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Re: AC drives
AC servo and DC brushless motors are I believe one and the same for all intents and purposes. An induction motor cannot be described as a servo motor as its low speed performance is generally a bit
By Peter Seddon · #51734 ·
replacing feed screw with a hydraulic cylinder
Did somebody try to get rid of the feed screw all together and replace it with a hydraulic cylinder? At the first glance it may present several advantages: no backlash, big force at low
By al5502 <telecomt@...> · #51733 ·
Re: Three phase 50 V. Help wanted
elson@... writes: WHERE did you come up with "50 V"??? It clearly says "50 Hz.", which is "cycles" in Fifties-speak, NOT "V[oltage]" !!!!!!!
By Jan Rowland · #51748 ·
Re: AC drives
synchronous I've been confused between DC Brushless and AC synchronous Servo motors and thought I'd sorted this out, but now I'm confused again. The MAC AC Servo motors by Indramat (now Bosch
By gittt2000 <gitlang@...> · #51730 ·
CNC router
Hi, I need all the help I can get as I'm trying to build my first cnc router. I have basic cnc knowledge, and I have a complete workshope. I need information on how to start, what do I need to know,
By mina_aboulsaad <minaf@...> · #51751 ·
Inexpensive PCB engraver
I seem to remember some one was asking about an inexpensive PCB machined. This may work, i have heard of them being used before.
By Aussiedude <aussiedude@...> · #51750 ·
Re: Quickstep solfware
http://cpwojcik.home.att.net/Qstep/Quickstep_CNCx.html aubob2002 wrote:
By Vajk Fekete · #51729 ·
Quickstep solfware
Can anyone help me find the web sit for Quickstep solfware The address I have is http://cpwojcik.home.att.net/qstep_CNCx.html but I can not get through on that address. You help would be
By aubob2002 · #51728 ·
Conversational CNC
As long as shameless plugs are in order, have a look at Axis Wizard, under Belfab URL, in the tagline. Probably doesn't do quite as much in threading mode as Wayne's, but it does do threads as
By bjammin@... · #51732 ·
Re: Polar Coordinates CNC?
Yes but moving from x(0)y(0) to x(1)y(1) requires the same sort of calc. However you cut it though, the inherent differences in accuracy at differing radii in polar machine, is the death knell for
By bjammin@... · #51731 ·
Re: Conversational CNC
Tim, Here is the shameless plug for my software. Lathe Quick Code V2.5 $75.00 http://www.geocities.com/wayne_j_hill/LQC2000.html Demo download on web site. Programs in Diameter. Programs in Inch
By wayne_j_hill <wayne_j_hill@...> · #51727 ·
Re: Conversational CNC
Bill, Haas resently paid Hurco some big bucks in a patent law settlement to use conversational programming on their controls :~) Seems Hurco has some patents on the machine side of conversational
By wayne_j_hill <wayne_j_hill@...> · #51726 ·
Re: AC drives
hugo_cnc wrote: DC Brushless motors are really misnamed. THEY are truly synchronous motors. AC servo motors are VERY similar to ordinary AC induction motors, and they ARE asynchronous, as they
By Jon Elson · #51725 ·
Re: Conversational CNC
Wayne, Please do give us the shameless plug. It is considered acceptable for your to explain what you have, give a price, and answer questions about it. You just have to conduct actual transactions
By Tim Goldstein · #51724 ·
Re: PCL controllers available?????
My friend uses them and swears by them and not at them. http://www2.automationdirect.com/store/Home/Home
By wayne_j_hill <wayne_j_hill@...> · #51723 ·
Re: Conversational CNC
Conversational why conversions where I worked. They are conversational and for short run or prototype they could not be beat. All you need to do is follow the menu and answer the questions! After
By dodge1320 <motionin@...> · #51722 ·
ann: Ebay mill Item # 1784625512
Item # 1784625512 This is a square column mill that may be suitable for CNC conversion.
By Greg Jackson · #51721 ·
Re: PCL controllers available?????
Bill - I ran across this site recently: http://www.programmable-controller.com/ Looks like an interesting approach... Regards, Carlos Guillermo VERVE Engineering & Design
By Carlos Guillermo <carlos@...> · #51720 ·
Re: Polar Coordinates CNC?
Okay. I'll pose the design to a few folk that I know and see what they say about the EMC running it. It will not be programmed with polar coordinates at this point. Ray <s>
By Ray Henry <rehenry@...> · #51717 ·
Re: Polar Coordinates CNC?
Fred, I have to agree with the other Ray H. A Polar machine/software making a move from X(1) to X(2) must calculate every position along the path, whereas a Recti-linear machine merely has to say' "Am
By Raymond Heckert <jnr@...> · #51718 ·