On 4/12/24 01:18, Chris Albertson wrote:
On Apr 11, 2024, at 11:49 AM, John Dammeyer wrote:
Where I'm still having trouble is understanding the compromises.
Using G02 I,J motion it's possible to specify a feed rate and spindle RPM that
remains constant regardless of the spiral diameter.
Here's the G-Code he used for that photo. You can see he's doing 1mm passes
turning the rotary table 3 turns. His mechanics are such that it cuts air
at the start and at the end of the spiral.
The question I asked him which relates back to my own system is what does
F300 indicate? X at 300
On 4/12/24 18:45, John Dammeyer wrote:
Hi Gene,
I should knock john D's problem up in openscad, might yet if he ever
gives us the whole spec so I know what he's trying to do. To me it only
needs 3 axis's as long as one is rotary. Those fast A & B's I have built
have been handier than sliced
On 4/12/24 19:13, Gregg Eshelman via Emc-users wrote:
Being of 1971 vintage, I had the good fortune to have as my 2nd grade teacher
Valera Vargason. She started teaching in a one room schoolhouse in 1939, in
Brookings, SD. She taught classes of 40 or more students across the full range
of
> -Original Message-
> From: gene heskett [mailto:ghesk...@shentel.net]
> Sent: April 12, 2024 7:40 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Carving a spiral
> I see now. That looks like a scroll for a 3 jawed chuck, a much tighter
> twist than I had envisioned
Good morning,
I am sitting here at 70 wondering how people get along without 5 axis. A
shop here in Wichita sent me 500 parts to run. He was running them on a 4
axis mori seiki. The runtime was a little over an hour. He wanted to clear
machine time. He furnished programs, material, fixtures,
> All very true and well for someone equipt with the income and mental gear to
> use that chain of tools profitably. But I'm an old Iowa farm kid, we made
> what we needed. The "store" was 15 miles of horse drawn wagon over a mud
> road the county graded about 2x a year and all of a days
On 4/12/24 11:30, Chris Albertson wrote:
All very true and well for someone equipt with the income and mental gear to use that chain of tools
profitably. But I'm an old Iowa farm kid, we made what we needed. The "store" was 15 miles
of horse drawn wagon over a mud road the county graded
Being of 1971 vintage, I had the good fortune to have as my 2nd grade teacher
Valera Vargason. She started teaching in a one room schoolhouse in 1939, in
Brookings, SD. She taught classes of 40 or more students across the full range
of ages from 5 to 18 while just 19 years old.
Teaching a
