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Old 04-04-2005, 01:16 PM   #16
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Oh yikes..I might have been spinning this thing the wrong way. Ok let me try that now. I am getting so much help here this is awesome! Thanks all of you!
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Old 04-04-2005, 01:21 PM   #17
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Quote:
Originally posted by PitCrew
Yea, I am a machinist too. Did the 4 year apprenticeship.

Where at? I'm just out of tech school( NOOB, I know ) in Topeka KS. I was top 3 in the class though.
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Old 04-04-2005, 01:23 PM   #18
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Quote:
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Thanks all of you!

Not a problem, I hate when I have things I can't figure out.
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Old 04-04-2005, 01:35 PM   #19
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Ok, now that someone else is having a problem....

My lathe cuts the comm in a coned fashion. I think that this comes from the two set screws underneath the nob that sets the depth. I tried fixing it by tightening, and loosening to find the right amount but it was either too loose (upper part and bit would vibrate) or too tight and I had a hard time getting the bit to slide on the screw.

Any suggestions would be helpful
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Old 04-04-2005, 01:39 PM   #20
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mtc3od - The cone cutting is from the blocks not being aligned properly.
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Old 04-04-2005, 02:51 PM   #21
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how do you make sure that they are aligned properly?
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Old 04-04-2005, 04:16 PM   #22
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Depends how much cone its making.

If its not too much (i get this sometimes) its probably from making a "finish" pass back across the comm. Otherwise you'll have to have somebody indicate a shaft to the guide ways.

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Where at? I'm just out of tech school( NOOB, I know ) in Topeka KS. I was top 3 in the class though
I did my apprenticeship for Hansen Machine Corp, which later became Primus International. I am pretty sure they have a shop in KS.
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Old 04-04-2005, 07:58 PM   #23
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ok guys, I just did a bunch of cuts with different parameters and basically the best cut I got was with the following settings:

- motor spinning away from me (sounds wrong but its kinda working)
- motor running at 4.0 volts (a stock motors at 4.0 volts is FAST)
- single directional cut

the best I could do is 6.2 Amps @ 2 volts...is this any good..or should I be able to get better?
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Old 04-04-2005, 08:38 PM   #24
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are you using the V blocks or the bearings? i found that the bearings on my trinity lathe really hurt the finish, i switched to v blocks and it cuts good

how many amps the motor pulls really depends on the motor itsself. i have stock motors that pull anywhere from 5 to 10 amps at 2 volts and i havent really noticed that amps relates to it being fast on the track, its all how u gear it
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Old 04-04-2005, 09:12 PM   #25
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I'm using the V Blocks.
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Old 04-05-2005, 08:03 AM   #26
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Quote:
Originally posted by PitCrew
I did my apprenticeship for Hansen Machine Corp, which later became Primus International. I am pretty sure they have a shop in KS.
I haven't heard of them, but Kansas has alot of ground I haven't covered.
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Old 04-05-2005, 08:19 AM   #27
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primus is a good band

theres a building with a big sign that says primus on it by my parents house always wondered what it was.

in high school all the door locks said primus on them, does your machine shop make door locks?
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Old 04-05-2005, 11:47 AM   #28
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No door locks.

airplane parts.

I'm Not machining anymore right now.
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