Simple MicroScribe test
Contents
1. Excel and moved the MicroScribe Stylus to the point in our piece of plastic then clicked the hand pager button once Then returned the Stylus tip back to its Stylus tip holder Then we picked the Stylus up again and repeated the same process to measure another point Note you can change the angle that you place the tip in the hole but as it is only plastic you may get some variation Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Here are our results after 12 measurements l f E4 Microsoft Excel Book1 Jame File Edit View Insert Format Tools Data Window Help 7 747 He 430 446 7775 ane X 46 0273 Y 58 1066 Z 212 0784 430 484 7 726 Format Excel Tip Default 430 463 7 724 430 530 7 061 430 462 7 760 430 454 7 775 430 537 7 769 430 453 7 004 430 487 7 066 430 682 7 045 430 574 7 974 Obviously you will se some deviation in the numbers as this is not a precise test but it is a good indication that your MicroScibe is working correctly Checking a known distance MUS Here we can use our steel rule although anything with known increments will be sufficient to give you an indication that the MicroScribe is working gt J Y Direction x Directiotiees S Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk First you need to set a Custom Origin Reference Frame for where you want to me2. SZN N pam XS Simple MicroScribe tests All users have great success with their MicroScribe then one day there is a panic as the dimensions do not seem to be right or it wont connect This is usually down to the fact you have not made a good connection set the HOME correctly or you have forgot to start with the standard tip etc or you have dropped it or knocked it over MicroScribes do have a reputation for just working forever Here are a couple of things to check by going back to basics If these things do not seem to resolve your problem then we can probably help if you call us or if all else fails RevWare are there to help as well http www revware net First make sure the connection with your PC is OK USB is hard to faulter but you may have reformatted your hard drive or deleted the driver so it is worth checking by installing the MicroScribe Utlitiy Software MUS We have a copy here http www patrick thorn com docs scan MUS 5 1 zi Note you may have to Uninstall first before installing again With G series MicroScribes the standard USB cable should work Ok but we do not recommend using a USB extension hub as there maybe not enough power to drive the MicroScribe without loosing positional data M series MicroScribes require both the power supply and the USB cable without an extension hub Serial connection of G2 and older 3D red MicroScribes need to have both the power supply and serial RS232 cable co
3. asure from This is described in the MUS Help is you are unsure of the procedure We used the points on the rule as shown in the previous diagram w MicroScribe Utility Software Configuration Format Strings Reference Frame Scan Planes Auto Scan M C WorldFrame Custom Custom Reference Frame Press the right pedal or hand switch to select points that define the reference frame oiin Xina Ypa 2 rae af X Direction X 113 87 Y 367 91 2 154 af Direction x 106 56 298 23 z 55 Next we used Excel again and moved the Microscribe tip to positions along the steel rule and clicked each point This made up picture gives you an idea Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Here are our results Considering we are trying to align to the marks on the rule we get a clear indication that the X values are recording every 10mm Fd Microsoft Excel Book1 File Edit View Insert Format Tools Data Window Help jek e 4Ar sBadio 19 0446 29 7765 39 5007 49 6772 59 7031 0 0926 0 2604 0 1249 0 2276 0 3569 0 1295 0 1431 0 0367 0 0496 0 0441 0 0571 0 0844 0 0699 0 1002 Y MicroScribe Utility Software x k o 3 AutoScan Scan Planes MV On Top igi X 225 7771 Y 101 3321 Z 213 5459 Format E xcel Tip Default As mentioned all along these are simple test to check the MicroScribe is functioning T
4. here are not a substitute for the precision calibration equipment that RevWare use what setting and calibrating each unit at the time of manufacture If you have checked you MicroScribe is working OK but it is not working with some other third party software please check the set up procedure they provided with the software Should you need to send a MicroScribe back to RevWare please contact then first as they will not accept returned items without a valid RMA reference number Also in any communication please include the Serial number of your MicroScribe which is on the base of the unit Revware Systems Inc 2355 Paragon Drive Suite E San Jose California CA 95131 USA www revware net Support revware net Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk
5. ial Number Wrist Roll Wrist Pitch Degrees of Freedom O DLL Version Stylus Roll Firmware Version Connection Status Stylus Position and Orientation Protocol O Vector O Vector Button Status Button 1 Button 2 O VYector 2 Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Press the HOME button on the MicroScribe so the red light turns to green Now on the MicroScribe Test Tool dialog click on the Connect button The window should populate with numbers similar to this example Si Immersion MicroScribe Test Tool E x Joint ngles Product Information Shoulder Yaw MicroScribe G2Lx 63578 Product Name Model Name Shoulder Pitch Seral Number Elbow Wrist Roll Degrees of Freedom 5 DLL Version Pee ae Tig 03 17 Wrist Pitch Firmware Version Stylus Roll Connection Status Connected Stylus Position and Orientation Protocol USB 2 2 70601 Vectors 0 00671226 Y 1 11834 Vector 0 00017835 Button Status Button 1 UP Button 2 UP m 0 94943 Vectorz 0 999976 2 Product information This is the information stored on your MicroScribe and is self explanatory Button Status If you are using the Hand Pager of Twin foot pedal when clicking or pressing the left or right switch this will be shown as Button 1 or 2 with UP o
