Search found 445 matches

by Rick
Mon Oct 07, 2019 8:30 am
Forum: General Discussion
Topic: Steel plate identification
Replies: 22
Views: 1305

Re: Steel plate identification

A few years back my Uncle gave me some 1/2" plate (hot rolled , rusting and flame cut edges) and he assumed it was just regular ole A36. After I got it home decided to look at it a bit closer and found some markings under the rust/dust and dirt. Turned out it was 4140, still have it as it wasn't sui...
by Rick
Tue Sep 03, 2019 7:40 pm
Forum: Live Steam
Topic: Piston Ring Port Sizing
Replies: 3
Views: 1167

Re: Piston Ring Post Sizing

Jim
Lima's standards do not have any info on port design.
by Rick
Tue Sep 03, 2019 9:31 am
Forum: Live Steam
Topic: Piston Ring Port Sizing
Replies: 3
Views: 1167

Re: Piston Ring Post Sizing

Jim
In two stroke engines the racers will go with exhaust port widths up to 60-70% of the bore.
I have a copy of Lima's standards, don't know if there is anything in it about this but I will look tonight.
by Rick
Sat Jul 20, 2019 8:39 pm
Forum: Live Steam
Topic: Anyone printing in wax?
Replies: 14
Views: 2532

Re: Anyone printing in wax?

I have bought a spool of thus but haven't had a chance to print. Looks very promising.
https://us.polymaker.com/product/polycast/
by Rick
Thu May 30, 2019 2:30 pm
Forum: Request For Services
Topic: Looking for a mentor and a place to use machines.
Replies: 7
Views: 6260

Re: Looking for a mentor and a place to use machines.

Harold

Your post reminded me of a saying I heard about musicians but it can be applied to any skilled endeavor.


"An amateur musician practices so they can get it right, a professional musician practices so they can't get it wrong"
by Rick
Fri May 10, 2019 3:57 pm
Forum: Live Steam
Topic: ASR Reading T-1 2100 Video Update
Replies: 3
Views: 1540

Re: ASR Reading T-1 2100 Video Update

Harold
The video worked fine for me
by Rick
Tue Apr 23, 2019 8:46 am
Forum: The Junk Drawer
Topic: Backing up computer files
Replies: 27
Views: 7645

Re: Backing up computer files

We were having trouble figuring out what to do with all these photos my wife and daughter and myself were taking with our phones. I went searching and found out about NAS (network attached server). They are not very expensive and have many features that are handy , at least for me. The one I use is ...
by Rick
Sat Apr 13, 2019 7:01 pm
Forum: General Discussion
Topic: Small Diameter Slitting Saw
Replies: 13
Views: 3494

Re: Small Diameter Slitting Saw

Thanks Harold
Yes forgot to mention relief. Some I have done worked without having to relieve others had the be relieved. Just have to try it and go from there.
by Rick
Fri Apr 12, 2019 8:09 pm
Forum: General Discussion
Topic: Small Diameter Slitting Saw
Replies: 13
Views: 3494

Re: Small Diameter Slitting Saw

Look at woodruff key cutters. McMaster has a 3/64 (0.047)thick 0.5 dia. Don't know if that is close enough for you application or not. I have taken woodruff key cutters and ground the thickness to what was required on a surface grinder. Clamp them in a v block in the vertical position and grind as r...
by Rick
Thu Mar 21, 2019 2:20 pm
Forum: Live Steam
Topic: Women in the hobby?
Replies: 57
Views: 9100

Re: Women in the hobby?

Here is a sign in our shop
Don't care if its manual or CNC its still just a tool for a skilled person to use.
by Rick
Mon Mar 18, 2019 10:46 am
Forum: Home Shop CNC
Topic: Thread Milling
Replies: 30
Views: 10028

Re: Thread Milling

I have done thread milling pretty much like Rich stated above. Done both with CAM (G-code) and by conversational programming on my Hurco which has a Helix feature. Only difference than what Rich does is I use a single profile cutter in place of a single point cutter like he does. https://www.mscdire...
by Rick
Sat Feb 23, 2019 1:24 pm
Forum: General Discussion
Topic: Parallel Keeper
Replies: 8
Views: 1785

Re: Parallel Keeper

Rubber bands around the jaws and parallels
They don't hold up the best but work at any jaw opening