The Home Machinist!

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.

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...

> 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 ...

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?

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.

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...

Do you see that with everything (topslide, compound, and cross-slide) locked down?

That's a really interesting design with the shaper-like Y axis.

Where can I find that tool load equation?

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


https://cimquest-inc.com/what-is-chip-load/

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.

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.