dlaery Posted August 10, 2023 Report Share Posted August 10, 2023 where can you get these? i am having trouble with voids or air pockets in the bait i am injecting. this shows how the plastic goes in the mold. several videos show and or recommend these extensions, so i was wondering where to get them. Quote Link to comment Share on other sites More sharing options...
Fishermanbt Posted August 10, 2023 Report Share Posted August 10, 2023 https://store.do-itmolds.com/Sprue-Extender_p_1257.html https://fatguysfishing.com/sprue-extender/ Quote Link to comment Share on other sites More sharing options...
dlaery Posted August 11, 2023 Author Report Share Posted August 11, 2023 Thanks! Quote Link to comment Share on other sites More sharing options...
bryanmc Posted August 12, 2023 Report Share Posted August 12, 2023 You can also make your own with a piece of copper tubing and a copper union. Can't remember what size off the top of my head though. 1 Quote Link to comment Share on other sites More sharing options...
dlaery Posted August 12, 2023 Author Report Share Posted August 12, 2023 Thanks! i will look into that Quote Link to comment Share on other sites More sharing options...
Les Young Posted August 13, 2023 Report Share Posted August 13, 2023 On 8/12/2023 at 8:21 AM, bryanmc said: You can also make your own with a piece of copper tubing and a copper union. Can't remember what size off the top of my head though. Bryan if you think of it please post. Quote Link to comment Share on other sites More sharing options...
dlaery Posted August 14, 2023 Author Report Share Posted August 14, 2023 I found the vid Making spru extender I made some, didn't have the correct sockets but I used a small press I have. we haven't tried them yet 1 Quote Link to comment Share on other sites More sharing options...
bryanmc Posted August 14, 2023 Report Share Posted August 14, 2023 Interesting video. I don't think they need to be that long though. If you notice, the BT extender has a much smaller hole than 1/2" copper tubing. Mine are one coupler with just enough tubing sticking out to fit all the way into the injection port. 1 Quote Link to comment Share on other sites More sharing options...
basskat Posted August 15, 2023 Report Share Posted August 15, 2023 I made three different sizes. Depending on the mold I use the shortest you can get away with. Trial and error is the best way to decide which to use. Quote Link to comment Share on other sites More sharing options...
Miamisheriff Posted August 16, 2023 Report Share Posted August 16, 2023 Applying injection pressure for a longer period of time will produce better results than the extenders. The extenders will add more hot plastic to the injection but you need to force it into cavities before it cools off to much to flow. Denting is caused by cooling at the cavity gate. It cools before the main cavity does. You have to force the hot plastic in as it cools. 1 Quote Link to comment Share on other sites More sharing options...
