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Summary of Contents for Cuttermasters Professional JXT
- Page 1 The CUTTERMASTER Professional Tool Grinder, JXT Operator’s Manual Cuttermasters Cuttermasters Cuttermasters Rev. 2020/10/19...
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Page 2: Table Of Contents
End Grinding Using 11V9C Wheel Face - Right ....20 End Gashing ............... 20 Appendix 1 End Mill Sharpening Guide, Wheel Types ........ 22 Base Exploded View ..............23 Motor Tower Diagram ..............24 Air Bearing Exploded View ............25 www.cuttermasters.com - Toll Free (800) 417 2171 Page 2... -
Page 3: Chapter 1 The Cuttermaster Professional Journeyman Jxt
Ogdensburg NY 13669 Canada U.S.A (800) 417-2171 (800) 417-2171 info@cuttermasters.com info@cuttermasters.com Copyright 2020 This document may not be reproduced in whole or in part without the express written permission of Toycen Industries www.cuttermasters.com - Toll Free (800) 417 2171 Page 3... - Page 4 Toycen Industries, by this advisement waives any and all responsibility for any real or alleged claims of health damage as the result of using their equipment(s) without heed to this warning. www.cuttermasters.com - Toll Free (800) 417 2171 Page 4...
- Page 5 Output 130-20 V DC Net Weight 210 lbs (98 Kg) Gross Weight 232lb (106Kg) Machine Dimensions Excluding Handwheels 21″ x 20″ x 21″ Note: This grinder plugs in to regular household AC current and converts to DC onboard. www.cuttermasters.com - Toll Free (800) 417 2171 Page 5...
- Page 6 2. Motor Lift Lever 3. Stylus 4. Indexing Collar 5. Front Collar 6. y-Axis Table Hand Wheel 7. x-Axis Table Hand Wheel 8. Air Spindle Pivot Base 9. Draw Tube 10. Quill, Spindle www.cuttermasters.com - Toll Free (800) 417 2171 Page 6...
- Page 7 Motor Vertical Lift Indexing Handle. When using the motor lift handle, if you notice that the motor isn’t returning consistently, try tightening the backlash compensation screw. www.cuttermasters.com - Toll Free (800) 417 2171 Page 7...
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Page 8: Journeyman Jxt Specifications, Overview And Theory
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Page 9: Set Up And Care For Your Jxt
A light colored back drop helps the operator locate the grinding wheel as it approaches the tool and also protects the ways. CM-10S Cabinet Base www.cuttermasters.com - Toll Free (800) 417 2171 Page 9... - Page 10 Using a 3/8 5C collet mount the 3/8 Half Pin in the air bearing to set the sty- lus height. The face points down, parallel with the x table top face. Raise the stylus to touch the face of the center finder and lock the nut at the stylus base. www.cuttermasters.com - Toll Free (800) 417 2171 Page 10...
- Page 11 P P P Micro Neck Reduction Weldon Set Screw Flats Chamfer Wheel T-Cutter Reamers Countersinks Taps Drills Annular Cutters Chamfer Mills Corner Prep Carbide Cut Off Face Wheel Table: Recommended Grinding Wheel Type by Operation www.cuttermasters.com - Toll Free (800) 417 2171 Page 11...
- Page 12 Dressing: Once the wheel has been trued, dressing brings the grit media proud above the resin substrate. Use an Aluminum Oxide dressing stick for resin bond wheels. Use a Silicon car- bide dressing stick for vitrified wheels. www.cuttermasters.com - Toll Free (800) 417 2171 Page 12...
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Page 13: Chapter 2 End Mill Grinding: The Basics Before You Start
If the end mill has centers, these can be used for concentric holding. If not, the tool is generally held by a collet at the shank end with a tooth rest set in a specific relation to the wheel and tool center. This tooth/tool rest is usually placed directly at the point of contact between the wheel and the cutter, minimizing vibration during the grinding process. 4-Flute Center Cutting End MIll www.cuttermasters.com - Toll Free (800) 417 2171 Page 13... - Page 14 One caution to be observed if single clearance is used, is that a very light finishing grind must be taken because of the longer line of contact between the wheel and the end mill. Heavy finishing cuts invite burning, cause accuracy to be sacrificed and can cause the diameter to be reduced more than necessary. Test Tools A grinding project is like all other operations in a machine shop, in that it may be unadvisable to take trial cuts on a finish product. For this reason it is good to have set up or test cutting tools kept aside to test angles and finishes prior to grinding the final product. www.cuttermasters.com - Toll Free (800) 417 2171 Page 14...
