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Question #: 837

Question: Is there a significant difference between timing belt and chain drive systems?

Current Solution

Repeatability is very good for these machines and can be as low as .001" depending on the way you control the machine. If you use the spindle, you can be moderately aggressive, but you will want to use a finishing pass to make sure the edges are exactly what you would expect. since this is a kit, there will be varying levels of repeatibility depending on how well the kit is assembled and maintained. Calibration, as with all machines, is a critical aspect of keeping repeatibility over time.

Timing belts and chain are about the same when it comes to precision as long as the chain wraps most of the drive sprocket. There are differences to each of these systems as Kevlar with steel cables impregnated within the Kevlar and the steel used in roller chain have different coefficients of linear expansion (the expansion and contraction over temperature change), and roller chain may stretch over time, so it is important to maintain the machine by tensioning the chain and timing belt, and calibrating the machine over time and when the temperature changes significantly.

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Other Possible Solutions to this Question

  • What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

    The frame size difference of the NEMA 23 and 24 is very slight and, depending on the motor mount both will most likely fit. The bigger difference between these stepping motors is the torque. Make sure that the motor that you purchase has the appropriate torque for the axis that it will move.

    Is is safe to go with the higher torque? Or if the torque is too high for what i need is that bad?

    You can use a motor with higher torque. Just make sure to select the correct driver for that motor.

    Additional Information:
    The frame size has nothing to do with torque. Nema 23 means a 2.3" frame. Nema 24 means a 2.4" frame. That's all. Either could have more or less torque depending on speed and power.

    Click the link to add information to this solution:
    What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

  • What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

    The frame size difference of the NEMA 23 and 24 is very slight and, depending on the motor mount both will most likely fit. The bigger difference between these stepping motors is the torque. Make sure that the motor that you purchase has the appropriate torque for the axis that it will move.

    Is is safe to go with the higher torque? Or if the torque is too high for what i need is that bad?

    You can use a motor with higher torque. Just make sure to select the correct driver for that motor.

    Additional Information:
    The frame size has nothing to do with torque. Nema 23 means a 2.3" frame. Nema 24 means a 2.4" frame. That's all. Either could have more or less torque depending on speed and power.

    Click the link to add information to this solution:
    What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

  • WHAT IS THE DIFFERENCE BETWEEN PARALLEL AND USB ELECTRONICS COMBOS MOTOR KITS

    The parallel (printer cable) port is uses the computer as its main source of pulse trains to operate the motor driver directly. Parallel ports are a direct connection from the processor commonly referred to as GPIO pins (General Purpose I/O pins) and provides a convenient and powerful way to interface with the computer. The parallel breakout board is included in those kits only to condition those signals for use with the drivers.

    The USB serves at the actual controller, sending the pulse trains, but the computer sends simple human readable instructions to the USB controller to tell the controller how to send pulses.

    The non-technical differences that may serve as the most important information to you is that the parallel configurations allow for a wider variety of industry standard software that can be used to control the cnc machine. The USB that we offer requires the operator to use a software called Planet-CNC software which is a very well made and feature full cnc control software.

    Additional Information:


    Additional Information:


    Additional Information:
    USB Motion controller breakout board work with planet cnc software?

    Click the link to add information to this solution:
    WHAT IS THE DIFFERENCE BETWEEN PARALLEL AND USB ELECTRONICS COMBOS MOTOR KITS

  • WHAT IS THE DIFFERENCE BETWEEN MACH3 AND MACH4?

