I have looked for a tool to cut a round slot for small O rings for 1/8 inch holes in a flange. I have not found any tools for small O rings only large ones, so I made one for use in aluminum out of steel fuel line by cutting slots in the end to act like blades and epoxied it to a 1/8 inch drill bit. It is slow but it does work. Also I have been looking for a tool to cut an annular groove inside a 3/8 hole in an aluminum casting. The need for this annular groove is to operate a spool valve so as to take the side load off the spool valve under pressure. I have not found one so I made my own tool from a cut down Dremel cutting tool works great. Needed a drill .372 inch to make a bore in an aluminum casting for a .371 spool valve. Again I could not find one but at a yard sale for a dollar I bought an old cheap letter size drill set made in India and The U size drill was not the correct size .3680 but was actually .372 just what I needed to make the bore in the casting for the spool valve. Sometimes things just work out and sometimes they don't. 😊
As for cleaning things like disintegrating foam and anything sticky, take a look at a product called Rapid Remover. It's an industrial product originally made for the adhesives industry. Removes anything sticky within seconds. At one time it could only be had in a gallon or more, but now 32oz bottles can be purchased on Amazon. It's not terribly inexpensive, but a reference grade product. It's used in many applications. Have some tar stuck to your car? No problem. Took off a sticker and some of it was left behind? Less than a minute to remove. Edit: Almost forgot. If you buy NOS tooling that's stained with dry Cramolin, this stuff with a brass brush brings back a bright finish.
Stuart, you're on quite a roll! One thing you didn't cover is the difference between boring, bore-ing, and boar-ing - it would fit well in your series!
Marketing I guess, but the proof is definitely in the pudding. They scream like a banshee if you even imagine running them too fast and the countersink will look like it was chewed in by rabid squirrels.
In my experience they work pretty good on the lathe and much more smoothly than 3 flute ones. 3 flute start to jump around once the cut gets deeper, especially on a small machine. At least that's what I noticed so far.
Great question! My first countersink was a 6-flute "chatterless," which chattered like crazy. Thought there was something wrong with my setup; the machine could have been more rigid. Then tried a Weldon zero-flute. It was like a different world.
Thank you, great info. Just please, for the future, watch about audio (distance between your mouth and microphone) because there is a loooot of 'ts' sounds that just killing microphone and my ears.
Rubbing alcohol if you can find it gas if you can drip them in a sized container one piece at a time and shake tell clean then oil with your favorite libation 😉😉 replace foam with better foam, wood, or in most of my cases pappertowl/shop rag whatevers closer at hand wen I get to that step 🥴 🥃cheers🍻
I have looked for a tool to cut a round slot for small O rings for 1/8 inch holes in a flange. I have not found any tools for small O rings only large ones, so I made one for use in aluminum out of steel fuel line by cutting slots in the end to act like blades and epoxied it to a 1/8 inch drill bit. It is slow but it does work. Also I have been looking for a tool to cut an annular groove inside a 3/8 hole in an aluminum casting. The need for this annular groove is to operate a spool valve so as to take the side load off the spool valve under pressure. I have not found one so I made my own tool from a cut down Dremel cutting tool works great. Needed a drill .372 inch to make a bore in an aluminum casting for a .371 spool valve. Again I could not find one but at a yard sale for a dollar I bought an old cheap letter size drill set made in India and The U size drill was not the correct size .3680 but was actually .372 just what I needed to make the bore in the casting for the spool valve. Sometimes things just work out and sometimes they don't. 😊
Excellent explanation. Thank you.
Thank you. I really enjoy your discussions on the basics like this.
As for cleaning things like disintegrating foam and anything sticky, take a look at a product called Rapid Remover. It's an industrial product originally made for the adhesives industry. Removes anything sticky within seconds. At one time it could only be had in a gallon or more, but now 32oz bottles can be purchased on Amazon. It's not terribly inexpensive, but a reference grade product. It's used in many applications. Have some tar stuck to your car? No problem. Took off a sticker and some of it was left behind? Less than a minute to remove. Edit: Almost forgot. If you buy NOS tooling that's stained with dry Cramolin, this stuff with a brass brush brings back a bright finish.
Stuart, you're on quite a roll! One thing you didn't cover is the difference between boring, bore-ing, and boar-ing - it would fit well in your series!
Excellent again. Thanks
Great series, thanks.
well done
I normally use brake cleaner. If is not the right approach, then the next option is to use a ultrasonic cleaner
Interesting. Nice video
Why do they sell 6 flute countersinks as chatterless if you say they chatter more?
Marketing I guess, but the proof is definitely in the pudding. They scream like a banshee if you even imagine running them too fast and the countersink will look like it was chewed in by rabid squirrels.
In my experience they work pretty good on the lathe and much more smoothly than 3 flute ones. 3 flute start to jump around once the cut gets deeper, especially on a small machine. At least that's what I noticed so far.
Great question! My first countersink was a 6-flute "chatterless," which chattered like crazy. Thought there was something wrong with my setup; the machine could have been more rigid. Then tried a Weldon zero-flute. It was like a different world.
Thanks Stuart !!
acetone will usually remove most sticky stuff
I usually try Naphtha first before using Acetone. Naphtha has the advantage of generally not attacking paint or part markings.
Cheers from NC/USA
yep...ultrasonic with heat
Thank you, great info.
Just please, for the future, watch about audio (distance between your mouth and microphone) because there is a loooot of 'ts' sounds that just killing microphone and my ears.
I've made some improvements over the years as I've learned how to make videos. Hopefully my more recent videos are less abrasive to the senses.
Rubbing alcohol if you can find it gas if you can drip them in a sized container one piece at a time and shake tell clean then oil with your favorite libation 😉😉 replace foam with better foam, wood, or in most of my cases pappertowl/shop rag whatevers closer at hand wen I get to that step 🥴
🥃cheers🍻
4 years too late but harbor freight sells a cheap ultrasonic cleaner that’ll clean those c’bores.
@@stanmarsh2499 It’s never too late to comment on a video.
ultrasonic cleaner in a kerosene bath.
Thanks for that! I have an ultrasonic cleaner and was considering putting some kerosene in it. Now I know I won't blow up.
Oh Oh Oh! Burn the foam out.
goof off/ Goo be gone and non abrasive scotch bright or 3-m pad.
Too much talking, no demonstration at all.