Search found 1196 matches

by John Hasler
Tue Jun 25, 2019 2:34 pm
Forum: Milling Machines
Topic: Bare Metal Protection
Replies: 16
Views: 1081

Re: Bare Metal Protection

Not all LED drivers contain electrolytic capacitors.
by John Hasler
Tue Jun 25, 2019 12:40 am
Forum: Lathes
Topic: Threading
Replies: 13
Views: 202

Re: Threading

After assembling and clamping your block drill and tap a hole in the center of the bottom. Then screw your bolt into that hole and pour in the lead.
by John Hasler
Mon Jun 24, 2019 12:07 pm
Forum: Lathes
Topic: Threading
Replies: 13
Views: 202

Re: Threading

I wrote: My non-damaging hammer has one lead face and one wooden face (and a wood handle). Can't beat it. Steve writes: Yes, but you can beat other things with it. I hadn't thought about replaceable lead faces. It would be simple enough to make a mold for it. I inherited a hammer with two wooden fac...
by John Hasler
Mon Jun 24, 2019 10:07 am
Forum: Lathes
Topic: Threading
Replies: 13
Views: 202

Re: Threading

Harold writes: You might consider making a head that will accept Nupla Flex hammer head inserts. That will make a wonderful hammer that has the ability to use heads of various types of construction, yielding a non-damaging hammer with heads that are quickly replaced when needed. My non-damaging hamm...
by John Hasler
Sat Jun 22, 2019 11:01 am
Forum: General Discussion
Topic: Water cooling a 12HP air cooled motor
Replies: 5
Views: 194

Re: Water cooling a 12HP air cooled motor

A 65 K temperature difference will drive 190 watts through 10 cm of that shaft (assuming carbon steel: most stainless alloys have lower conductivity). That doesn't account for the temperature drop from the windings to the shaft and the (very poor) coupling from the smooth, round shaft surface to the...
by John Hasler
Thu Jun 20, 2019 4:44 pm
Forum: General Discussion
Topic: Fed up With Crummy Rotary Tools
Replies: 18
Views: 529

Re: Fed up With Crummy Rotary Tools

I wouldn't buy a Proxxon. In the latest Micro Mark catalog, their Proxxon 16" scroll saw is selling for $189.99, reduced from $237.45. If you look closely, it is identical to a Harbor Freight or Wen scroll saw that sells for less than $100. It does come with a flexible shaft attachment. Proxxon too...
by John Hasler
Thu Jun 20, 2019 9:56 am
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 65
Views: 1824

Re: Newbie - Buying first metal lathe

Harold writes: Their idea of a pedestal grinder was, literally, a small grinder mounted on a post in the shop. I recently picked up a pedestal-mounted Wissota for $20 at a yard sale. Pedestal is still too short, but it's already better than bending over to use a bench grinder. Much quieter and smoot...
by John Hasler
Thu Jun 20, 2019 9:49 am
Forum: General Discussion
Topic: Fed up With Crummy Rotary Tools
Replies: 18
Views: 529

Re: Fed up With Crummy Rotary Tools

SteveHGraham wrote:
Thu Jun 20, 2019 9:16 am
I noticed that people who bought Proxxons complained about the electronics failing.
Which model? I bought the IBS/E: the cheaper FBS 115E looks "entry level" (i.e. cheap) and the 12V units are right out.
by John Hasler
Wed Jun 19, 2019 9:58 pm
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 65
Views: 1824

Re: Newbie - Buying first metal lathe

I had watched only the tail end. I went to Youtube and watched the whole thing. He talks about back rake and grinds it in, but it looks like his (odd looking to me) chipbreaker eliminates it.

I've never gotten around to building a rest for my bench grinder.
by John Hasler
Wed Jun 19, 2019 9:28 pm
Forum: General Discussion
Topic: Fed up With Crummy Rotary Tools
Replies: 18
Views: 529

Re: Fed up With Crummy Rotary Tools

SteveHGraham writes:
> I figured I would end up with a Proxxon. I already have one, and it seems better than a Dremel,
> but I found out there are certain parts that seem to die way too often.

I recently replaced my Dremel with a Proxxon. Huge improvement, but which part should I expect to fail?
by John Hasler
Wed Jun 19, 2019 7:39 am
Forum: Lathes
Topic: Newbie - Buying first metal lathe
Replies: 65
Views: 1824

Re: Newbie - Buying first metal lathe

No back rake visible in the video.

I use a die grinder to add a chipbreaker.
by John Hasler
Tue Jun 18, 2019 1:29 pm
Forum: Live Steam
Topic: weird RR machine
Replies: 13
Views: 783

Re: weird RR machine

It's function is clearly to transport and power the apparatus mounted on the right end. No idea what that is, though.