Trying new things usually sparks innovation. I'm working on re-building some of my personal guns and building a 9mm AR because I'm interested in the platform and to see how it functions or could use improvement. After I put some rounds through it, I might ultimately decide that it will become a test pig for some new product ideas.
Here's a new bolt that's fresh off the machine. You can see it's sporting one of our billet QPQ extractors and a new design ejector.
We like to periodically function check out bolts, check the headspace, and look for ways to improve out machining methodology on a monthly basis to make sure we're producing the best product out there.
On a monthly basis our programmer takes a look at the G-coding for making our parts and tries to make the program more efficient, whether it be reducing cycle time, trying new tooling combinations, or finding was to mitigate deburring by hand.
Here's a DPMS pattern AR10 bolt that just came off the machine.
It seems we're up to our eye balls in bolts this week. This is one of about 10 boxes.
These will later go to the metrology lab to inspect dimensionally, then shot peened to relieve any stresses, then to heat treat and coating.
After two months of head scratching, busted knuckles, swearing, and learning a lot about BMW M52 engines, the beast is finally running reliably, detailed, and up for sale. It was certainly a fun side project while things were slow at the shop.
I came across this gem on Craigslist the other day and had to go at least check it out. It was a 1973 Mercedes 280 the the owner only wanted $1200 for. The car was in decent shape for it's age, but since the dead BMW is still in the garage, this one won't be coming home today.
While I'm waiting for a few parts to come in to get started working on the engine of the BMW, I decided to conquer cleaning up the head lights. Over the years, the exposure to UV light degrades the plastic lenses on vehicle headlights. It is possible to freshen them up a bit by going through the process of wet sanding and polishing them.
I started with some 600 grit sand paper making sure to evenly sand the entire surface of the lens and worked my way up to 2500 grit in five stages. After that was done, I used a Porter Cable random orbital buffer/polisher with different backing pads and compounds to get the headlights polished. While I had the lights out of the car, I also replaced the plastic adjusters inside the lenses. Over time these can fail from all the heat cycling they experience.
The end result was a night and day different from where they started and for a few hours of work it was rewarding and certainly better than spending the money on a new OEM set of headlights.
When I got to poking around to replace the crank position sensor, I did some looking online and found the sensor is on the front of the engine right above the harmonic balancer. When I looked at the actual car, the sensor or harness was no where to be found and I thought to myself well surely that's the problem. Turns out half way through the model year BMW decided to change the position of the sensor and mine was actually on the side of the block back near the flywheel.
A quick scan of the BMW shows there's a few things wrong with it. Thankfully, I don't think it's the head gasket like the previous owner though it was.
I my buddy frequently surfs Craigslist for car deals. He sent me one for a $900 1999 BMW 528i that supposedly had a blown head gasket. After doing a bunch of research and talking the guy down to $700 it was mine. I will say having a trailer with a winch on it is a saving grace when heaving a dead horse like this up on a trailer.
I'm still on the search for .22 ammo to start the testing for my integral .22 project. After much teeth gnashing, I finally gave up today and broke out the credit card to buy some more .22 online at around $0.10/rd which I wasn't entirely happy about, but it is what it is.
Hopefully within the next week or so, I'll be able to get the receivers cut and be able to work on barreling them.
After a long evening of wire wheeling, welding, and clear coating, the table is finally done. It only took over a year, hogged up most of my kitchen, and cost more than my truck, but it's finally done.
It's a long and tedious process, but shotgun barrels of the proper wall thickness can be cut for removable choke tubes.
For those of you that own rifles with the URX series of rails know what a pain it is to either send you upper into a smith to have it worked on or fork out the dough for a wrench to do it yourself. Within the next few weeks, we'll have something available at a reasonable price to change that.
It's been a while since I've had some time to work on my kitchen table project that is pushing going on a year now. The other day I finally when to the local woodcrafter's and picked up some polymerized linseed oil to finish the wood trim part of the table. It was pretty hard to photograph in my kitchen, but you can see that grain of the black walnut looks really nice. That gave me a good pump up to get working on this again and get it finished here in the next few weeks.
Here's a partially finished AR10 bolt blank that was a demo to test out a new program for the machine.
I brought the wood bits of my grate table home from the shop today. A few coats of finish and that black walnut should really look nice.
The sample came back from the heat treat after getting hardened to 35-40 RC, then got coated in black oxide.
After test fitting the wrench on a barrel nut, it was confirmed that there wasn't any measurable shift in dimensions from the heat treated. Now it's time to fire up the mill and start cranking these puppies out.
Machined a sample wrench today to re-check the geometry of my model. It's been a little while since I've made some of these, so it's always good to give everything a quick double check before you do a production run.
Some lightweight carriers that I just finished up the final machining on. Next they're off to get heat treated, then bead blast, then to the coaters for QPQ.
d.wilson mfg works on interesting projects from time to time, so this is the place we'll share some of them.