I think he's also on ebay as thecustomcrafter
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On Monday, February 19th, 2024 at 9:22 AM, WAM <ajawam2@...> wrote:
Great find. Thank you for sharing that.
On 2/19/2024 9:13 AM, Jay Fougere wrote:
Sorry to bump an older thread but in doing some research on the
controller board used in the sewing machine motor kit I had purchased
I found the following site.
Please note that I have no affiliation to this site nor have any
experience with his products, but he seems to offer a full line of
conversion kits and parts for these motors. This includes full kits
for the mini-lathes and mini-mils along with a ton of other machines.
It also appears he does some repair services as well.
-Jay
On 2/9/24 21:45, Tony Smith wrote:
For some strange reason laser cutters use 3-phase steppers rather
than the usual b-polar ones. Makes the drivers a bit expensive &
rare by comparison.
Tony
*From:*[email protected] [email protected] *On Behalf
Of *davesmith1800
Sent: Friday, 9 February 2024 2:06 PM
To: [email protected]
Subject: Re: [7x12MiniLathe] Variable speed motors
It interesting thd different ways I have seen for low speeds
First on AC motors lots of poles you charge the poles for different
speeds but very costly motors.
Then was just was belts and or gears.
Variable pitch belts and charge the gear Works but still gears at one
was costly too but not bad.
The AC/DC motors usd a Variable transformers. This first lower cost
motor setup 1 to w to 1 to 100 speed reduction
The electronic speed control start with small motors but cost was a
lot lower.
The stepper motors in Printers was big change. In 1970's they did
not need encoders for low cost printers. If skip a a few spaces out
of over a hundred thousands you not notice. Next use on low cost CNC
equipment. For most part they used two phases motor.
Later I saw mini 3 phase motor but I saw first controls in 1960's but
winding your own motors.
Now we know as brushless DC motors . Some maybe two phases I just
have seen it .
Some dates can earlier history on web can be do to the writer error.
I know mine maybe off too.
The 1960's is where lot changes switch from tubes to transitions
Dave
Ralph Lehotsky 2:12pm
Yes - it's probably geared down quite a bit for that application,
so power is not as important there
chrisser