Search found 98 matches

by Wolfgang
Sun Aug 11, 2019 4:46 pm
Forum: Upcoming Events
Topic: Southern Ontario Model Engineering Conference
Replies: 0
Views: 914

Southern Ontario Model Engineering Conference

This annual gettogether of model engineers is held in Hamilton, Ontario, Canada, on Sunday September 15., 2019, 10 AM to 4 PM. All model engineers are invited. There will be free food and free non-alcoholic drinks, salads, etc. There will be display tables under a 20 x 40 foot canopy close to the mo...
by Wolfgang
Sat Jun 08, 2019 4:59 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

The gist I got was he wanted to see if someone with the same model lathe was getting the same runout he was getting on his based on how he measured his. Indeed, that's what I wanted to know. Next step will be to measure the TIR of the spindle nose collet taper itself, and then make a decision as to...
by Wolfgang
Fri Jun 07, 2019 8:18 pm
Forum: Lathes
Topic: QC toolpost for Atlas 618
Replies: 19
Views: 3278

Re: QC toolpost for Atlas 618

A friend just picked up a 6" Atlas 618 lathe. I was trying to steer him to a 9" South Bend, but at the price he got this one, I can't fault him. He's going to use it occasionally to turn out small parts, and this will fit that bill. I was talking to him about the lantern toolpost. He's seen my Alor...
by Wolfgang
Thu Jun 06, 2019 7:25 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

Wolfgang, I decided to check the runout on the collet sizes you mentioned. I didn't know gage pins were that inexpensive by the piece from McMaster. so I ordered two sizes, I have some precision ground .25 dowel pins so I used those instead of ordering one. . Runout was checked with the lathe cold ...
by Wolfgang
Tue Jun 04, 2019 5:49 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

If you have a moment I'd appreciate it very much if you were to test your spindle with two standard sized collets, say 1/2", or 3/8", or 1/4" using a dowel pin or a short piece of ground rod such as drill rod, You can't determine runout in tenths when the piece you use for testing may not be round....
by Wolfgang
Mon Jun 03, 2019 7:46 pm
Forum: Milling Machines
Topic: Gear Cutting
Replies: 9
Views: 2659

Re: Gear Cutting

FWIW, I make most of my gears out of Delrin. They hold up great, can be cut faster and the gear cutters stay sharp longer. I'm sure there are places where you really need steel, but maybe fewer than people think. Agreed, plastic gears, and especially cloth reinforced phenolic gears are much stronge...
by Wolfgang
Mon Jun 03, 2019 7:32 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

Wolfgang, I have two sets of L20 collets that came with my V10P and Maximat 7, both sets are Schaublin that American Edelstaal offered as an accessory for the Emco lathes. The Maximat 7's were in near mint condition in a fitted Edelstaal wood box, unfortunately the V10P set came loose in a cardboar...
by Wolfgang
Sat Jun 01, 2019 11:20 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

I've checked the spindle for play, and there is none. In my original post I stated that the spindle on my friend's lathe turned smoothly and slick; what I did not explicitly state is that I compared it to my spindle which feels rough when I turn it by hand. Other than that the lathe is tight and acc...
by Wolfgang
Sat Jun 01, 2019 9:21 am
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

I would take the old bearings out before I did anything....assuming you can afford the down-time. That is indeed my game plan. Don't want to lay out $500+ without knowing for sure the problem. It is approaching summer time and the machinery can have a rest. Just a thought here, I have done a lot of...
by Wolfgang
Fri May 31, 2019 5:08 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Re: Spindle bearing replacement

What is the specified runout for the P5 bearings? What runout do you actually need? The run-out of the inner races is .00015" and .0002" respectively, for P5 tolerance class. For P6 tolerance class the run-out is twice as much ie. .0003" and .0004" which is close to half a thou. (I thought it was m...
by Wolfgang
Fri May 31, 2019 2:38 pm
Forum: Lathes
Topic: Spindle bearing replacement
Replies: 31
Views: 6096

Spindle bearing replacement

Mine is a two-lathe shop, an Emco-Maier V10P and a Bergeron watchmaker's lathe.:-)) The V10P needs new bearings; I've been putting it off for years but recently I turned a friend's identical lathe by hand and was amazed by how smooth and slick it turned: Build was the same year and his was used prof...
by Wolfgang
Sat Apr 27, 2019 11:44 am
Forum: Live Steam
Topic: Are dynamos too noisy?
Replies: 25
Views: 5346

Re: Are dynamos too noisy?

Alternators/generators of necessity have soft steel and laminations in order to provide a suitable magnetic circuit. And these will rust very easily. Nickel plating would probably work but we used epoxy coating which provided very good corrosion protection in the alternator section. Everything else ...