Search found 971 matches

by John Hasler
Sat Dec 08, 2018 10:55 pm
Forum: General Discussion
Topic: The Long Taper
Replies: 6
Views: 170

Re: The Long Taper

They needed to make the drawtube captive on the back end of the spindle so the unscrewing it would drive the chuck off the taper.
by John Hasler
Sat Dec 08, 2018 8:05 pm
Forum: General Discussion
Topic: Cleaning Solvent.
Replies: 8
Views: 136

Re: Cleaning Solvent.

Henkel says that primer does more than just speed curing and that it is required on some materials including stainless steel. https://www.google.com/url?q=http://www.loctite.com.au/aue/content_data/354580_7128_Do_It_Right_Guide_v5_Approved.pdf&sa=U&ved=0ahUKEwiAj6avxJHfAhWG24MKHUHNCJkQFggUMAA&usg=AO...
by John Hasler
Sat Dec 08, 2018 5:25 pm
Forum: General Discussion
Topic: Cleaning Solvent.
Replies: 8
Views: 136

Re: Cleaning Solvent.

Tom1948 wrote:
Sat Dec 08, 2018 5:04 pm
Loctite makes a primer. Kind of pricey also but speeds up curing time especially in cooler weather.
You should still clean first.
by John Hasler
Sat Dec 08, 2018 4:46 pm
Forum: General Discussion
Topic: Cleaning Solvent.
Replies: 8
Views: 136

Re: Cleaning Solvent.

I use either starting fluid or acetone.
by John Hasler
Sat Dec 08, 2018 12:26 pm
Forum: General Discussion
Topic: The Long Taper
Replies: 6
Views: 170

Re: The Long Taper

tornitore45 wrote:
Sat Dec 08, 2018 11:10 am
It is my experiences that long taper will not keep under radial forces without a drawbar. Any machine that must pass stock trough a chuck can't really use a taper drive.
It could with a tubular drawbar. I know of no machine that uses one, though.
by John Hasler
Fri Dec 07, 2018 4:42 pm
Forum: Milling Machines
Topic: all-thread studs for clamping
Replies: 18
Views: 1282

Re: all-thread studs for clamping

Unfortunately Fastenal now only sells business to business. Hmmm. I wonder if that's true in all areas? I haven't stopped by the local Fastenal in a while, but they've offered mixed service in the past, from not selling small quantities to over pricing, even charging shipping on items forwarded wit...
by John Hasler
Tue Dec 04, 2018 11:04 pm
Forum: General Discussion
Topic: Good practice question
Replies: 16
Views: 561

Re: Good practice questio

Like Pete said, on my small 7” Dalton, (OXA QCTP and 1/4” bits) diameter size makes a big difference how far out I can machine along the axis without support. Can’t machine 3/4” round stock at 2” from chuck without the tailstock support, for example. With 1/2” to 3/4” diameter bronze round stock it...
by John Hasler
Tue Dec 04, 2018 7:27 am
Forum: Live Steam
Topic: grey iron
Replies: 40
Views: 1443

Re: grey iron

Grey iron has better damping and lower friction than ductile iron and so may be better for purposes such as lathe beds.
by John Hasler
Fri Nov 30, 2018 12:35 pm
Forum: Live Steam
Topic: HSS vs Titanium vs. Cobalt drills.
Replies: 25
Views: 9778

Re: HSS vs Titanium vs. Cobalt drills.

tornitore45 wrote:
Fri Nov 30, 2018 9:46 am
Just looked up the price for Kerosene. $8.74 one gallon at Walmart. Typically $22 for WD40
Sure. Kerosene doen't come in a convenient spray can, though.
by John Hasler
Fri Nov 30, 2018 8:42 am
Forum: Live Steam
Topic: HSS vs Titanium vs. Cobalt drills.
Replies: 25
Views: 9778

Re: HSS vs Titanium vs. Cobalt drills.

Fred_V wrote:
Fri Nov 30, 2018 8:14 am
Kerosine for alum.
Same as WD40, for this purpose.
by John Hasler
Wed Nov 28, 2018 11:02 pm
Forum: Live Steam
Topic: Using a steam indicator
Replies: 40
Views: 3901

Re: Using a steam indicator

Tubing that completely full of liquid right up into the transducer will transmit pressure changes very accurately and quickly. Trouble comes when there are bubbles in the tubing. Then all the fluid up to the location of the bubble has to move as the bubble expands and compresses with pressure changes.
by John Hasler
Wed Nov 28, 2018 5:04 pm
Forum: Milling Machines
Topic: Shop smith 10er verital mill conversion
Replies: 11
Views: 513

Re: Shop smith 10er verital mill conversion

Before I got a lathe I lathed things on my mill (converted Avey, above). Kind of like an upside-down vertical lathe.