07-10-2013, 09:55 PM
Last night I took a few minutes (literally) to find a 1" 5C collet, snug up the part in the spindexer and mill the hex. No CNC ops required for this. I used a 1/2" 3-flute YG (brand) solid carbide TiAlN-coated end mill, 1800rpm and fed by hand.
![[Image: IMG_20130710_182636_752-r_zps8c47042b.jpg]](http://img.photobucket.com/albums/v466/kenm10759/Dads%20shop/IMG_20130710_182636_752-r_zps8c47042b.jpg)
No, I didn't hit the indexing wheel on the spindexer, my dad admitted to doing that. I forgive him.
Tonight, I went over to the shop and put the part in a vise to mill the recess on the back and drill the pin holes. Man, what a joy it is to just punch a couple of buttons and get the job done!
Here you can see I've roughed out the recess using a DataFlute 3/8" TiAlN-coated 4-flute solid carbide end mill. The tool you see is a heavy metal (high tungsten content) bull nose milling cutter that a friend handed me a few years ago. This was my first opportunity to use it. I think it might be a Widia brand, not sure. I also don't know the maker, grade, chipbreaker or coating of the inserts. I had to play it safe and ran at 294sfm (1800 rpm) and 8 inches per minute for a .0015" per tooth feed rate.
![[Image: IMG_1889-r_zps19c52be0.jpg]](http://img.photobucket.com/albums/v466/kenm10759/Dads%20shop/IMG_1889-r_zps19c52be0.jpg)
Here's the bull nose cutter in action:
After the recess was complete, I used the "Bolt Circle" function on the Prototrak Plus control to spot and drill the six holes for pins. I had great fun tonight! All that remains is to rough mill the square drive, file the corners square, make the pins and pound them in.
Perhaps tomorrow, probably the weekend as my brother arrives from NC (again) tomorrow.
No, I didn't hit the indexing wheel on the spindexer, my dad admitted to doing that. I forgive him.
Tonight, I went over to the shop and put the part in a vise to mill the recess on the back and drill the pin holes. Man, what a joy it is to just punch a couple of buttons and get the job done!
Here you can see I've roughed out the recess using a DataFlute 3/8" TiAlN-coated 4-flute solid carbide end mill. The tool you see is a heavy metal (high tungsten content) bull nose milling cutter that a friend handed me a few years ago. This was my first opportunity to use it. I think it might be a Widia brand, not sure. I also don't know the maker, grade, chipbreaker or coating of the inserts. I had to play it safe and ran at 294sfm (1800 rpm) and 8 inches per minute for a .0015" per tooth feed rate.
Here's the bull nose cutter in action:
After the recess was complete, I used the "Bolt Circle" function on the Prototrak Plus control to spot and drill the six holes for pins. I had great fun tonight! All that remains is to rough mill the square drive, file the corners square, make the pins and pound them in.
Perhaps tomorrow, probably the weekend as my brother arrives from NC (again) tomorrow.