BF20 Electronics

This page will cover several electronics packages that will work for the G0704.
I'll start with the components that I plan to use and add some more that can or are being used sucessfully by others

Hoss CNC package - This runs at 50 Volts and 5 Amps

(3) KL-6050 Bipolar Stepper Motor Drivers  $59.95  /  $179.85
(3) KL23H2100-50-4B (3/8 Dual shaft with a flat) 570 oz-in  $64.95  /  $194.85
(1) KL-600-48 48V/12.5A Power Supply $129.95
(1) C10 Bidirectional Breakout Board $28.04

Option A Total = $532.69

Note: I've done many tests running all 3 Axis' off of this power supply from Keling.
KL-350-48 48V/7.3A
110V/230V  $59.95
It has proven to work quite well even at full speed so it can be considered a viable option
to use instead of the 12.5 Amp supply listed above. Watch the Video here.
I'd still go with the 12.5A if you plan on adding a 4th and 5th axis.

Option B Total = $462.69

A good middle of the ground unregulated power supply would be this.
KL- 5010 : $149/pcs Specification:
Unregulated Power Supply 500W, 50VDC/10A , Input: 120VAC or 230VAC

Option C Total = $551.74

Keling has new Digital drivers that offer many new features like Motor auto-identification,
Mid range Anti-Resonance and idle current reduction.
Use (3) KL-5056D instead of the (3) KL-6050's.

Option D Total = Add $120 to the cost of the other Options.

Note - Alternate Sources:
Keling may have a shortage on the KL-6050's and 570 oz/in motors from time to time,
I've shown these to be a superior combination, fantastic performance at a great price.
They've become very popular.
Similar 60 Volt 5 Amp drivers and 570 oz/in motors can be found from the following vendors.
Drivers
Circuit Specialists CW250
Ebay seller Cnccomponent from China

Motors
Model Shop CNC Inc.
Mach Motoion
Home Shop CNC


While you're at Keling, pick up an E-Stop switch and  parallel cable for any package shown.
Make motor cables using DB9 connectors from Computer Cable Store.
DB9 Solder Connector - Female (6-3 axis,8-4 axis)
DB9 Solder Connector - Male (6-3 axis,8-4 axis)
DB9 / HD15 Plastic Hood (9-3 axis, 12-4 axis)
Get excellent shielded oil resistant CNC cable from McMaster Carr, part #8082K81
I used this relay from Davis Instruments for my Flood and power drawbar, etc.
Opto 22 Z-Series Solid State Relay also available at Allied Electronics.
(3) Moujen MN-5311 Mini Enclosed Limit/Home Switch  $11.50  /  $34.50

Attention! - Cnc4pc has come out with a new BOB and adapters that use RJ45 cables
to connect the BOB to the Keling drivers. Makes wiring a piece of cake.
Would only add $29.68  for the C35 BOBC34KL adapters, and A26 RJ45 cables.


Optional CNC Electronics Packages


Hoss Heavy Duty
- This is a Hybrid package that will give you the most torque
to all axis' without wasting money on components that aren't being used to their potential.
Tons of grunt for the heaviest duty milling.

(2) KL-6050 Bipolar Stepper Motor Drivers (X and Y)  $59.95  /  $119.90
(2) KL23H2100-50-4B (3/8 Dual shaft with a flat) 570 oz-in  $64.95  /  $129.90
(1) G201X  7A, 80VDC (Z axis) - $107 or KL-8060  Bipolar Driver $96.95
(1) KL34H295-43-8A  NEMA 34 STEPPER MOTOR 906 oz-in (Z axis) $99.00
(1) KL-600-48 48V/12.5A Power Supply $129.95
(1) C10 Bidirectional Breakout Board $28.04

Total = $612.89 or $602.84


Hoss Digital Package - Look out Gecko, Keling has some new stepper drivers that are digital vs. analog. These high performance drives should become very popular in no time.
They offer Anti-Resonance, Motor auto-identification and parameter auto-configuration technology, Multi-Stepping allows a low resolution step input to produce a higher microstep output for smooth system performance, motors can run with much lower noise, less heating, and smoother movement. Rapids speeds much higher than with an analog drive.

(3) KL- 5056D Digital Stepper Driver  $99.95 / $299.85
(3) KL23H2100-50-4B (3/8 Dual shaft with a flat) 570 oz-in  $64.95  /  $194.85
(1) KL-600-48 48V/12.5A Power Supply $129.95
(1) C10 Bidirectional Breakout Board $28.04  or  C11 - $129

Total = $652.69  or  $753.65

Note: adjust KL-60048 power supply to 45V output with onboard pot.


