Search found 423 matches

by jcfx
Tue Jul 09, 2019 7:21 pm
Forum: General Discussion
Topic: RF-45 oil seal replacement
Replies: 4
Views: 259

Re: RF-45 oil seal replacement

Thanks Inspector, it's a informative link, even though he doesn't get to that oil seal, luckily his Flicker images are still up.It's interesting how my experience with a new, never run RF-45 clone is so similar in regards to the swarf inside the mill head, and a missing bearing cover, I suspect a go...
by jcfx
Mon Jul 08, 2019 6:33 pm
Forum: General Discussion
Topic: RF-45 oil seal replacement
Replies: 4
Views: 259

Re: RF-45 oil seal replacement

Do you have an idea who the member is, assuming he's a member of this forum ?
It would make searching for the thread easier.
by jcfx
Sat Jul 06, 2019 9:38 pm
Forum: General Discussion
Topic: RF-45 oil seal replacement
Replies: 4
Views: 259

RF-45 oil seal replacement

Any owners of dovetail column RF-45 mills ? I buggered up one of the two spindle shaft oil seals so I figured I would replace both but these shaft seals are normally pressed in from the flat face side, the seals in the mill are in a end cap so the flat face is facing down, I'm hesitant in removing t...
by jcfx
Fri Jul 05, 2019 8:56 pm
Forum: The Junk Drawer
Topic: Optical contact bonding
Replies: 0
Views: 150

Optical contact bonding

Taking a break from work ( i.e. goofing off ) I came across a video about the science of flatness, not a very good one but in the segment about gauge blocks and molecular bonding it did mention something about optical contact bonding, decided to look into it further and came across this video from a...
by jcfx
Thu Jul 04, 2019 7:51 pm
Forum: Gunsmithing
Topic: gunsmithing tools
Replies: 6
Views: 273

Re: gunsmithing tools

There is quite a bit of gun related stuff on eBay , tools, mainly pin punches, holsters, and surprisingly Airsoft BB guns ! I don't pretend to know what tools are needed for gun smithing ( other than a lathe and mill ). Unless eBay has express rules against gunsmithing tools, I don't see why you sho...
by jcfx
Wed Jul 03, 2019 7:54 pm
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 80
Views: 4381

Re: Newbie - Buying first metal lathe

SteveM wrote:
Wed Jul 03, 2019 6:47 pm
Much rarer than an independent jaw 4-jaw, but nice for holding square things.
I don't find them rare at all, they're just as ubiquitous as independent 4 jaws.
by jcfx
Wed Jul 03, 2019 4:44 pm
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 80
Views: 4381

Re: Newbie - Buying first metal lathe

A 4-jaw allows you to dial a part in, and once you get the hang of it, it's pretty quick, but if you have to do a bunch of parts the same size, collets win hands down. Steve Just wanted to mention/ clarify that there are two flavors of four jaw chucks, self centering and independent which leads to ...
by jcfx
Tue Jul 02, 2019 7:37 pm
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 80
Views: 4381

Re: Newbie - Buying first metal lathe

The Grizzly machine and the PM machine most likely came from the same factory with different QA and paint before being crated, take a look at the manuals for both. I was looking for a mill and went with PM, it was less money and had power down feed ( didn't hurt that it was PA to NY was a short deli...
by jcfx
Tue Jul 02, 2019 7:19 pm
Forum: General Discussion
Topic: Horrors of Buffer Safety
Replies: 40
Views: 1053

Re: Horrors of Buffer Safety

Second what Frank Ford says.
Mine is a home brew just a 1/2 horse 1725 motor bolted to a plywood board that I can clamp to any
available flat surface.
FWIW, if you're leaning into the buffer wheel hard enough to tip the buffer and the stand then you need to reassess your buffing -fu.
by jcfx
Sun Jun 30, 2019 4:42 pm
Forum: Live Steam
Topic: No ballad singers...
Replies: 3
Views: 399

Re: No ballad singers...

Great sign, I had to look up what a Rag & Bone man was -https://en.wikipedia.org/wiki/Rag-and-bone_man
by jcfx
Fri Jun 28, 2019 4:57 pm
Forum: General Discussion
Topic: Reaming Cast Steel Fittings without a Mill
Replies: 27
Views: 1027

Re: Reaming Cast Steel Fittings without a Mill

How accurate does the hole have to be ?
Not an elegant solution but a drum sander in drill press would probably take down the .8mm
that you need.
I was going suggest a cylinder ridge reamer but they don't seem to come any smaller than 2" dia.
by jcfx
Thu Jun 27, 2019 5:57 pm
Forum: General Discussion
Topic: Optimum lathes and mills
Replies: 4
Views: 483

Re: Optimum lathes and mills

I have a RF-45 clone, probably similar to your ZF-45, I haven't put it under power yet, and as Dave said they're generally OK machines based on other forum postings. Mine is on the home stretch ( on a stand, trying to remember how to reassemble the mill, replacing factory buggered bearings, etc ) I ...