Sadly, that's why the dirty little bastards have so much of our business. We screw each other and they work together.
i have had to deal with machine shops. that is why i built my own.
to the OP. ever consider making the adapter out of polymer?
One good example of poly strength, look at the MD Arms 12 gauge drum, he drove his Toyota pick-up over it and it only put some scratches in it.
You would most likely have to make it with thicker walls but you should be able to still use the metal mag catch.
Hello renegadebuck,
J427x is on the right track !!! A contract machineshop is for prototype work or repair not factory, serial production. A machineshop can help you tool up your factory. Such work isn't cheap. If your are seeking to be a "captain of industry" you sometimes must start out as a corporal.
Far too often in this country gun parts and accessories are produced and retailled at prototype prices from small machineshops. Such items tend to be very spendy and buyers look for copies from asia.
If your product rates manufacturing vs prototyping then establish an efficient production facility even if it is in a small garage like the "two Steves" who started Apple Computers, or in a basement like Joey Rudke (sp?) aka "Mr Gasket". Use machinery such as lathes, mills, grinders, etc to produce the special tooling, fixtures, jigs, and dedicated machines that make your product(s). Sometimes simple mods to a common little machine can alter it to produce your item with ease and for very little capital investment.
Manufacturing can be a creative, challenging, and fun enterprise.
VD
One good example of poly strength, look at the MD Arms 12 gauge drum, he drove his Toyota pick-up over it and it only put some scratches in it.
You would most likely have to make it with thicker walls but you should be able to still use the metal mag catch.
Was just throwing in my .02 centsYou have one of them in metal. Would you rather have one in polymer?
Was just throwing in my .02 cents
But I think your product would work being made out of plastic, just have to use the right stuff, as mentioned before some plastics are as good as metal.
+1
i also have a cav-arms ar-15 lower that is nylon/polymer. the mag well works very well on it. i can't see any reason not to use it.
BTW a polymer mag adapter would also be very light. something to consider when your humping that rifle and 500rds in the brush.
Hi Rengadebuck,
Polymer molding, die casting, or MIM require molds that run in the tenthousands upfront. For the numbers you are planning to sell you are better off with laser-cutting (possibly stamping) and welding in fixtures.
Please talk to the machineshop owner again and try to negotiate a deal that is acceptable for both parties (and us waiting for the adpters).
Another area where Asians have a leg up on most of us is patience, which is key to negotiating.
Try to incorporate some small tabs or "ears" in one part that interlock in notches on the other part. Then use a TIG welder (or robotic laser-welder) to melt the tabs into the surrounding material. Sometimes you can even spotweld several tabs against a flat surface in one shot. Whenever you tack-weld two pieces and have to take them apart again you will be amazed how much a couple spots hold. (Your car is held together by a couple thousand of them.) Longer beads will increase the risk of distorsion and the need for rework.
Feel free to PM me. I am not just a potential customer but also a mechanical engineer with extensive metal manufacturing background.
Hello alpine44,
You are quite right about the extreme costs of injection molding die work in this country !!
I tend to think that renegadebuck might be able to do 100% of his mag adapter fabrication "at home" with some basic tooling such as sheet metal shear brake, box notcher, drill press, jigs, arbor press, and a spot welder. Used equipment would suffice. It is difficult to say for certain exactly what could be used without viewing the item, materials, and tolerancing.
VD