Posts by tufual

true

believe it or not ' well used trigger mech ' is one of the reasons why i wanted to make my own trigger , i can set the amount of play in the trigger housing to my preference , adjust trigger pull and easily service and replace parts as i see fit , i am not putting down the trigger manufactures but i would 'trust' a trigger that i made and tested myself more than one i bought , plus when i was looking at the 'best' spearguns available like Riffe i taught that the trigger mech was to weak even though i know Riffe has a great record .

welcome

what caused the mako to misfire

i agree with Dan , but personally i think it is important to view all spearguns and trigger mechs as 'unsafe' , regardless of brand or how many hours of R&D went into it , muzzle control is king in terms of safety .

i understand your worry and share in it and i will make sure to test it with hydraulics before use . last night i places 1.25 tons of rotational force on the trigger and sear with no slipping or damage .

thanks

nice pics and welcome

i placed it in an 2 1/2 ton engine hoist to test it and it broke a 1x4 pitch pine board with no problem . from my use of the hoist it felt like around 450lbs of force [ my best guess ]

that is also a sample of the 8mm [ 5/16 ] tool steel rod that i will be using to make the spear shafts . not stainless but stiffer than stainless and cheap enough to replace if bent . the supplier also said that i could have it heat treated to make it spring steel .

these are the parts i carved out of stainless steel flat stock . it was cut from 5/16 x 2'' flat stock .the housing shown is just for mock up , the real one will be made from 3mm flat stainless ,but the trigger internals are the ones that will be used ,[ATTACH][ATTACH]6743[/ATTACH][/ATTACH] although i have not made the safety and line release yet . any suggestions are welcomed .

these alloys are made for metal dentures , they are strong [rigid] but can be bent many times before breaking to enable denture adjustments they will also NEVER rust [ once left a piece of alloy in a drain that released soap and chlorine from a washer for 7 years and it kept its mirror shine . however even though i cast these parts i decided not to machine them because it is easier to cut the trigger out of flat stainless stock . i would be posting pics on my pitch pine speargun thread .

i recasted the parts out of a ''softer'' alloy that i can machine , although it is steel alot harder than steel .

thanks for info , been trying to figure out a way to drill it . thanks

whats edm ?

welcome

the sear was cast well but was way to hard to drill [ burnt 3 brand new titanium drill bits and 2 tungsten bits ] will try a different alloy .

thanks

Made the first casting , going to see how it works , still have to cast 2nd part

Rick told me he doesn't sell any trigger mechs just the whole gun .