Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Gemstones, Minerals & Fossils
Lapidary
Actually Building the Machine!
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="ken2m" data-source="post: 333182" data-attributes="member: 7269"><p>Just thought i'd put it out there as sometime any designer can have a pre concieved idea that may not be the best idea. Good job on thinking reguarding the loading. </p><p></p><p>From memory (it was about 20 years ago) I was using 4 phase stepper motors 200steps/rotation and could get 120rpm but with limited torque driving 2 phases at the same time (in effect microstepping but missing the main steps). Maximum driving one phase at a time was about 60 rpm. These were done through the parrallel port. Using a dedicated processor would have been the way to go, but 20 years ago it would have been a costly project with limited capability. Ken.</p></blockquote><p></p>
[QUOTE="ken2m, post: 333182, member: 7269"] Just thought i'd put it out there as sometime any designer can have a pre concieved idea that may not be the best idea. Good job on thinking reguarding the loading. From memory (it was about 20 years ago) I was using 4 phase stepper motors 200steps/rotation and could get 120rpm but with limited torque driving 2 phases at the same time (in effect microstepping but missing the main steps). Maximum driving one phase at a time was about 60 rpm. These were done through the parrallel port. Using a dedicated processor would have been the way to go, but 20 years ago it would have been a costly project with limited capability. Ken. [/QUOTE]
Verification
Post reply
Gemstones, Minerals & Fossils
Lapidary
Actually Building the Machine!
Top