4 AXIS CNC USB Controller Mk1 - Pennybuying Offical Blog
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1. 2 a metre didn t stop the unit from working Block Diagram of controller USB CNC system Spinlde speed Hardware Controller module 7 0 10v out improvements JOG desi gned by sky controller gt Op tocoup ler Isolated TVS protection z TYS protection Op tocoupler Isolated As you can see there are many enhancements to the Controller board that have been added by SKY Studio e Opto couplers on the inputs e Opto couplers on the relay outputs Separate power supply for the I O points e DC DC regulator for the PIC4550 improves noise immunity e Extensive use of TVS Transient Voltage Suppression protection to protect the circuitry e Fully isolated 0 5 10v Spindle speed controller optional Page 5 4 Axis USB CNC Controller Mk1 By It must be noted that the Spindle speed controller module 0 5 10v out is NOT included with the basic board it is an optional extra It also uses two of the output pins 1 amp 3 so don t think you will gain 3 relay outputs when you install that module 4 AXIS Mk1 MOTOR connector While the majority of the pin uses are silk screened onto the circuit board and can be read from the underside most people will have the board mounted into a case before making the connections which obviously means they won t be readable at the time Spindle Speed z Contfolle gt Opfidh to the pins you will be most interested in t Okay let s get straigh The2. pin connector for 26 pin number in brackets the pins are used as follows Pin 1 7 X Jog X axis Pin 2 Pin 3 9 Pin 4 10 Y Jog Y axis Pin 5 11 Z Jog Z axis 8 X Jog X axis Y Jog Y axis Pin 6 12 Z Jog Z axis Pin 7 13 A Jog A axis Pin 8 14 A Jog A axis Pin 9 15 GND Ground pin Pin 10 16 5v Power Pin 11 17 RST Reset Test board common to on board reset test button Pin 12 18 F Jog Speed feedback from Pot 10 30K ohm wiper pin 0 5v Pin 13 19 S System LED Pin 14 20 P Power LED Pins 1 6 and 21 26 on the 26 pin connector are reserved for future use and may already be connected on the board Don t connect them externally Page 9 4 Axis USB CNC Controller Mk1 By http Avww pennybuying com The Jog pins are active when pulled high 5v best to do this via 1k resistor to limit current Reset Test pin pull to Ground to reset Power and System LED is to 5v best via a1k resistor Software Installation Download and install both the CNCUSB program and USB driver from Planet CNC com Install as per the instructions you got with that download Its pretty much Click Yes Next Next OK To install One point of note though do NOT plug the USB CNC controller board in until after you have installed the USB driver or you may have difficulties later To remove the 25 command limit on sending codes to the controller be sure to obtai
3. resistance VFD s only are supported Integrating Capacitor Has better than 10 tollerance to help produce a 1 linearity for 0 5 10v output The Spindle speed controller module outlining some of its features Note this is an optional component that is not supplied with the basic board The connection to the VFD analogue input should have a 100nf capacitor across the VFD terminals and the wire should pass through a RF ferrite ring no less than 5 loops to ensure adequate RF isolation The 0 5 10v output is only suited to drive VFD units with 100k impedance and is only capable of supplying 25mA max current Page 8 4 Axis USB CNC Controller Mk1 By http Avww pennybuying com Jog input port connector It appears that there are several versions of this board The one pictured in this manual has a 26 pin connector however I ve only been able to track down the pin out for the 14 pin connector The remaining pins are reserved for future use according to the information have received un Pie She A LEDHER T t FSF RH ES POR vee Sr SEF DENS I SIRSVANGND SHOE RMLED GAT 3 Gant IEEE View from Top side of the board Note that the Pin 1 Square Pin is the Pin 1 of a 14 pin connector It is actually the r d pin on a 26 pin connector As you can see there is some more Chinese writing on this picture which I do not understand so my descriptions may differ a little from the original Assuming a 14
