Search found 1540 matches

by John Hasler
Sat Oct 24, 2020 2:45 pm
Forum: Milling Machines
Topic: opinion; old German milling machine
Replies: 33
Views: 1094

Re: opinion; old German milling machine

pete writes:
>Here in Canada there's no actual duty on machine tools or there accessories new or used.

I think that's only for stuff coming from the US, because of NAFTA.
by John Hasler
Sat Oct 24, 2020 12:04 pm
Forum: Live Steam
Topic: Sliding shafts on trucks
Replies: 13
Views: 405

Re: Sliding shafts on trucks

So, also considering making a square shaft, such as found in the Shay? Any disadvantages?? Glenn I have old farm machinery with square shaft couplers. I don't recommend it. It's only good for low speeds, binds up easily, has a lot of play, is noisy, and wears quickly. Can you use a splined shaft sa...
by John Hasler
Sat Oct 24, 2020 8:12 am
Forum: General Discussion
Topic: 5x6 Bandsaw Blades
Replies: 15
Views: 486

Re: 5x6 Bandsaw Blades

> Any more effective suggestions other than buying a tension gauge? Two small C clamps and calipers works for me. You want 20,000 psi. Young's modulus for steel is 30,000,000 so you need .00067 elongation for 20,0000 psi. Set the calipers to 5", clamp them to the relaxed blade (but not slack) , and ...
by John Hasler
Thu Oct 22, 2020 11:21 am
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 40
Views: 1317

Re: Electric drive motor specs

Glenn writes:
As I’ve been thinking, how could I build a right angle gear set up to transfer power
from a single larger motor and one for and aft line shaft down to two rotating trucks.

ATV differentials and drive shafts?
by John Hasler
Sat Oct 17, 2020 5:23 pm
Forum: Milling Machines
Topic: opinion; old German milling machine
Replies: 33
Views: 1094

Re: opinion; old German milling machine

liveaboard writes:
> OH asks; "What do you want to make with that huge expensive machine??"
> I don't even know; but something always turns up.

Tools, fixtures, improvements and enhacements for that machine (and others). Surely there are things your lathe needs that require a mill.
by John Hasler
Sat Oct 17, 2020 1:06 pm
Forum: Lathes
Topic: Question about lathe levelling
Replies: 14
Views: 703

Re: Question about lathe levelling

atunguyd writes: > Where this really battles is time - Any movement and I pretty much need to leave it overnight > to stop that tiny swaying motion. Suspend the bob so that it is partially submerged in a pan full of clear oil or water. That will quickly damp the oscillations without affecting the st...
by John Hasler
Fri Oct 16, 2020 8:32 pm
Forum: General Discussion
Topic: Bearing issue?
Replies: 22
Views: 681

Re: Bearing issue?

Do you see that with everything (topslide, compound, and cross-slide) locked down?
by John Hasler
Thu Oct 15, 2020 8:14 am
Forum: Milling Machines
Topic: opinion; old German milling machine
Replies: 33
Views: 1094

Re: opinion; old German milling machine

That's a really interesting design with the shaper-like Y axis.
by John Hasler
Mon Oct 12, 2020 2:33 pm
Forum: General Discussion
Topic: DRO Functions
Replies: 9
Views: 531

Re: DRO Functions

Where can I find that tool load equation?
by John Hasler
Mon Oct 12, 2020 7:08 am
Forum: General Discussion
Topic: DRO Functions
Replies: 9
Views: 531

Re: DRO Functions

If you mean chip load, no. Tool parameters, speed, and feed determine it.


https://cimquest-inc.com/what-is-chip-load/
by John Hasler
Sat Oct 10, 2020 6:58 am
Forum: General Discussion
Topic: Way oil
Replies: 12
Views: 1181

Re: Way oil

Mr Ron wrote:
Fri Oct 09, 2020 5:03 pm
Thank you all for your input. Now another question : Can way oil be used for bearings as in headstock bearings? Would using the wrong lubricant damage bearings?
Using oil with too much viscosity can cause bearings to overheat.
by John Hasler
Thu Oct 08, 2020 8:27 pm
Forum: Riding Scale Railroading
Topic: Electric drive motor specs
Replies: 40
Views: 1317

Re: Electric drive motor specs

What are the dimensions? Comparing them to motors of similar size and known ratings can get you a rough estimate of the power. You can also measure the top speed, the armature resistance, and the stall torque.