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Page 15: Organizing Your Grinding Project
Every material has an endurance limit. When a carbide cutter is too “fatigued” it will show in chipping and flaking at the cutting edges. This will be more apparent in the harder materials such as carbide. If the edges and the flute (rake) face are badly chipped, the cutter should be re-fluted to get into www.cuttermasters.com - Toll Free (800) 417 2171 Page 15... - Page 16 In this case, talk to your supervisor or the owner of the cutter before attempting to sharpen the tool. The best option might be to just return it to the person who ruined it, as is. www.cuttermasters.com - Toll Free (800) 417 2171 Page 16...
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Page 17: Chapter 3 End Mill Grinding Operations
Remove Quill and Clean with Acetone 4. Check Stylus Height. The stylus height should be set to the air bearing fixture (tool) center height. If it needs to be reset to this height, use the provided 3/8 center finder by mounting it in the air bearing with a 3/8” collet. The face points down, parallel with the x table top face. Raise the stylus to touch the face of the center finder and lock the stylus nut to set. www.cuttermasters.com - Toll Free (800) 417 2171 Page 17... - Page 18 In other words, so that the stylus is di- rectly in front of the edge of the highpoint of your grinding wheel edge. Keep about a 1/2” (10mm) dis- tance from it. You are now ready to grind your first Position Wheel and Stylus end mill. www.cuttermasters.com - Toll Free (800) 417 2171 Page 18...
- Page 19 Note: Grinding the ends. To grind the ends with the same set up, proceed to section 3.2. To grind the ends with the face of the wheel (necessary for 6-flute end mills, proceed to section 3.3 www.cuttermasters.com - Toll Free (800) 417 2171 Page 19...
- Page 20 4. Position the wheel and tool using the x,y tables and take first grind. Maneuver the grinding wheel End Grinding the Secondary with Side of Wheel with the y-axis handle so that the edge of the wheel www.cuttermasters.com - Toll Free (800) 417 2171 Page 20...
- Page 21 8°, and repeat the same procedure as before. 7. For 4-flute center cutting and 6-flute non center cut- ting end mills, the ends must be sharpened off of the face of the grinding wheel, instead of off the o.d.. Proceed to the following section, 3.3 for this operation. www.cuttermasters.com - Toll Free (800) 417 2171 Page 21...
- Page 22 2. Set the air bearing. Repeat the same procedure as from chapter 3.3 steps 2 and 3; allowing for end dish, setting the flutes square to the table, setting the indexing ring. 3. Set motor tower. Set the motor tower angle to -7° and the height to www.cuttermasters.com - Toll Free (800) 417 2171 Page 22...
- Page 23 2. Set the air bearing. Repeat the same procedure as from chapter 3.3 steps 2 and 3; allowing for end dish, setting the flutes square to the table, setting the indexing ring. 3. Set motor tower. Set the motor tower angle to -7° and the height to End Grinding the Secondary with Face of Wheel www.cuttermasters.com - Toll Free (800) 417 2171 Page 23...
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Page 24: End Gashing
When plunging the tool, proceed until the wheel is past the center of the tool by 0.020”. Grinding the Gash with a 1A1 Wheel End gash with a 11V9C wheel. Grinding the Gash with a 11V9C Wheel www.cuttermasters.com - Toll Free (800) 417 2171 Page 24... -
Page 25: Appendix
CUTTERMASTER Professional JXT User’s Manual Appendix 1: End Mill Resharpening Guide and Common Wheel Shapes www.cuttermasters.com - Toll Free (800) 417 2171 Page 25... -
Page 26: Base Exploded View
CUTTERMASTER Professional JXT User’s Manual Appendix 2: Base Exploded View CUTTERMASTER Base www.cuttermasters.com - Toll Free (800) 417 2171 Page 26... -
Page 27: Air Bearing Exploded View
.XX = ± .01 .X = ± 0.1° SIZE DWG NAME grinding finishes .XXX = ± .005 2020 SINGLE UTS Front Side THIRD ANGLE SURFACE FINISH: SCALE: SHEET DO NOT SCALE DRAWING spindle.JPG www.cuttermasters.com - Toll Free (800) 417 2171 Page 27...