Search found 477 matches

by oldvan
Thu Jan 28, 2016 4:01 pm
Forum: General Discussion
Topic: Lung powered engine
Replies: 10
Views: 1137

Re: Lung powered engine

Nice! Now to fit my van with a bigger version. :D
by oldvan
Sun Nov 01, 2015 6:15 pm
Forum: Milling Machines
Topic: Milling cutter observation
Replies: 12
Views: 2566

Re: Milling cutter observation

My lathe has little use for such cutters. :lol:
by oldvan
Wed Oct 21, 2015 5:13 pm
Forum: General Discussion
Topic: Can Cutting Painted Parts Rust Your Machines?
Replies: 11
Views: 1294

Re: Can Cutting Painted Parts Rust Your Machines?

PET is made by combining ethylene glycol and terephthalic acid under high temperature and low vacuum pressure to form a polymer chain. I saw quite a few references to terephthalic acid corroding steel and stainless in a quick google search. Yikes.

http://www.petresin.org/science_behindpet.asp
by oldvan
Wed Oct 14, 2015 3:26 am
Forum: Home Shop CNC
Topic: Lab-Volt mill conversion - (attn Marty)
Replies: 87
Views: 18347

Re: Lab-Volt mill conversion - (attn Marty)

This can get you started in the right direction:

https://en.wikipedia.org/wiki/Bleeder_resistor
by oldvan
Mon Oct 12, 2015 9:50 pm
Forum: Home Shop CNC
Topic: Lab-Volt mill conversion - (attn Marty)
Replies: 87
Views: 18347

Re: Lab-Volt mill conversion - (attn Marty)

Bleeder resistors across electrolytics can be cheap lifesavers.
by oldvan
Sat Oct 03, 2015 10:37 pm
Forum: The Junk Drawer
Topic: scanners
Replies: 9
Views: 1244

Re: scanners

Track down your local Amateur Radio club. There you will find members expert in the field.

73 de N2VAN
by oldvan
Tue Aug 11, 2015 3:45 pm
Forum: Site Software Questions and Answers
Topic: Language on the forum
Replies: 37
Views: 223895

Re: Language on the forum

This Monty Python song was relevant yesterday and today at work. Tomorrow will be better.
by oldvan
Mon Aug 10, 2015 1:01 am
Forum: General Discussion
Topic: Put Hot Chuck on Cold Arbor & it Still Fell Off
Replies: 31
Views: 2355

Re: Put Hot Chuck on Cold Arbor & it Still Fell Off

Old timer once told me to put some chalk dust on the mating tapers and give a good whack with a rubber mallet to seat them. Did it on one of my arbors and it never came off. I've never given it any thought as to why it worked, and I hesitate to suggest it because I do not fully understand it. Not s...
by oldvan
Tue Jul 21, 2015 10:55 pm
Forum: The Junk Drawer
Topic: 369th infantry regiment
Replies: 2
Views: 896

Re: 369th infantry regiment

by oldvan
Thu Jul 09, 2015 6:16 pm
Forum: Milling Machines
Topic: Tramming a milling machine vise
Replies: 3
Views: 1307

Re: Tramming a milling machine vise

Type carefully.

utube.com is a TypoSquatter on Youtube.com and has previously been reported to like to install malware on victim's computers.

https://www.mywot.com/en/scorecard/utube.com
by oldvan
Thu Jul 09, 2015 5:23 pm
Forum: 3-in-1 Metalworking Machines
Topic: New owner of Grizzly G4015Z
Replies: 4
Views: 4711

Re: New owner of Grizzly G4015Z

I've never owned a round-column machine like that, but I don't see any problem with modifying a $150.00 tool to improve its usefulness. The fix shown in the video looks sturdy. I watched the video and saw the man holding a drill bit with rubber-faced gloves. Hopefully he gets away with 10 fingers an...