I'm using a good old plumbing ball valve and a male and female 1/4" air nipple screwed together with the hose clamped on one end to reduce end flow (fits perfect on 3/8" hose) This was a mock setup I did tonight. Worked perfect! I'll be using some clear 3/8" tubing for the actual hose though and the tank above. I saw they sell fittings that clamp to your bar, but I don't like the way they wrap around the chain.
Not sure if it really reduces flow, as a lot of oil could still come out through that hole on fully open valve, just helps to aim it a little better. I figure just enough to get a steady drizzle should be sufficient! I even tried installing an aftermarket oiler with a better flow rating and drilling out the bar oiler holes a little, but it still couldn't even handle some 24" or so pecan. Was gumming up bad, you can see the remnants in the pic with a nice coating of WD40 lol.
That's what I need, a metal end that stays in place over the chain. My hose end zip tied to the post is too flexible and tends to wander too much. I can always crimp the metal end of anything a bit til I get the flow I want at wide open.
Good idea, I might actually fill the nipple with epoxy putty and drill it back out a little smaller.
You need to use a needle valve. Look at drip oilers for old equipment or "auto" oilers for industrial chains. They will have the valves that work real well, and they arnt very expensive.
So what would be the proper way to do the banjo bolt? Drill a hole right at the bottom edge of the bar slot all the way through, shim with washers to get hole centered in bar slot, then find some kind of fitting to attach the hose to feed the threaded end of the bolt? M8? M6?
Yes, in a nut shell. I didn't use a store bought banjo bolt and made my own out of a 7/16" bolt and tapped the center for 1/8" pipe thread to make the connection a bit easier (50 ways to skin a cat here.) This allowed me to use to use the cross hole as a restrictor to control oil flow. You could do the same thing with a smaller bolt and turn down the threads into a barb and just clamp a hose to it. Either way it's fairly easy to do. The hardest part was drilling the bar and getting the hole at just the right spot.
I always overthink things. I'm sitting here thinking of what fitting I could use to connect the hose to the bolt when I could just slap a hose clamp on there. "Keep It Simple Stupid"
Yeah, I was thrilled when I got some cheap demo/display lopro bars from the UK and the guy had already drilled them properly for an oiler and even included the oiler bolt. So I just have to drill the hole in any bar I want to put it on. Can pretty much trace location off my lo pro bar, adjust a little lower for a .404 bar. I found some cheap as dirt carbide tip multipurpose bits I got from China that work fantastic for bar drilling. Drilled new oiler holes on my 72" titanium GB bar effortlessly with them on my drill press. I learned awhile back that sharpening carbide tipped concrete bits a little makes them great bits for drilling ultra hard steel, but that's basically what these are already. It's crazy to me that next to no one has ever marketed these type of bits in the US for hard steel drilling, simplest cheapest bits imaginable. Bosch makes single bits kinda like this for $6-7 each that don't even work as well. The orange ones not the black ones shown. https://www.aliexpress.us/item/3256805006277583.html
I'm a visual person, pics?
https://www.granberg.com/product/0967f-bar-oil-injector/
Granberg done lost their minds! They want pretty much $100 for everything. I'll have about 30 bucks invested doing it myself lol
I didn't have any pictures of how the big mill was set up on my phone, so it was an easy way to show the basic idea. I'd never buy any of their set up. Too expensive for what you get. I certainly didn't come up with the idea, but I thought it was a good idea to share.
Most simple niche products like this make way more sense to do DIY and there didn't even used to be a market for such things because everyone chainsaw milling was so competently DIY and no one would buy them just make them. I did the basic PVC pipe and end caps reservoir a lot of people do, threaded a fitting on the bottom and hose clamped it on the post. Same with router planing sleds, all the companies making them now want top dollar for easily buildable professional systems with linear rails you can put together for 1/3 of their price. But there are a bunch of hobbyists getting into the slab game with money now who will pay to have it made for them.
