Search found 1731 matches

by Mr Ron
Thu Jun 13, 2019 10:28 am
Forum: General Discussion
Topic: Drill press recommendations?
Replies: 7
Views: 168

Re: Drill press recommendations?

A drill press is a simple, straight forward machine that hasn't changed in over a hundred years. That said, I would look for an old DP, not a new one. I have an old Delta that was built in 1939 and is as good as new today. I use it almost every day. I got it for free, but there are lots of old DPs i...
by Mr Ron
Tue Jun 11, 2019 1:55 pm
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 33
Views: 541

Re: Newbie - Buying first metal lathe

It depends on what kind of work you want to do. A hobbyist that builds small models would find the mini lathe well suited. For serious work on larger projects, like building a live steam locomotive, a larger 12" lathe with a quick change gear box is really needed. It might be noted that the famous J...
by Mr Ron
Wed May 29, 2019 8:03 am
Forum: General Discussion
Topic: Drilling UHMW
Replies: 6
Views: 424

Re: Drilling UHMW

Sometimes I just press the work against the chuck jaws. The UHMW is probably too slick for that to work. Some people face off a blank, then cut some circular grooves in the face and then attach the work to the blank with super glue. The grooves provide space for excess glue. After machining the wor...
by Mr Ron
Tue May 28, 2019 4:12 pm
Forum: General Discussion
Topic: 100+ Years ago
Replies: 22
Views: 1754

Re: 100+ Years ago

I wonder how many millions of pounds (tons?) of spent shell casings were left on the battlefields of he world. Did anyone try to reclaim them after the war? or was it considered not worth the effort? It boggles the mind to think when a cargo ship was sunk with hundreds of tanks, jeeps, trucks, etc, ...
by Mr Ron
Tue May 28, 2019 3:46 pm
Forum: General Discussion
Topic: Drilling UHMW
Replies: 6
Views: 424

Re: Drilling UHMW

Band saw the blanks and finish in the lathe. Pressure turning is the easiest. Put a 4" steel bar in the lathe. Face it off. Glue a piece of coarse sandpaper to it, press the blank against the sandpaper using the tailstock. Take light cuts to finish the OD. WOW1 That is a great idea using coarse san...
by Mr Ron
Tue May 28, 2019 9:19 am
Forum: General Discussion
Topic: Drilling UHMW
Replies: 6
Views: 424

Drilling UHMW

I need to cut some "pucks" from 3/8" thick UHMW plastic. I need to use a hole saw to get the 4" diameter pucks I need. Is there a better way to make these pucks (fly cutter?). Is there a way to use a hole saw that won't melt the plastic? I watched a Starrett video on their new line of hole saws and ...
by Mr Ron
Tue May 14, 2019 11:42 am
Forum: General Discussion
Topic: 100+ Years ago
Replies: 22
Views: 1754

Re: 100+ Years ago

Amazing video! Imagine if a workman made a mistake after so much work had been done. The projectiles had to be spot-on. Any deviation from spec could mean the gun might not fire rendering it useless in the field.
by Mr Ron
Tue May 14, 2019 10:05 am
Forum: General Discussion
Topic: Wood Shaper Cleaning Up Steel Block
Replies: 18
Views: 1142

Re: Wood Shaper Cleaning Up Steel Block

We have a product here called "Evapo-Rust". If it is available in the UK, it is a great product. Other than that, coco cola will remove light surface rust; just keep the cutters and block submerged in the liquid. Coco cola contains phosphoric acid which removes rust and grease. Works in taking oil s...
by Mr Ron
Thu May 09, 2019 9:52 am
Forum: General Discussion
Topic: Making a milling machine riser
Replies: 24
Views: 1679

Re: Making a milling machine riser

Spro's recommendation would also be my recommendation; cut the head of the bolts off and replace them with studs and hex nuts.
by Mr Ron
Tue May 07, 2019 10:37 am
Forum: General Discussion
Topic: Book about precision
Replies: 21
Views: 2094

Re: Book about precision

When I was about 12 (1946), I had a Delta drill press, a small chemical lab, an electronics bench. I would spend my weekly allowance on tools. I would go to Patterson Brothers hardware, downtown New York City on a Saturday morning and spend a few hours there before deciding what tool I could buy wit...
by Mr Ron
Mon May 06, 2019 9:45 am
Forum: General Discussion
Topic: Book about precision
Replies: 21
Views: 2094

Re: Book about precision

I must be some sort of a nut. Other people read romance stories, crime stories, murder mysteries, comic books and even newspapers; me, I enjoy reading technical publications, ever since I was a kid, I would read tool catalogs when other kids were reading comic books. I wonder what a psychologist wou...
by Mr Ron
Sun May 05, 2019 6:35 pm
Forum: General Discussion
Topic: Book about precision
Replies: 21
Views: 2094

Re: Book about precision

Thanks for the great links. Although it is not the book of my original topic, I found this to be extremely interesting. I spent 3 hours reading one of the links. Many of the tests used on machine tools are still used today, but there were described a lot of other tools used to test machine tools tha...