    Standard Version Features Mach3 Mach4 Hobby Mach4 Industrial
    Number of Planners 1 1 1
    Number of Axis 6 6 6
    Out of Band Axis (OBA) 0 1 6
    Slave axis (uses up coordinated axes) 3 N/A N/A
    Slave motors (does not use up coordinated axes) N/A 4 per Axis 4 per Axis
    API Interface - Open to All Hardware Yes Yes Yes
    Extended Plugin Support Yes Yes Yes
    User customizable GUI Yes Yes Yes
    Unified (GUI) Interface - PLC, CNC, etc.. Yes Yes
    Unlimited IO Yes Yes Yes
    Modbus PLC Yes Yes Yes
    PMC (Ladder Logic addressing for cnc/plc) Yes Yes
    Unlimited File Size Yes Yes
    Tool Path Display Yes Yes Yes
    Tool Path Speed & Quality Low High High
    Scripting - Customization Yes Yes Yes
    LUA Scripting - simple, fast, cross-platform Yes Yes
    - Lua sockets (ftp, http, smtp,..) Yes Yes
    - SSL (security layer) Yes Yes
    - LFS (manage large files and data storage) Yes Yes
    - Seriel port Yes Yes
    - Enraving of part numbers / serial numbering of parts Yes Yes
    - Plugin panel objects Yes Yes
    IPC Library for Data Sharing/tracking (Interprocess communication) Yes Yes
    Full Feature Screens/Controls Per Machine Type Yes Yes
    Currently Availabe: Mill, Router, Lathe, 3d Printer Yes Yes
    Multiple gcode Interpruters (Per Machine Type) Yes Yes
    Probing - Intergrated in standard screens Yes Yes
    Simulated 3d Machining (with additional plugin license) Yes Yes
    Tool Life Management (G10 L3 command) Yes
    Screw Mapping Yes
    Professional Screen Designer (advanced G.U.I.) Yes
    - Screen Animation Control Yes
    - Screen Integrated Tool Table Control Yes
    - Screen Integrated Work Offset Control Yes
    - Screen Integrated gcode editor Yes
    - Screen Artsoft Wizard Package Integration Yes
    Macro B gcode Programming (#variables) Yes
    - User definable gcodes via marco calls Yes
    - Macro Calls: G65, G66, G66.1 Yes
    - gcode via marco call (custom G codes via macro B) Yes
    - mcode via macro call (custom M codes via macro B) Yes
    - mcode via sub code (custom M code via sup program) Yes
    - Conditional gcodes Yes
    - set VN call - define variable names Yes
    gcode Editor Included Yes
    Scripted M code (custom M code via LUA script) Yes Yes
    Variable Speed Spindle Yes Yes Yes
    Spindle Relay Yes Yes Yes
    Coolant relay Yes Yes Yes
    Mist Relay Yes Yes Yes
    Threading Yes Yes Yes
    Rigid Tapping Yes Yes Yes
    Single Block Yes Yes Yes
    Block Delete Yes Yes Yes
    Optional Stop Yes Yes Yes
    MACH CNC CONTROL SOFTWARE MAIN FEATURES AND VERSION DIFFERENCES
    Standard Version Features Mach3 Mach4 Hobby Mach4 Industrial
    MACH CNC CONTROL SOFTWARE MAIN FEATURES AND VERSION DIFFERENCES
    Cutter Comp Yes Yes Yes
    Fanuc Type C Cutter Comp Yes Yes
    Fixture Offsets Yes Yes Yes
    G51 Scaling Yes Yes Yes
    G92 Offsets Yes Yes Yes
    G52 Offsets Yes Yes Yes
    Event Driven Yes Yes
    Multi Line MDI Yes Yes
    Subs In MDI Yes Yes
    OpenGL Optimization Yes Yes
    Multi-platform OS Compatibility Option Yes Yes
    Online Support Yes Yes Yes
    Phone Support Option Available Yes
    Support Priority Yes
    Available to End Users as "Do-it-yourself" Yes Yes
    Summary - Mach3 versus Mach4 :
    Mach4 Hobby is the closest comparable version to Mach3, yet it is still much more advanced. The price point of these versions is nearly
    identical. Mach3 is very popular for hobby enthusiest and is used in highly modified form by some great OEM's. In general, Mach4 is more
    complex than Mach3 and follows cnc industry standards. Mach3 has many customizations to make it easier for hobby users, but can lead to
    difficulties if users plan to apply their knowledge to more advanced systems. Mach4 is built as a full featured cnc controller capable of high
    speed machining for servo and stepper systems. Mach3's feature set is complete, while Mach4's will continue to expand. If you are new to cnc,
    Artsoft highly recommends using and learning Mach4 even if it appears that Mach3's feature set will be adequate for your needs.

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    WHAT IS THE DIFFERENCE BETWEEN MACH3 AND MACH4?

  • WHAT'S THE DIFFERENCE BETWEEN PARALLEL BREAKOUT BOARD AND USB ITERFACE?

    The parallel (printer cable) port is uses the computer as its main source of pulse trains to operate the motor driver directly. Parallel ports are a direct connection from the processor commonly referred to as GPIO pins (General Purpose I/O pins) and provides a convenient and powerful way to interface with the computer. The parallel breakout board is included in those kits only to condition those signals for use with the drivers.

    The USB serves at the actual controller, sending the pulse trains, but the computer sends simple human readable instructions to the USB controller to tell the controller how to send pulses.

    The non-technical differences that may serve as the most important information to you is that the parallel configurations allow for a wider variety of industry standard software that can be used to control the cnc machine. The USB that we offer requires the operator to use a software called Planet-CNC software which is a very well made and feature full cnc control software.