4. 4 Axis USB CNC Controller Mk1 By http Avww pennybuying com 4 AXIS CNC USB Controller Mk1 By Pennybuying http www pennybuying com English manual PLEASE NOTE The Author of this manual is in no way affiliated with either SKY Studio http www pennybuying com or USB CNC Planet CNC com This manual is provided as a courtesy to non Chinese speaking CNC enthusiasts who wish to use this board as an alternative to the ones supplied by Planet CNC There is talk of Counterfeit boards however do not believe this is one It is based on the open source USBCNC Mk1 board but with many enhancements by Sky Studio Please be sure to get a genuine license key from www Planet CNC com to active the USBCNC program Enjoy Page 1 4 Axis USB CNC Controller Mk1 By http www pennybuying co m Contents CNC USB SOM WANG varsel aden 3 SIV es La ULIMIT EE EE ecu tbr eaboa E E AE 3 EV REE NN EE EN 3 TE Controller save 5 SKY Studio enhancements soi caressa sssecensasnnsecasacecernesnenlecdseecaneccendtennioassacecadbeteaetiaantvaceanenes 5 Block Diagram of controller srncsssrtncenssetesansteruseaesdtnnedendibvsdchunpotcastihatendsRaviadatetiiadxeneseiptanetioneees 5 4 AXIS Mk1 MOTOR connector are 6 The 4 Axis EEA eee 6 LIMIT switch connector uaesmseksderssanee peke sekken ke 7 ESN EN ee 7 O tput relay Connector RR EE 7 12v Power Input Connector uk mmmdmsermmmrmnininrnesienninsunnv isse dvete 7 Spindl
5. 4 Axis connectors The 4 Axis connector blocks each contain 3 pins used as follows Pin 1 Provides the DIR or DIRECTION signal to the motor driver Pin 2 Provides a Common Anode or Cathode Based on Yellow Jumper position Pin 3 Provides the CLK STEP or PULSE signal with minimum 12us pulse width to the motor driver This revision board has a Yellow Jumper Labelled Select near the Z axis connector beside the I2C port Short Pins 2 3 for 5v common Anode Short Pins 1 2 for Ov common Cathode If your revision board does not have this jumper it will be common anode only Page 6 4 Axis USB CNC Controller Mk1 By http Avww pennybuying com LIMIT switch connector Six Limit Inputs are provided These inputs are opto isolated Power for these inputs is provided from the separate 12v input to the board LIMIT 1 6 connects to the limit switches From 1 to 6 they are X X Y Z Z Y It s recommended that a 100nF capacitor is connected directly across the switch terminals to increase noise immunity Pin 5 Z can be used for tool length measurement e Pin 7 GNDA is Ground or common for all Limit switch connections The Limits can be configured for one of two possible configurations The preferred configuration will determine limit switch connections e NORMAL Each switch is connected to its own pin with positive and negative limits determined by designated switches e SINGLE INPUT
6. Both axis limit switches are connected to one pin Direction of travel determines if positive or negative switch is triggered E Stop Connector The E Stop Input connector is located between the LIMITS connector and Z Axis Connector Like the LIMIT connectors it too is opto isolated For safety you should have the E Stop circuit as Normally Closed That way if a fault in the wiring develops it will trigger the E stop alerting you to this fact Output relay connector Three outputs are provided These outputs are opto isolated and can only drive solid state relays Labelled on the board as e Pin 1 Flood Output 2 can be reassigned in USBCNC Software settings e Pin 2 Spindle Output 1 can be reassigned in USBCNC Software settings e Pin 3 Mist Output 3 can be reassigned in USBCNC Software settings e Pin 4 GNDA Ground 12v Power Input connector This connector is used to provide power for the optically isolated section of the board If you don t want to use the Limit switches or E Stop this power input can be ignored e Pin 1 12vin e Pin 2 GNDA The 12v input is regulated down to 9v An LED is provided on the board to indicate that the 9v power is active Some information is available that suggests the 12v input can be between 12 24v however as 24v is specified as the MAX VCC of the regulator I C It s safer to keep it around the 12v range All Pins marked as GNDA are common for this section of the board T
