Search found 101 matches

by sgth0mas
Mon Mar 21, 2016 11:53 pm
Forum: Discussion
Topic: EU source for 2-tone plastic
Replies: 8
Views: 1254

Re: EU source for 2-tone plastic

Anyone know a place? They sell it at inventables, but importing it is out of the question forobvious reasons... i mean this: (for sign making) https://discuss-assets.s3.amazonaws.com/434079c4098539f5ec9c1bad2e33f8587bac8b9225dc.png That is called king ColorCore and i typically buy it on ebay. Have ...
by sgth0mas
Wed Mar 16, 2016 12:46 pm
Forum: Discussion
Topic: Help Cutting MDF
Replies: 9
Views: 1888

Re: Help Cutting MDF

Source is ebay, I do expect a reduction in quality no doubt, unfortunately being in Australia shipping is prohibitive to get from anywhere else. Although these same endmills cut 3mm Acrylic like butter (obviously as stated im using a new one for the mdf) I am wondering could it be the MDF supply it...
by sgth0mas
Fri Mar 11, 2016 1:41 pm
Forum: Member Projects
Topic: Potting circuit boards (and staking)
Replies: 7
Views: 1018

Re: Potting circuit boards (and staking)

jkanzaki wrote:I'll look into amazon, thanks.

What valve is that in the photo? I think it's a good idea to inject the compount into a valve like that.
Thats a barbed hose fitting with a male 1/4 NPT thread on the mold side.
by sgth0mas
Wed Mar 09, 2016 1:51 am
Forum: Member Projects
Topic: Making molds for liquid silicone rubber
Replies: 19
Views: 2794

Re: Making molds for liquid silicone rubber

i ended up turning the wires up 90 deg right as they come out of the mold and it did pretty well at keeping the urethane in the cavity. the urethane is so much thinner than i imagined it would be, it's not much thicker than water. i wanna try silicone next! What urethane are you using? My experienc...
by sgth0mas
Tue Mar 08, 2016 4:37 am
Forum: Member Projects
Topic: Making molds for liquid silicone rubber
Replies: 19
Views: 2794

Re: Making molds for liquid silicone rubber

i love it! i tried to inject the first one i made but where the wires stuck out it made a huge mess haha. the pressure with vent tube looks like the perfect solution. i was thinking vacuum originally cause it can pull air bubbles out created by mixing at the same time, but this looks perfect. now i...
by sgth0mas
Mon Mar 07, 2016 2:04 pm
Forum: Member Projects
Topic: Potting circuit boards (and staking)
Replies: 7
Views: 1018

Re: Potting circuit boards (and staking)

Also, amazon has some cheaper tapered bits that may be worth a shot. Youre really only doing a finish pass with them so keep that in mind.
by sgth0mas
Mon Mar 07, 2016 2:02 pm
Forum: Member Projects
Topic: Potting circuit boards (and staking)
Replies: 7
Views: 1018

Re: Potting circuit boards (and staking)

Thanks for sharing. Good article, and definetly peak my interest. There is a esp8266 i want to experiment with potting as well. I have a variety of smooth on silicon from hard to soft. What you reckon a good potting compound would be? and do i need a taper bit? The taper bit you used is quite expen...
by sgth0mas
Mon Mar 07, 2016 4:23 am
Forum: Member Projects
Topic: Potting circuit boards (and staking)
Replies: 7
Views: 1018

Potting circuit boards (and staking)

I just wrapped up a mold to pot a circuit board. If youre not familiar with circuit board potting, its the process of encapsulating a circuit board in a rubber or epoxy. Detailed information on the process can be found on my article here: https://www.linkedin.com/pulse/staking-potting-electronics-hi...
by sgth0mas
Sat Mar 05, 2016 5:26 pm
Forum: Member Projects
Topic: Making molds for liquid silicone rubber
Replies: 19
Views: 2794

Re: Making molds for liquid silicone rubber

Example of liquid rubber lever

Image