Newbie - Servos and linear scales - CNCzone.com-The Largest Machinist Community on the net!

supahonkey · #1 08-03-2010, 10:22 PM

I have a Bridgeport Series I with a ProtoTrak conversion. The machine was robbed of it's servos and linear scales before I received the mill (for free!). I want to put servos back on it and use Mach3. I am well versed with steppers but know nothing of servos. Do the servos get positional feedback from the linear scales or is the feedback acquired solely from the encoders? I just need to know whether I need to drop a lot of money on new X,Y and Z scales.

Thanks!

gus · #2 08-04-2010, 07:02 AM

There is no need for 2 measuring systems. I prefer linear encoders, but rotary[on the servo] are widely used and perfectly acceptable. Buying both certainly is a waste of money.

ichudov · #3 08-04-2010, 10:39 AM

Servos use encoders for positioning feedback, and sometimes tachometers for velocity feedback.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Newbie- encoders/linear scales?	surfjunkie	DIY-CNC Router Table Machines	1	06-26-2009 01:34 AM
Linear Scales Basics	Leha_Blin	Linear and Rotary Motion	0	12-18-2008 06:53 AM
Linear Scales from CDCO Machinery?	jeffmorris	DIY-CNC Router Table Machines	0	04-25-2008 06:08 PM
VM-3 Linear Scales?	100	Haas Mills	7	03-04-2007 11:31 PM
fanuc 6 and ttl linear scales	skippysmt	Fanuc	2	02-25-2007 05:56 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)