On 12/5/24 05:49, gene heskett wrote:
And this was supposed to go PM to Dave, t-bird is new version, screwed up.
On 10/30/24 09:24, Dave Engvall wrote:
All good responses, many thanks! Still lots of outside work going on
in prep for winter. Nights are freezing +- a few degrees. Will be back
for more help if and when I need it. ;-) Rather certain I’ll need
it. :-(. Thanks to all who replied and even to those who considered
replying.
Dave
Haven't had an email from you in months, how are you doing these days?
One of the things I've been playing with are the new "closed loop
stepper/servos" both in the garage, and in 3d printers here in the
house. They run much cooler, don't skip steps and with the newer drivers
from Hanpose, run on 4x the former voltage so are considerably faster.
And they have a failure output that can stop LCNC in a millisecond. I've
replaced both motors on the Sheldon, 2 of the 4 on the 6040 gantry mill,
1 for an A axis on the GO704 but have the other 3 for the GO704 on site
waiting basically on some warmer weather and a round tuit. And 2 in my
fav 3d printer, a highly modified Ender 5 Plus that now runs about 8x
faster than OOTB 3 years ago. I've 3 more printers in various stages of
being rebuilt using these new motors. If I don't fall over first.
They stand up to investigation. No ticklish servo tuning, they simply do
as they are told. The motor has its own encoder that's wired only to the
driver. The error determines the motor currant and that allows them to
run lots cooler. At the same time, if the error goes up, the driver will
hit them with every amp the psu has, skipped steps are history in that
they don't happen. Cost over regular steppers ranges between $40 and $80
per axis. They Just Work.
Stay warm and well.
Cheers, Gene Heskett, CET.
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
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