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techtalk:ref:tools133 [2018/09/18 05:03] hippysmack [Origin of the Grindlock Tool] |
techtalk:ref:tools133 [2018/09/18 12:54] hippysmack [Origin of the Grindlock Tool] |
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| - | ==== Origin of the Grindlock Tool ==== | + | Read the [[techtalk:ref:tools150|Origin of the Grindlock Tool here]] |
| - | From XLFORUM member, " ~Grind~ " ((http://xlforum.net/forums/showthread.php?t=1448694)) \\ | + | |
| - | <blockquote> (I) broke a tooth off the pinion gear upon applying 70 ft./lbs. of torque to the pinion gear nut per the Zipper’s cam installation instructions. ((photos by ~Grind~ of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=1448694))</blockquote> | + | |
| - | |{{:techtalk:ref:tools:pinion_gear_lock_by_grind_.jpg?direct&300|}}|{{:techtalk:ref:tools:pinion_gear_damage_by_grind_.jpg?direct&300|}}| | + | |
| - | <blockquote>I torqued the pinion gear to 70 ft. lbs. using a tool I made just for this purpose (below). \\ I had another friend of mine scribe "HAMMER PERFORMANCE" on it and then sent it to Hammer Dan as a token of my appreciation for all of his help. ((photos by ~Grind~ of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=1448694)) </blockquote> | ||
| - | |{{:techtalk:ref:tools:original_grindlock_tool_1_by_grind_.jpg?direct&200|}}|{{:techtalk:ref:tools:original_grindlock_tool_2_by_grind_.jpg?direct&200|}}| | ||
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| - | The folks at Hammer Performance worked out the bugs on a CNC lathe and named it the "Grindlock 2000" (homage to the creater, ~Grind~). ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841)) \\ | ||
| - | It is machined out of 6061 T6 billet aluminum. The Grindlock 91-99 was soon to follow. \\ | ||
| - | It holds the pinion gear and shaft securely while you loosen or tighten the pinion nut, without transmitting the torque through the flywheel assembly. \\ | ||
| - | This is critical, because applying torque through the flywheel assembly can easily knock it out of true, necessitating a full tear down to fix. ((photos by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1609924)) | ||
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| - | |{{:techtalk:ref:tools:grindlock_2000_pic_1_by_aswracing_of_the_xlforum.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_2_by_aswracing_of_the_xlforum.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_3_by_aswracing_of_the_xlforum.jpg?direct&300|}}| | ||
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| - | Note the tips of the teeth are cut down. | ||
| - | If the point on the nut happens to line up to the valley between two teeth on the gear, \\ | ||
| - | You need to still be able to get the tool on. ((http://xlforum.net/forums/showthread.php?t=1618841&page=4)) \\ | ||
| - | The tool slides over the gear, it doesn't slide in from the side. \\ | ||
| |The Grindlock Pinion Shaft Locking Tool engages for \\ the full depth of the pinion gear for max. strength. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841&page=4))|Due to a change in the pinion gear in 2000, there are 2 different versions of this tool: \\ 1. (91-99) year models & 2. (2000 to present) year models ((Hammer Performance http://www.hammerperf.com/xlvalvetrain.shtml#grindlock)) || | |The Grindlock Pinion Shaft Locking Tool engages for \\ the full depth of the pinion gear for max. strength. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841&page=4))|Due to a change in the pinion gear in 2000, there are 2 different versions of this tool: \\ 1. (91-99) year models & 2. (2000 to present) year models ((Hammer Performance http://www.hammerperf.com/xlvalvetrain.shtml#grindlock)) || | ||
| |{{:techtalk:ref:tools:grindlock_2000_pic_21_by_aswracing.jpg?direct&300|}}|{{techtalk:ref:tools:grindlock_tool_2_by_hippysmack.jpg?direct&300|}}|{{techtalk:ref:tools:grindlock_tool_by_aswracing.jpg?direct&300|}}| | |{{:techtalk:ref:tools:grindlock_2000_pic_21_by_aswracing.jpg?direct&300|}}|{{techtalk:ref:tools:grindlock_tool_2_by_hippysmack.jpg?direct&300|}}|{{techtalk:ref:tools:grindlock_tool_by_aswracing.jpg?direct&300|}}| | ||
| ^ Grindlock 91-99 & Grindlock 2000 \\ (designed by XLFORUM member, "~Grind~" and Built by Hammer Performance ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841)). ((Left photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841&page=4)) ((Middle photo by Hippysmack)) ((Right photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1920827&highlight=pinion+gear+locking+tool)) ^^^ | ^ Grindlock 91-99 & Grindlock 2000 \\ (designed by XLFORUM member, "~Grind~" and Built by Hammer Performance ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841)). ((Left photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1618841&page=4)) ((Middle photo by Hippysmack)) ((Right photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1920827&highlight=pinion+gear+locking+tool)) ^^^ | ||
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| - | **How it's made**: \\ | ||