6. it was calibrated with On your original MicroScribe disk there is a MSTest exe utility for MicroSoft Windows 32 bit If you cannot find it we have a copy here htto www patrick thorn com docs scan MSTest zi Download it and UnZip it to a folder There are 2 parts MSTest exe and Armdll32 3 armadll32 dll 136KB Application Extension BY msTest exe 36 KB Application Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Connect your MicroScribe to your PC Make sure you have the Stylus Standard Tip installed firmly and the Stylus Holder is clean from debris Place the Stylus Standard Tip into the Stylus Holder Make sure there is no debris between the counter balance and the underneath of the Stylus holder block Position the MicroScribe in a position similar as shown in the MicroScribe Anatomy illustration Launch the MSTest exe and it will look like this ge MSTEST Fie Edit View Favorites Tools Help sack gt Bi pe Search Folders la x XxX id HA Address jo C Documents and Settings PatrickiMy Documents Microscribe bits MSTEST Name a Size Date Modified B armadll32 dil 136KB Application Extension 02 12 2004 12 36 BY mstest exe 36 KB Application 26 06 2002 11 11 Immersion MicroScribe Test Tool os xi Joint Angles Product Information Shoulder Yaw Product Name Shoulder Pitch Model Name Elbow Ser
7. nnected as no power is derived from the RS232 lead Full details are shown in the MicroScribe User manual provided with each unit In the notes that follow these are provided as a simple guide to help you understand if your MicroScribe is working OK They are not a method of confirming any accuracy or calibration test To help understand the notes we will refer to the MicroScribe parts as shown in the following MicroScribe Anatomy illustration Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk MicroScribe anatomy www microscrbe digitisers co uk WRIST ASSEMBLY LOWER ARM ELBOW ASSEMBLY Wrist Roll Joint SEGMENT Lower Elbow Housing Wrist Housing a Elbow Joint Wrist Pitch Joint a Upper Elbow Housing UPPER ARM SEGMENT STYLUS ASSEMBLY Stylus Body Stylus End Cap Stylus Tip Stylus Holder SHOULDER ASSEMBLY Shoulder Housing Shoulder Joint Shoulder Upright Tombstone Counterweight BASE ASSEMBLY Base Joint Base Housing MicroSoribe G2 wW This part is replaceable by the end user with the following tips G2 Standard Ball or Fine Needle MX Ball and Fine tips Not all ather parts are factory fitted and recalibrated at extra cost to the user Checking all the axis are working MSTest Before testing for positional repeatability check you have the correct stylus tip that was originally provided with the MicroScribe when new as this is what the un
8. r DOWN So you can see if your switch is working Stylus Position and Orientation These numbers flicker about as the position is being constantly calculated for the position of the Stylus and the vector direction it is pointing If you move the MicroScribe these will change even the slightest breath or vibration will see the numbers change The units are in inches and are here so you can see movement not to measure with Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Joint Angles These values are the encoder positions shown as angles If you carefully try to hold the parts you do not want to move you can then check and see each part is functioning The diagram below indicates which part is which As the MicroScribe we have used here is a 5 degrees of freedom then the Stylus Roll here is set to O If you have a 6 axis MicroScribe and a MicroScan3D laser then it is best to take the MicroScan3D unit off first Wrist Roll sakes Stylus Roll 6 axis i Wrist Pitch Yaw Note then angle positions have a reference point so you will see some angles count up or down say to zero then roll over to anew number This all depends on where the MicroScribe is when you start the test We are not checking the exact angles just to see they all move If allthe angles seem to move OK it should be ready to continue work We have another test for you to try next but should one of
9. the joint angles not be working at all then you will not get correct coordinate results and you will have to return your unit to RevWare for servicing Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Simple test for checking the approximate repeatability MUS Now to check the MicroScribe repeats to a known position you need to have a point to measure Also you need to be careful not to move the MicroScibe base when doing this Here we have taken a piece of plastic and made a small indentation with a pointed instrument NOT the MicroScribe We have then double sided taped this to the desk along with a steel rule We have put peincil lines so you can see it Make sure you MicroScibe is position so you can reach the plastic hole easily Place the tip back in the Stylus tip holder and Home the MicroScribe Green light ON Notes provided by Patrick Thorn amp Co www patrick thorn co uk info patrick thorn co uk Launch the MicroScribe Utility MUS from the Start menu gt Programs gt Immersion If its connected you will see X Y Z values and they will change if you move the MicroScribe Ww MicroScribe Utility Software ky o 2 uto Scan Scan Planes M On Top Ogi X 732712 Y 128630 Z 212 0716 Format E cel Tip Default Now we are going to Excel or Notepad to record some numbers So click the format string button and choose the application you will use wv We used
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