    Additional Information:


    Additional Information:


    Additional Information:
    USB Motion controller breakout board work with planet cnc software?

    Click the link to add information to this solution:
    WHAT'S THE DIFFERENCE BETWEEN PARALLEL BREAKOUT BOARD AND USB ITERFACE?

  • WHAT THE DIFFERENCE BETWEEN 3 AXIS AND 5 CNC?

    3 axis machines cannot create undercuts in the part.

    These videos show the capabilities of 3 and 5 axis machining:

    3-axis CNC:

    &feature=fvwrel

    5-axis CNC:
    &feature=related

    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:


    Additional Information:

    Click the link to add information to this solution:
    WHAT THE DIFFERENCE BETWEEN 3 AXIS AND 5 CNC?

  • WHAT IS THE DIFFERENCE BETWEEN ROCK CRYSTAL ?

    The first number is the amount of chromium that is contained in the stainless, i.e., 18 is 18% chromium. The second number is the amount of nickel, i.e., 8 stands for 8% nickel. So 18/8 means that this stainless steel contains 18% chromium and 8% nickel. 18/10 is 18% chromium and 10% nickel. The higher the numbers the more corrosion resistant the material. 18/0 is a misleading designation. Both 18/8 and 18/10 contain nickel and are part of the grade family "300 series" stainless. 18/0 means that there is 18% chromium but zero nickel. When there is no nickel the stainless grade family is the "400 series". 400 series are not as corrosion resistant as the 300 series and are magnetic, where the 300 series are non-magnetic.

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    WHAT IS THE DIFFERENCE BETWEEN ROCK CRYSTAL ?

  • THERE ANY STANDARD FOR A DISTANCE BETWEEN CELLULAR BASE STATION AND RESIDENTIAL AREA?

    The two main constraints on siting cellular base stations near residential areas are government exposure limits and local zoning ordinances. Various governments have limits for human exposure to radiofrequency (RF) energy that must be complied with in the siting of cellular base stations and other transmitters. In the United States, the relevant limits are those of the Federal Communications Commission (FCC). Cellular base stations use low-powered transmitters, and RF signal levels are invariably below FCC limits at any distance more than a few feet from the antennas. Thus it is entirely feasible to locate cellular base stations on rooftops of apartment buildings and to locate communications towers within residential areas and indeed these are both common practices. Local zoning ordinances are a different story. Local governments commonly restrict the location of communications towers through zoning ordinances, and they may have provisions that restrict cellular base stations in residential districts. Local attorneys or government officials should be consulted for advice about local requirements, which vary greatly among jurisdictions. Kenneth R. Foster Professor, Department of Bioengineering University of Pennsylvania

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    THERE ANY STANDARD FOR A DISTANCE BETWEEN CELLULAR BASE STATION AND RESIDENTIAL AREA?

  • WHATISTHE DIFFERENCE WTIH THE PARALLEL BREAKOUT BOARD AND USB BOARD?

    The parallel is the most versatile breakout board we have and will work with most of the software out there, but many computers are not equipped with parallel connectors anymore. Parallel adapter cards are available if you don't have a parallel connection on your computer.

    The USB interface must be used only with the planet-cnc software, which is great software, but you are still limited to only that software application. This is actually the least expensive option unless you use linux and go with the above option.

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    WHATISTHE DIFFERENCE WTIH THE PARALLEL BREAKOUT BOARD AND USB BOARD?

  • What is the difference between the 3 Blacktooth laser packages offered? Specifically, one with/without a computer? Why do I need one? Also, is the $2100 assembled vs the $1700 which is not? What am I paying $400 more for?

    If you read the description the first uses a parallel interface for computer hookup. The second uses USB interface for computer hookup. The third utilizes an integrated computer which is built into the package thus you do not need an external computer.

    Click the link to add information to this solution:
    What is the difference between the 3 Blacktooth laser packages offered? Specifically, one with/without a computer? Why do I need one? Also, is the $2100 assembled vs the $1700 which is not? What am I paying $400 more for?

  • WHAT IS THE DIFFERENCE IN A 2.5 AXIS MACHINE?

    An axis is a direction of motion controlled by the CNC machine control. It can be linear (motion along a straight line) or circular (a rotary motion). The number of axes a machine has determines it's machining capabilities. A 2.5 axis machine really has three moving axes, but only two axes can move together (most machines sold today are full three axis machines). For machining centers, a three axis machine will have three linear axes. A four or five axis machine will have three linear axes as well as one or two rotary axes.

