Search found 4716 matches

by BadDog
Mon Jun 17, 2019 10:41 am
Forum: General Discussion
Topic: Turning plastic on a metal lathe
Replies: 16
Views: 320

Re: Turning plastic on a metal lathe

I've turned PVC many times without issue, but that's at manual machine speeds. And my lathe ways stay all but dripping with oil, so that may contribute as well. When I turn wood, cast iron, or rusty/scaly metal, I drape the ways and cross slide with a leftover length of thick/rubbery/soft tool box d...
by BadDog
Sat Jun 15, 2019 11:57 pm
Forum: General Discussion
Topic: Turning plastic on a metal lathe
Replies: 16
Views: 320

Re: Turning plastic on a metal lathe

Plastics are very often turned on metal lathes with no adverse effects. I would guess there are probably some plastics that may off-gas (room temp or turning heat?) corrosive fumes, but these won't be the common things like UHMWPE and such. I've turned quite a bit of it, most often for making plane ...
by BadDog
Mon Jun 03, 2019 8:03 pm
Forum: General Discussion
Topic: Preparing Machines for Moving
Replies: 27
Views: 947

Re: Preparing Machines for Moving

Yes, flip the head etc. I wouldn't take the handles off because that will leave even more fragile shafts exposed. And as stated, to fit or balance as desired, they may need shift things around. And also support asking the person in charge of the move. With the help of a friend who deals with machine...
by BadDog
Mon Jun 03, 2019 7:50 pm
Forum: General Discussion
Topic: marking tools
Replies: 15
Views: 689

Re: marking tools

Buy HF tools and no-one will steal them. Or, buy a HF tool box and put good tools in it. Or, just realize that tools will walk and buy extra. JMHO. Remember. what belongs to everyone, belongs to no-one. --earlgo When I was into rock crawling buggies, this was the way I went. In that scenario, when ...
by BadDog
Fri May 31, 2019 4:10 pm
Forum: General Discussion
Topic: Blast cabinet liner
Replies: 13
Views: 519

Re: Blast cabinet liner

Key words. How one uses their blasting equipment makes a huge difference in requirements. Exactly. RSG: The back wall cover would be a good idea, but my cabinet has an open grate on the bottom to place parts on, and an inverted pyramid type funnel below that to return the blast media to the hopper....
by BadDog
Thu May 30, 2019 8:30 pm
Forum: General Discussion
Topic: Blast cabinet liner
Replies: 13
Views: 519

Re: Blast cabinet liner

Depends on the nozzle size, and related things (media specific, min pressure, desired finish, etc). But within the scope of achieving a particular goal, mainly nozzle size. They make mini-blasters (soda mainly I think) about like an airbrush, and they don't need much air at all. But for real world c...
by BadDog
Thu May 30, 2019 4:29 pm
Forum: General Discussion
Topic: Blast cabinet liner
Replies: 13
Views: 519

Re: Blast cabinet liner

Because it's such a mess (and takes up a lot of space), I want to store it outside under my shop awning. Liberates the space, and makes it MUCH more convenient to use without having to first remove from shop, get it all setup, and run it outside to allow the exhaust fines to disperse across the yard...
by BadDog
Thu May 30, 2019 4:07 pm
Forum: General Discussion
Topic: Blast cabinet liner
Replies: 13
Views: 519

Re: Blast cabinet liner

That's what I was thinking, but sometimes I overthink things. :oops:

I was thinking 1/16 would be a good minimum thickness, but have nothing to base that on but gut feeling.
by BadDog
Thu May 30, 2019 3:28 pm
Forum: Milling Machines
Topic: Glass Bead Blasting Old Mill Vice
Replies: 18
Views: 846

Re: Glass Bead Blasting Old Mill Vice

To keep from taking this further OT, I branched out the blast cabinet liner discussion to this new thread.
by BadDog
Thu May 30, 2019 3:25 pm
Forum: General Discussion
Topic: Blast cabinet liner
Replies: 13
Views: 519

Re: Blast cabinet liner

Thanks for the references. A brief look at each indicates that it may be price prohibitive. I'll investigate more when I have time to focus on it, and maybe see if I can find a local granite blaster so I can get just the quantity I need. I also need to get my exact dimensions so I can get a better i...
by BadDog
Thu May 30, 2019 3:23 pm
Forum: General Discussion
Topic: Blast cabinet liner
Replies: 13
Views: 519

Blast cabinet liner

This topic started on another thread that I didn't want to take it further off topic, so I'm taking it here to continue. Original thread for reference Most relevant commentary from that thread. Yeah, soft materials are a great barrier for blasting. Fact is, it's soft rubber that is used in masking t...
by BadDog
Wed May 29, 2019 5:50 pm
Forum: Lathes
Topic: Taking Chinese 3 Jaw Metal Lathe chuck apart for cleaning
Replies: 7
Views: 369

Re: Taking Chinese 3 Jaw Metal Lathe chuck apart for cleaning

Yeah, the worst is boring cast iron or cast steel where the back of the bore drops right in on the scroll. What a mess... I've tried pugging, but that usually just causes pile-up and recut problems for me.