Titanium Euro with fins

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btboone

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Here's another titanium pen based on the 7mm Euro guts. It has black titanium kit parts and has a blue to seafoam anodizing fade. The outside is a brushed finish. It's actually not uncomfortable to write with. I had to tweak the program a bit since the last one I made had a concentricity issue where the drill walked a little in the deep hole. I solved the issue by drilling the stock from both ends. This one was made for an order. I have a couple other fairly cool wood pens in the works that were meant for Provo, but I haven't been able to work on them lately.

20056944054_Fins2.jpg
 
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bud duffy

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Bruce that is one very cool pen!! What kind of price point do you have on that one if you dont mind my asking, not that i could afford one like that right now? Bud
 

nilsatcraft

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I've been thumbing through these higher end pen catalogs and yours would fit right in- but it's even better in many ways. I'm <b>totally</b> impressed with the pens you come up with. Great job!
 

btboone

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Thanks guys. This one wasn't that groundbreaking or anything, but I just wanted to show that I'm still alive and kicking. I haven't been able to do many pens lately, so I need to take pics of the few I do. [:)] This one sells for $195, which is actually a relative bargain because it took most of the night to produce it. As you can see, I posted at 12:41 am. Edward, I make it on a CNC lathe. I have a picture of it in a thread where I talked about my titanium twist fountain pen. You could do a search by member and look for the long thread.
 

JimGo

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Bruce, $195 is a very nice price for that pen. If you decide to make some more, we have some high-end stationery shops around here that might be interested!
 

btboone

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I appreciate the kudos guys. Jim, I could make more of those with little problem. The trick is to make them while I still have it figured out. The time and effort come in when I have to change around the setup and try to figure out what I've done before. As an example, when I was changing out my tools, I was indexing the turret and watching the tool I wanted coming around. Suddenly the turret stopped and an error message popped up. It had a chuck interference error. I looked down and a carbide drill bit had indexed right between the center of the chuck jaws! [:0] Had the spindle been rotated a couple degrees either way, it would have snapped off the expensive drill very easily. This kind of stuff only happens when I set up to machine something new, so I need to set aside a lot of time and try to document all the little things that I need to do in order to run a part and not have the mishaps like that. Something simple like the drill wobble issue could have easily been a show stopper on this pen, and it took quite a bunch of thinking and effort to overcome the issue. I also killed two grooving inserts dialing in the right feeds and speeds. [B)] Now that I finally have it all working OK, the next ones won't be as difficult and should work the first time out.
 

btboone

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Hi Rick, I run the titanium slow. It can certainly be run a lot faster but tools tend to die a lot quicker. It doesn't make sense to ruin a tool insert and an expensive part to save a little time unless the machine time gets to be the major holdup. (Selling them that fast seems to be the holdup at this point.) [:)] I now have the long part drilled from both sides. Cycle time is probably around 4 minutes for the first side and 8 minutes for the second side with the outside turning and grooves. The small side probably takes something like 10 minutes. There is a little hand lathe work to do to file the fins to take off the sharp edges. The anodizing is around 5 minutes with lathe cleanup on the outer surface. Then there is the pen assembly stuff. So all combined, if I were to push on efficiency and have everything dialed in, I should be able to do them in under an hour complete. The time would go down if I were to do batches of parts, say 5 side 1's before changing over to side 2. This gets up to more the productivity rate I achieve with the rings.
 

JimGo

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Bruce,
Should you decide to move into the "limited edition" pen arena, please let me know. I'll give you the names of some local stores that sell some very nice pens.
 
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