    Note that 2.5 versus 3 axis has yet another context. 2.5 axis machining requires that the machine have three axes, but only two axes must be moving simultaneously at any one time. (Simple operations, like drilling and most milling, fall into this category). On the other hand 3-axis machining requires that all three axes be moving at the same time (More complex operations, like the machining of sculptured surfaces required in molds and airfoils, fall into this category.)

    Additional Information:


    Additional Information:

    Click the link to add information to this solution:
    WHAT IS THE DIFFERENCE IN A 2.5 AXIS MACHINE?

  • I WOULD LIKE TO KNOW IF THERE IS A STORE OR SHOP WHERE CAN SEE THE PRODUCT AND BUY IT?

    If you are located near Houston, Texas area you can stop by our shop. If you are not near us, you can check in our forums, and see if you can find someone in your area that has one of our machines, and would be willing to let you come see it in action.

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    I WOULD LIKE TO KNOW IF THERE IS A STORE OR SHOP WHERE CAN SEE THE PRODUCT AND BUY IT?

  • IS THERE A WAY TO GET RID OF THE PARALLEL CABLE AND SOMEHOW USE USB ?

    If you select the Settings Page and select or tick Auto Limit Override - this will allow you to back off the switch.

    Additional Information:
    limit and home switch

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    IS THERE A WAY TO GET RID OF THE PARALLEL CABLE AND SOMEHOW USE USB ?

  • I AM PUTTING TOGETHER THE BLACKFOOT AND USING A PORTER CABLE ROUTER. CONFUSED ON HOW TO RELAY ROUTETR WITH USB BOARD. IS THERE ANOTHER SWITCH THAT GOES BETWEEN BOARD ROUTER SO PLANET CNC CAN TURN PERHAPS VACUUM OFF?

    We are currently working on a relay board that will connect to USB breakout board, and the router/spindle for both the on/off function. Unfortunately we still do not have it completed or ready to be placed on our website, but it is in the final stages of testing. Please check back regularly for updated stock!

    Here is a link to a tutorial for a DIY relay circuit:



    There is no vacuum control on the Planet-CNC program, however you could use the same concept of the router/spindle on/off using the relay circuit. Although you will have to use either the flood or mist function for the vacuum.

    Click the link to add information to this solution:
    I AM PUTTING TOGETHER THE BLACKFOOT AND USING A PORTER CABLE ROUTER. CONFUSED ON HOW TO RELAY ROUTETR WITH USB BOARD. IS THERE ANOTHER SWITCH THAT GOES BETWEEN BOARD ROUTER SO PLANET CNC CAN TURN PERHAPS VACUUM OFF?

  • WHAT COMMON BETWEEN KUTTY, SHANKAR, LAXMAN AND SUDHIR DAR?

    Drawing Cartoons

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    WHAT COMMON BETWEEN KUTTY, SHANKAR, LAXMAN AND SUDHIR DAR?

  • the bluechik - IS there a 3D Touch Scanning to scan in present made items ?

    Yes, you can use a touch probe with our machines as it is really independent of the machine structure, mechanical components and motion electronics, for the most part. We don't currently sell touch probes, however, but standard touch probes for CNC machines will work fine.

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    the bluechik - IS there a 3D Touch Scanning to scan in present made items ?

  • Can I use one motor drive 6A and conect 2 motor nema 24 425oz-in?, Can I do that??

    Connecting two motors to a single, larger current driver, is not recommended. Theoretically, this may not be an issue; however, problems could occur where one of the motors draw more current than the other due to some external forces or friction and one of the motors stalling as a result.

    If you need to have two motors turn in a synchronous way as a single axis, connect the two drivers to the same axis signal (the same step and direction pins from the breakout board).

    Click the link to add information to this solution:
    Can I use one motor drive 6A and conect 2 motor nema 24 425oz-in?, Can I do that??

  • Are there any videos detailing wiring of limit switches and stop button?

    This video may serve helpful on the homing and limit switches:
    https://www.buildyourcnc.com/PrimeronHomingandLimitSwitches.aspx

    I don't go into great detail on the wiring, however. If after you watch that video and you still need a video, please let me know and I will make a video on the wiring of limit switches and the E-stop button.

    Click the link to add information to this solution:
    Are there any videos detailing wiring of limit switches and stop button?

  • Is there a diagram or schematic showing which pin on the 3D printer driver is ABCD?

    You can find a diagram that describes the pin-out for the 2.5 am Driver that is intended for the 3D Printer Main Board, but can be used as a standalone driver as well.

    Additional Information:
    Where is the diagram located?

    Click the link to add information to this solution:
    Is there a diagram or schematic showing which pin on the 3D printer driver is ABCD?

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