Sherline Lathe

Posted by admin on October 3, 2011

I purchased a used Sherline 4000 Lathe on craigslist for $140.  It was in excellent shape, but had no accessories included.  Using the Sherline History page, I was able to identify the lathe as being made in approximately 1990.  It has the 1/2 hp AC/DC (Universal) Motor.

Drive Motor and Speed Controller

There are a few options I've investigated for a new drive motor and controller.  The current motor has a nice amount of power, but the speed controller does not hold the speed very well, and pulses at low speeds.  The current speed controller is just a basic AC motor controller, but the motor is AC/DC brush type motor.

Use the current motor and replace the speed controller.

Since the motor is an AC/DC 115V motor, a DC speed controller can be used to run the motor. Any 1/2 horsepower, 115V AC input to ~90V-120V DC output controller should work fine.  KB electronics is a commonly used brand for newer mini lathes.

SCR Speed Controller - control speed using a potentiometer, less expensive KBIC-120

PWM Speed Controller - control using a pot, analog input, or PWM.  Speed can be controlled from CNC software. KBWD-13, or KBWD-16

Stepper Motor.

A large stepper motor could provide fine speed control, and be easily controllable from a CNC controller.  Maybe this could be used for threading?

Stepper should be about 5-6 Amps.  Gecko G723-400- $59.00

Controller: Gecko G210X  $140.00

Replace motor and speed controller with a DC motor.

Expensive, and off the shelf setups don't have the ability to be CNC controlled

CNC Control

CNC control can be useful in more ways than just automation, or making difficult shapes. Threading can be done using CNC instead of the complex threading setup using change gears. By adding an encoder to the spindle pulley, the CNC system can keep track of the spindle position, and drive the carriage to cut the correct pitch thread. The spindle will be turned by hand for most threading operations, and the carriage will follow, being driven by a stepper motor.

Sherline sells a stepper motor adapter for the axis of the lathe and mill. It's part number "Sherline 67102", but I can't find it for sale anywhere, and I suspect that it's pricey, like all other sherline accessories. A2Z CNC is the only vendor I found that sells an adapter. Item Code: CNCMMS

To convert a single axis to CNC, you need the following:

  1. A2Z CNC Nema 23 motor mount for Sherline Mill & Lathe - Item Code: CNCMMS $49.95
  2. Sherline CNC Motor Coupler - Item Code: 67105 - 15.95 
  3.  5-40 x 7/8" Socket Head Cap Screw - Item Code: 67115
  4. Nema 23 Stepper Motor with ~200 oz-in of torque.  The Gecko G723-280-4 maybe overkill for this application at 280 .oz-in of torque but $59 is reasonable for US made motor.

The controller will primarly be an Arduino microcontroller.  This standalone controller will be perfect for setting feedrates and thread pitches.  Optionally the motor drivers can be connected to the computer for full CNC control.



Posted by Marrene on
hello friend am from Ecuador, I would like to know then imoprt G code as I do with the target of acquisitions of data and so the driver of the stepper motors anything you send me my e and help me a lot in my thesis regards
Posted by qgolgyqlcfx on
gra8Cz , [url=]llscozrewbfe[/url], [link=]pmahnswdsktj[/link],
Posted by gqodxccasp on
NzCV96 triahuswbfil
Posted by mxwghee on
uxDDzK , [url=]wmhtfnimizpz[/url], [link=]xqpwdozidlmi[/link],
Posted by ボッテガヴェネタ 店舗 on
ボッテガヴェネタ 店舗
ボッテガヴェネタ 店舗
Posted by スーパーコピー gucci 長財布 アマゾン on
スーパーコピー gucci 長財布 アマゾン
Posted by グッチ 財布 スーパーコピー 激安 6帖 on
グッチ 財布 スーパーコピー 激安 6帖
Posted by MelbazeT on
example of cover letter in nursing
fresh graduate accountant resume sample
factory labourer cover letter
Posted by Winstonref on
thanks towards this countless revealing website, keep up the skilled position check out this casino offers
Posted by Winstonref on
thanks benefit of this significant revealing website, living up the skilled position check out this online casino offers , buy sex toys
Posted by Jasonmar on
check out this online casinos where you can conquer legal funds with the help of this lightPlaying bitcoin casino , buy sex toys
Posted by Jasonmar on
block out this online casino where you can conquer genuine kale with the usurp of this guidePlaying roulette , buy sex toys
Posted by Jasonmar on
study doused this casino where you can win genuine funds with the usurp of this guidebookPlaying casino bonus , buy sex toys
Posted by Winstonref on
thanks for this countless revealing website, living up the skilled position check out this online casino offers , buy sex toys
Posted by Jasonmar on
study out this online casinos where you can conquer legal kale with the serve of this lightPlaying online roulette , check this casino
Posted by Sidneycreem on
Танкат - Мощный активатор потенции, созданный с учетом российских реалий
Официальный сайт:
Posted by Marcoshaf on
Sherline offers the world's most complete line of precision mini-benchtop manual and CNC lathes, milling machines, and machine-shop accessories for light-industrial and home-shop use.
By the way! The best essay writing service -
Leave a Reply

(Your email will not be publicly displayed.)

Captcha Code

Click the image to see another captcha.