7. G40 G41 G42 Cutter Radius Compensation supported advanced G codes G43 G49 Tool Length Offsets supported advanced G codes G54 G59 3 Coordinate System Origins supported tested with SolidCAM MasterCAM ArtCAM Vectric generated G code Profili 4 axes and 3 axes G code supported import tool path from e DXF files e PLT HPGL files image files e NC Drill Excellon files Page 3 e Gerber RS 274X files tool path simulation automatic homing procedure automatic tool length measuring advanced tool change procedures export tool path to e G code e DXF a SDK software developers kit is available 4 Axis USB CNC Controller Mk1 By http www pennybuying com Page 4 4 Axis USB CNC Controller Mk1 By http Avww pennybuying com The Controller DISCLAIMER Here s the fine print This controller is manufactured in China and has several blocks of Chinese text screen printed on it don t profess to know any Chinese at all so some descriptions are based on electronic knowledge amp measurements They are correct to the best of my knowledge but some errors and omissions are possible SKY Studio enhancements Based on the Open source USBCNC Mk1 Hardware design SKY Studio have made significant improvements over the original design The controller is extremely stable even in noisy environments part of the testing phase included a 1cm spark gap within 10cm of the board Even the use of an arc welder within
8. e Speed Controller Connections srrnrrrnrnvranenvrrnrnnvrnrrnrrnvrnrrnnrsvennrrnennennnrnvrnsennrnsrnne 8 Jog Input port COMME CUM svarene beeeep eks oE EEE EA EEEIEE ETERNE 9 Software Installation oo cccccccssccccccccececeesencccecccececeesensececcesesceeeeneaccecceceeeeetenteaceceseueeeeentaeecs 10 Page 2 4 Axis USB CNC Controller Mk1 By http Avww pennybuying com CNC USB Software SKY s CNC USB Mk1 Controller is designed to be compatible with Planet CNC s USBCNC Controller software System Requirements USB CNC specify the following requirements Minimum system requirements 1 6 GHz or faster processor 1024 MB RAM 500 MB available hard disk space DirectX 9 graphics device with WDDM 1 0 or higher driver USB 2 0 port NET Framework 3 5 SP1 Features The Standard Board features 25 kHz maximum step frequency 3 digital outputs flood mist spindle 12 us minimum pulse width manual jog input keys for all axes limit keys for all axes control external devices with I2C protocol USB V2 x from PC Laptop running Windows XP Vista or Windows 7 32 bit or 64bit motor driver connector pin out is compatible with 10 pin open source interface controller works with most step dir motor drivers available on the market buffered I O for maximum performance advanced interpolation algorithms start stop pause and resume execution of program on your machine standard RS274 NGC G code EMC2 compatible advanced G codes
9. hey are isolated from the Page 7 4 Axis USB CNC Controller Mk1 By http www pennybuying com rest of the board Spindle Speed Controller Connections Note These Connections are NOT used unless the board is fitted with the Add on Spindle speed controller module It plugs in between the Metal shielded processor and the connector itself All Connections on the Spindle Speed controller are optically isolated from the rest of the board The pins are as follows Pin 1 GNDB Analogue ground for the spindle speed control voltage output e Pin 2 0 5 10v spindle speed control voltage output Either 0 5v or 0 10v selectable by jumper on the module board Pin 3 K Cathode output of opto coupler for spindle on off e Pin 4 K anode output of opto coupler for spindle on off The Spindle Speed controller module contains an isolated DC DC convertor to provide the voltage for the 0 5 10v output This enables a true full scale swing for the control voltage this is not possible when using the original output analogue voltage from the VFD unit itself Isolated DC DC convertor This provides the 12v necessary to create the 0 10v control voltage 0 5v or 0 10v Selection Jumper Set to 0 10v at factory Opto isolators for both spindle PVWM and Spindle CVV outputs NE Buffered 0 5 10v 4 S JE Output kg ji y E gt E TA ES Max 25mA which means 100k min
10. n a licence for the board This license will remain valid for the controller board and can be migrated between PC s as long as they only talk to the board the license is for Enjoy your new board it will serve you well Page 10
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