69-74 Wiper Motor Wire Seal

[Engineer8000]

Has anyone found a suitable grommet for the wiper motor wires? I have searched the google for a few hours and can't find an off the shelf grommet. Could this be 3-D printed?

 

[charliemeyer007]

There are more flexible filaments than PLA to print with.

 

[rlong]

Try “D” shaped grommet search. I got hits as illustrated below (but need to get back to actual job. : )

 

[Engineer8000]

That was one of the many I tried, could not find the correct size. I found a place that 3d prints flexible stuff so I am going to try that.

 

[45Dougal]

You can either draw it up and get some printed, or else get a mould machined from solid and pour some yourself?
More investment but will last a long time.

 

[FJ40Savvy]

Likely possible to print with flexible filament however it is hard to get good results. A print print file (STL file) of the part needs be created. A original part would be required to get all the dimensions to create the file.

 

[45Dougal]

Likely possible to print with flexible filament however it is hard to get good results. A print print file (STL file) of the part needs be created. A original part would be required to get all the dimensions to create the file.

Sketching something simple like this in CAD is easy enough - i don't mind doing that myself, but yes you need a good part to measure and copy.
The range of materials available now is mind boggling. I've used IMaterialise quite a few times and they alone have dozens of materials.
The problem is finding the correct material for your application.
Printing a mould, and pouring your own material into it gives you an even bigger range. Some even do wax printings that you can melt out afterwards

 

[charliemeyer007]

I like the concept of Lost PLA casting. Print your model in PLA. Put model in plaster. Bake, PLA evaporates. Pour liquid into plaster mold. I have a bunch of platinum/iridium spark plugs and breaker point. I want to cast me ring. Maybe a ruby or emerald to spice it up.

That silicon mold making stuff that's pourable until it cures would make nice castable seals/plugs. Print PLA mold blocks. Place in plaster, baked. Cast a resuasable "pot metal" mold for the silicon seals.

Casting aluminium isn't all that hard - we did that in jr. high school. Brass is gassy from what I read/watched. I'm thinking platinum/iridium will be a hole new level of heat.

 

[PidgeonGuggolo]

Please look here:

FIBERFLEX 30D

FiberFlex 30D is highly flexible filament characterized by reduced hardness up to Shore 30D. This rubber-like filament is impressively soft.

fiberlogy.com

Ive used some of their products and it works very well. I can recommend it. The part is slightly tricky because with flexible filaments the overhangs are not easy and you cant really print support material with the flex... at least in my experience you always need to cut the supports out with a knife. But if you dont mind then its not a hard part to do.

 

[pardion]

I used a round rubber grommet on a couple of these that are almost finished.

 

[Engineer8000]

Those look great

 

[pardion]

Those look great

Thanks, I just hole punched a 3/8” hole plug grommet, but would be interested in a factory duplicate.

 

[Engineer8000]

Where are you getting the non locking connectors? I can only seem to find the locking bodies.

 

[pardion]

Where are you getting the non locking connectors? I can only seem to find the locking bodies.

I got them from Matt @ Rising Sun Mechanical.

 

[Engineer8000]

I had this nylon piece made for the wiper motor. Not sure if I like it yet.

 

[charliemeyer007]

I think nylon with some flexible sealer would be way more UV/ozone resistant and last forever.

 

[pardion]

The two plastic filler pieces would be good to reproduce in nylon.