Jul 9, 2012 at 9:32 PM, Elbot <tomas...@gmail.com> wrote:

I lost my car's gas cap. A friend drives the same car. I was thinking I could scan in my friend's gas cap and then print it out. I estimate that it should cost no more than $5 to print out. The gas cap costs $10-20, depending on who I get if from. So, I'll save a bit of money, but I am scared that gasoline will melt ABS. If so, then, what about PLA? What plastic that the makerbot can make with is compatible with gasoline? Thanks.

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[66tbird]

Cheap is one thing, dangerous and cheap is another, I'd pass on that application

[Sean Tu]

On Tue, Jul 10, 2012 at 12:35 AM, Chuck McManis <chuck....@gmail.com> wrote:

ABS is not an acceptable material to make a gas cap. My suggestion is that you find a 'pick your part' type junk yard and get one for a couple of bucks there. Modern gas caps on cars are both caps, and vents, which is to say they maintain a particular pressure in your tank, venting pressure if it gets too high.

Along with what Chuck said, an un-vented cap will eventually cause the check engine light to come and set some 400 series code.

If they test for emissions where you live they used to test the gas cap, although I believe they now rely on the OBD2 system to detect a bad cap so the equipment to do the test may have been taken out along with the floor dyno that was used for pre-96 OBD1 cars.

[Adan Akerman]

All that said, the impulse is just right... Carry on, just not with gas & complicated regulated venting systems!

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