Search found 2768 matches

by ctwo
Tue Jan 19, 2021 1:03 am
Forum: General Discussion
Topic: Why do I need a Variac?
Replies: 7
Views: 117

Why do I need a Variac?

For a long time I've wanted a variac, but I'm not sure why as I have survived decades without one. Do any of you have a practical use for one? I know they are good for powering up old tube equipment. I do have a Collins R-388/URR receiver and maybe I will make a hot knife some day. I'm sure it's not...
by ctwo
Tue Jan 19, 2021 12:51 am
Forum: General Discussion
Topic: Should I care - 6.5mm instead of 1/4" DA collet
Replies: 8
Views: 379

Re: Should I care - 6.5mm instead of 1/4" DA collet

It wasn't really the kind of outcome that makes me feel totally warm and fuzzy inside... I think I made a technical error in how I presented what these collets are. I think they are properly called DA180 collets. I am sure that at clears up the confusion. Apparently, ER collets are the most widely u...
by ctwo
Tue Jan 12, 2021 5:07 pm
Forum: General Discussion
Topic: Should I care - 6.5mm instead of 1/4" DA collet
Replies: 8
Views: 379

Re: Should I care - 6.5mm instead of 1/4" DA collet

Well, this is no good. I contacted the seller and requested a partial refund. They refunded me the entire purchase and told me to keep them. Now I have to fix this.
by ctwo
Mon Jan 11, 2021 8:53 pm
Forum: General Discussion
Topic: Should I care - 6.5mm instead of 1/4" DA collet
Replies: 8
Views: 379

Re: Should I care - 6.5mm instead of 1/4" DA collet

You never what what to go oversize? I am actually now thinking the larger sized collets, like a 19.25mm collet in place of a 3/4", would fair better than a 6.5mm collet in place of a 1/4", because there are more slits and fingers to flex and hold. Or I'm overthinking it. It's just that 1/4" and 3/8"...
by ctwo
Sun Jan 10, 2021 11:35 pm
Forum: General Discussion
Topic: Should I care - 6.5mm instead of 1/4" DA collet
Replies: 8
Views: 379

Re: Should I care - 6.5mm instead of 1/4" DA collet

The Kennametal catalog says this system max collapse is 0.005". 6.5mm is actually 0.006" larger and that is what is measures. This is an Erickson branded collet. Parlec specifies 0.016" max collapse. It seems to hold and has typical runout that I get, 2-5 tenths. I was just worried about it spinning...
by ctwo
Sun Jan 10, 2021 7:27 pm
Forum: General Discussion
Topic: Should I care - 6.5mm instead of 1/4" DA collet
Replies: 8
Views: 379

Should I care - 6.5mm instead of 1/4" DA collet

I bought a nice used 180 DA collet set 1/4 to 3/4 in 32nds. The 1/4 is actually 6.5mm. It might work but obviously loose.
by ctwo
Fri Jan 08, 2021 1:52 am
Forum: Casting & Foundry Work
Topic: Lead Ball Mold
Replies: 5
Views: 421

Re: Lead Ball Mold

Thanks All. This was trying to be like a Lee buckshot mold. I noticed they do have grooves so I'll give that a try. I also think that using a tin can allowed the lead to cool too much on the way out, so something heavier may also help.
by ctwo
Thu Jan 07, 2021 12:19 am
Forum: Casting & Foundry Work
Topic: Lead Ball Mold
Replies: 5
Views: 421

Lead Ball Mold

Hey, this seems like a good first dip... Once I thought I'd get into skeet shooting, then they banned all my clay birds, then they banned lead shot, so now I figure I will convert all of my #7-1/2 bird to #3 buck. I'll make the other side #000 or something interesting. These would be 1/4" balls and ...
by ctwo
Sat Nov 14, 2020 11:09 pm
Forum: The Junk Drawer
Topic: Craftsman Pressure Washer
Replies: 2
Views: 1327

Craftsman Pressure Washer

Neighbor could not get pressure so I helped him take it apart and everything we could get apart looked fine. We could not get the pressure adjustment apart though - that's the part with a small bolt sicking out and a nut that presses a spring onto some round assembly that is pinned into the pump cas...
by ctwo
Sat Nov 14, 2020 10:54 pm
Forum: Milling Machines
Topic: test
Replies: 7
Views: 2305

Re: test

Breakfast! It's what's for dinner...

"The following words in your search query were ignored because they are too common words: tap.
You must specify at least one word to search for. Each word must consist of at least 4 characters and must not contain more than 84 characters excluding wildcards."
by ctwo
Wed Nov 04, 2020 9:26 pm
Forum: General Discussion
Topic: To Farm Out to China or Not
Replies: 16
Views: 6024

Re: To Farm Out to China or Not

Is there actually still a market for custom Chevy engine brackets? I thought about it. I sourced the material for $600, then figured $400 for tool bits, and two weeks of frustration to get a sore back. Then I realized, I can make my back sore just by cleaning up the shop. Hope he works out for you, ...
by ctwo
Fri Sep 25, 2020 10:19 pm
Forum: General Discussion
Topic: Cute Mystery Indexer
Replies: 7
Views: 3445

Re: Cute Mystery Indexer

I don't see anything lost. Some other images out there of the Burke #4 indexing head look exactly the same to me. There is additionally a similar dividing head.

Here a couple more images, a bit more than half-way down.

https://www.hobby-machinist.com/threads/burke-4.4990/