tminus3

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!

Phatkat

iTrader: (14)

Where at? I'm just out of tech school( NOOB, I know ) in Topeka KS. I was top 3 in the class though.

Phatkat

iTrader: (14)

Not a problem, I hate when I have things I can't figure out.

mtc3od

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

fatdoggy

mtc3od - The cone cutting is from the blocks not being aligned properly.

mtc3od

how do you make sure that they are aligned properly?

PitCrew

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.

I did my apprenticeship for Hansen Machine Corp, which later became Primus International. I am pretty sure they have a shop in KS.

tminus3

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?

kartermdb

iTrader: (15)

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

tminus3

I'm using the V Blocks.

Phatkat

iTrader: (14)

I haven't heard of them, but Kansas has alot of ground I haven't covered.

primusblowsgoat

iTrader: (14)

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?

PitCrew

No door locks.

airplane parts.

I'm Not machining anymore right now.