Hoss Heavy Duty Digital - This is package will give you the most torque
to all axis' with ease of installation and wicked rapid speeds.
Tons of grunt for the heaviest duty milling.

(3) KL- 5056D Digital Stepper Driver  $99.95 / $299.85
(2) KL23H2100-50-4B (3/8 Dual shaft with a flat) 570 oz-in  $64.95  /  $129.90
(1) KL34H295-43-8A  NEMA 34 STEPPER MOTOR 906 oz-in (Z axis) $99.00
(1) KL-600-48 48V/12.5A Power Supply $129.95
(1) C10 Bidirectional Breakout Board $28.04  or  C11 - $129

Total = $686.74  or  $787.70



Bare Minimum Recommendation
- This runs at 50 Volts but only 3.5 Amps
Should be easier for newbies to setup but is definitely weaker. Don't expect
to be able to hog as much metal with this setup.**

(1) Geckodrive G540 4 Axis driver - $249 (with other purchase)
(2) KL23H2100-35-4B   381 oz-in stepper motor (X and Y axis) $49 / $98
(1) KL23H2100-30-4BM  495 oz-in stepper motor (Z axis) / $59.95 *
(1) KL-600-48 48V/12.5A  power Supply  /  $129.95

Total = $536.90

* Run with a 1.33:1 pulley ratio (24 and 32 tooth pulleys) for 658 oz/in output.



Gecko CNC Electronics Package - Uses Gecko Drives, runs at 72 Volts and 7 Amps

(3) G201X 7A, 80VDC - $107 / $321
(2) KL23H2100-30-4BM 495 oz-in for X , Y axis - $59.95 / $119.90
(1) KL34H280-45-4A STEPPER MOTOR 640 oz-in for Z  axis - $89
(1) KL-7212, 72VDC, 12A  Power Supply - $169
(1) C11G multifunction Breakout Board - $109

Total = $807.90


Servo CNC Electronics Package

  NEMA 23 Servo Motors 3 Axis CNC Kit 

(3) Geckodrive  G320X, 80V/20A
(3) KL23-130-60  (NEMA23)  Dual Shaft, 350 oz-in Peak 60V/20A Servo motors
(3)  US Digital:  E4P-300-250-D-H-D-1, 1/4 Shaft -Mount Optical Encoder +
(3)CA-MIC4-SH-NC-6 Cable for E4P-300-250-D-H-D-1 encoder
(1) KL- 4813 : Unregulated Power Supply 625W, 48VDC/13A
(1) C10 Breakout board

Total = $909.99



** Some people just don't comprehend what's important in a CNC system. They tout
" hey, look how fast it rapids an empty table". The mill will spend 95% of it's time cutting,
that's what counts. It takes a lot more force to push a cutter through metal stock with a vice and/or clamping pieces on the table. An anemic system might look ok going through air but you aren't going to get anything done cutting air. This mill is much more capable than an X3, I've shown that in my test videos, choose a package that will get the job done with no worries.
BF20.com Electronics
 
Visit our parent site Hossmachine.info!
 
 
 
Nema 23   oz/in Keling Part Number Amps Volts
381   KL23H2100-35-4B 3.5 53.5
382   KL23H2100-30-4B 3.0 84.7
387 KL23H284-35-4B 3.5 64.8
425 KL23H286-20-8B 2.8 83.4
495     KL23H2100-30-4BM 3.0 84.7
570   KL23H2100-50-4B 5.0 50.6
       
       
Nema 34
oz/in
     
640 KL34H280-45-4A 4.5 83.4
640                         KL34H280-45-8A and8 B 6.3 47.5
640                         KL34H280-55-4A 5.5 64
906                         KL34H295-43-8A and 8B 6.1 58.1
1200                         KL34H2120-60-4A 6.0 78.4
       
       
       
       
 
Keling Motor Comparison Chart

This chart shows Stepper Motors available from Kelinginc.net
by their oz/in size,
part number, Amps/phase and max Voltage based on the geckodrive calculation
"square root of the motors inductance multiplied by 32". This can make it easier when choosing a motor to make sure it is within the specs of the driver and power supply of your choice. To get the most out of your motor, you want the driver to be able to provide the amperage needed by the motor and the power supply to be as close to the motors voltage without going over. Example, a 906 oz/in 6.1 Amp motor run on a 3.5 Amp driver will only output 520 oz/in. A 50.6 volt motor will run very well on a 48 volt power supply but would overheat on a 72 volt power supply.
Note: 8 wire motors are rated as wired in the preferred Bipolar parallel mode.