On Wed, 29 Jul 2015 08:24:13 -0400, "J.B. Wood"
<
arl_1...@hotmail.com> wrote:
>On 07/27/2015 02:51 PM, Jeff Liebermann wrote:
>> On Mon, 27 Jul 2015 14:17:09 -0400, "J.B. Wood"
>> <
arl_1...@hotmail.com> wrote:
>
>> Don't toss the old parts. Glue or scotch tape the pieces together.
>> Fill any gaps with some kind of putty. Using the old part as a
>> pattern, make a two part mold using plaster of paris. Smear the
>> contact surfaces with vaseline so that you can take it apart. Fill
>> the mold with your favorite rubber compound (I used hard automotive
>> RTV) to clone the part. Clean up the flashing with an Xacto knife.
>Thanks, for the detailed info, Jeff. I wouldn't have guessed how to
>make new rubber retainers/bumpers. Folks who restore pinballs and
>jukeboxes probably know this stuff. Sincerely,
Also check with antique auto restorers. It's not very difficult. I've
done it many times with good success. There are plenty of
instructions available on the web. For example:
<
https://www.google.com/#q=how+to+mold+rubber+parts>
<
https://www.youtube.com/results?search_query=mold+rubber+parts>
<
https://sugru.com>
<
http://versimold.com>
<
http://www.freemansupply.com/video.htm>
<
https://www.youtube.com/watch?v=JD-NP0DwLEE>
<
http://tag.wonderhowto.com/cast-rubber-parts/>
and so on. Plenty more including kits and presses. If you need
something flexible, definitely look into Sugru.
Incidentally, plaster of paris and FixAll molds are my favorites, but
you can also make formed molds from just about anything than hardens,
such as silicon rubber. You can also machine or gouge a mold from
wood, metal, plastic, whatever.
Good luck.