Tricks of the Trade

tjb

H-M Supporter - Diamond Member
H-M Lifetime Diamond Member
Joined
May 3, 2017
Messages
2,027
I'd like to suggest a discussion that I suspect would have broad appeal for us amateurs and, perhaps, some of our more experienced members, as well.

This morning, while machining a piece of aluminum, I came up with an interesting idea that made life a lot simpler for me. I needed to mill some 3/8" stock that was a little over 6" long down to exactly 3/4" wide. Since the piece was longer than the width of my Kurt vise, the challenge was going to be getting the width to as close to exact as possible. I visualized facing one side, flipping it, measuring with calipers, cutting, tweaking, etc. until I got it right. About half-way through the project, it occurred to me the rear jaw on my Kurt vise is machined exactly 1.75" tall. So given that I'm using 1" parallels, I can mill one side, flip it, take an exact measurement 1/4" higher than the rear jaw, mill to that point, and I'm done. I did that and measured the result against a machinist's square that has a 3/4" blade, and it was perfect. I was a happy camper.

I gloated for a few minutes on what a clever discovery that was for a neophyte, but since there was no one in the shop but me, I got over it pretty quickly. Then I brought myself down to reality: I bet most of our professionals and more seasoned amateurs already knew about that trick and many more like it. We rank amateurs who have never even stood in a machine shop with a piece of equipment running have no idea of some of these time-saving short cuts that you guys know second nature because of your many hours of hands-on exposure. Would any you be willing to share tricks like these with the rest of us? Some of the things you do second nature never even hit the radar screen of us who know nothing about how an efficient machine shop actually operates. I am aware that these tips are shared all across HM, but I don't think they're ever compiled in a single space. I suspect it would be of monumental benefit to members in my category.

We have other threads here at Hobby Machinist that have been running and added to for years, and we amateurs benefit greatly from your knowledge and willingness to offer your expertise. So, if you're so inclined, PLEASE share tips and tricks that you know which might make machining a little more efficient for us rookies. Don't assume we already know it. We don't. And I promise you, we'll appreciate it.

Regards,
Terry
 
I love this idea Terry, I wish I had something to contribute. :(
 
If you need to grind a 90° fillet weld, a flap disk on a 4 1/2” angle grinder will amaze you with what it does. They must have designed the shape of the edge of the flap disk for just this purpose.

Similarly, any SS wire wheel will do the same for a bronze brazed fillet. The bronze smears into a smooth surface.
 
Last edited:
Their are no tricks to the trade . You are in or you are out . Tools are expensive and 99.9% of people don't realize it .
 
I imagine that everybody knows about using a magnet to help clean up a machine tool (I use a cheap cow magnet), but have you tried a telescoping magnet to get in there & remove chips while you are boring on a lathe? It works great & it is safe.

183B9F97-437B-4C08-9788-F1F0EF941524.jpeg
 
I love this idea Terry, I wish I had something to contribute. :(
Thanks, David.

I bet you'll come up with something sooner or later.

Regards
 
I'm having a bit of trouble following cause I'm an idiot. You turned 3/8" stock into 3/4"? That is a trick for sure
That's a good one. You're not an idiot. I guess I just did a poor job of explaining what I did. I had a piece of 3/8" x ??? that was a little over six inches long. I need the ??? to be exactly 3/4" so I'd end up with a 3/8" x 3/4" x a little over 6". Both sides of the 3/4" were rough cut on a bandsaw - therein lay the challenge.

That better?
 
Their are no tricks to the trade . You are in or you are out . Tools are expensive and 99.9% of people don't realize it .
Okay, let's call them 'short cuts'. Or 'timesavers'. No doubt, tools are expensive. That's why I don't talk about them over breakfast until AFTER I've bought them.
 
I imagine that everybody knows about using a magnet to help clean up a machine tool (I use a cheap cow magnet), but have you tried a telescoping magnet to get in there & remove chips while you are boring on a lathe? It works great & it is safe.

View attachment 355743
Good one. I usually wrap a piece of shop paper towel around the end. Makes cleaning the magnet a little easier.
 
Back
Top