| - | Article by aswracing of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=1609924)) ((http://xlforum.net/forums/showthread.php?t=1618841)) ... and Hammer Performance ((http://www.hammerperf.com/)) \\ | ||
| - | (click on a pic to enlarge) \\ | ||
| - | The tool is CNC made with CAD/CAM software. \\ | ||
| - | |||
| - | |Grindlock 2000 \\ This is the first tool off the production line.|Grindlock 91-99 \\ This one followed shortly after| | ||
| - | |{{:techtalk:ref:tools:grindlock_2000_pic_4_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_20_by_aswracing.jpg?direct&300|}}| | ||
| - | |||
| - | **Step 1** \\ | ||
| - | It starts with a slab of aluminum clamped in the step jaws of a vise. \\ | ||
| - | The back side is cut with mainly flat end mills and some chamfering with ball mills. \\ | ||
| - | Note that the upper left and lower right pieces have a hole in them. \\ | ||
| - | This hole doesn't go all the way through. \\ | ||
| - | It's used for alignment to the dowels in the fixture jig. \\ | ||
| - | |{{:techtalk:ref:tools:grindlock_2000_pic_14_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_22_by_aswracing.jpg?direct&300|}}| | ||
| - | |||
| - | **Step 2** \\ | ||
| - | The material is flipped over and clamped to the protruding portion of the pieces cut in step 1. \\ | ||
| - | Holes are cut and counter-bored with small end mills (a 3/16" for the hole and a 1/4" for the counter-bore). \\ | ||
| - | |{{:techtalk:ref:tools:grindlock_2000_pic_5_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_6_by_aswracing.jpg?direct&300|}}| | ||
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| - | This jig was made to allow each tool to be cut from the material block. \\ | ||
| - | Threads are tapped into the fixture and it will bolt to the material block with 18 screws (9 blocks with 2 bolts each). \\ | ||
| - | It's got protrusions to support each block (there's a step in the back of each) and dowels in the corners. \\ | ||
| - | It's very important to maintain proper registration and the dowels work very well. | ||
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| - | |{{:techtalk:ref:tools:grindlock_2000_pic_7_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_8_by_aswracing.jpg?direct&300|}}| | ||
| - | |||
| - | **Step 3** \\ | ||
| - | Each tool is cut out of the material block, engraved and the pieces are faced off (clean straight ends). \\ | ||
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| - | |{{:techtalk:ref:tools:grindlock_2000_pic_9_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_10_by_aswracing.jpg?direct&300|}}| | ||
| - | |||
| - | **Step 4** | ||
| - | The teeth are cut next. \\ | ||
| - | This requires another jig to hold the tools (3 at a time) for the tooth cuts. \\ | ||
| - | It sits on the face of the rotary table. \\ | ||
| - | Alignment and registration is provided by both a dowel and also by a notch on the back side that you can't see. \\ | ||
| - | The slots are at a 45° angle and are very precisely cut to provide registration to the blocks.\\ | ||
| - | |||
| - | The cutter used is a carbide burr,straight 20 degree included angle. \\ | ||
| - | It has pretty fine serrations for cutting steel and doesn't seem to plug up while cutting (.010" per pass).\\ | ||
| - | The CAD/CAM has a lot of advantages in terms of being able to; \\ | ||
| - | A). Backplot & simulate to spot problems. \\ | ||
| - | B). Easily adjust things and adapt and make changes. \\ | ||
| - | Plus when doing rotary work it solves a whole lot of the math for you. \\ | ||
| - | The picture below and to the right is a backplot of the tooth cuts. \\ | ||
| - | Note how the tool is at an angle. It simulates the rotary. \\ | ||
| - | |{{:techtalk:ref:tools:grindlock_2000_pic_11_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_12_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_16_by_aswracing.jpg?direct&300|}}| | ||
| - | |||
| - | The table turns to one angle and cuts one tooth on each block. | ||
| - | Then the table turns to another angle and cuts one tooth on each block, etc. \\ | ||
| - | The cutter's shape is not an exact match for the tooth. | ||
| - | But, two passes are made at each depth (each at a slightly different "Y" location ... just a few thou apart). \\ | ||
| - | This allows precise control of the tooth fit by varying this distance between the two parallel cuts. \\ | ||
| - | That way, the tool fits just right over the pinion gear (not too tightly or too loosely).\\ | ||
| - | |||
| - | |{{:techtalk:ref:tools:grindlock_2000_pic_13_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_15_by_aswracing.jpg?direct&300|}}| | ||
| - | |||
| - | Here's what they look like when they're all done being cut. \\ | ||
| - | The very last tool path goes in and knocks down the very tip of each tooth. \\ | ||
| - | This is necessary because if you don't do it, the tip of the tooth hangs up on the pinion nut. \\ | ||
| - | Next, to de-burr the teeth at each end with a small scotchbrite pad on an air operated die grinder. \\ | ||
| - | |{{:techtalk:ref:tools:grindlock_2000_pic_17_by_aswracing.jpg?direct&300|}}|{{:techtalk:ref:tools:grindlock_2000_pic_18_by_aswracing.jpg?direct&300|}}| | ||
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