Accuracy report on my Harbor Freight Sieg X3

[rashid11]

After building a bench and lifting the mill onto it, I got to
accuracy measurements today.


A) .0001 (tens) indicator, mag mounted to table, against exterior of spindle

NO READING. 0 . Yes, I quad-checked I had contact and no stuck
indicator

B) .0005 (5 tens) indicator, mounted in the spindle, lowered for the contact point to contact table. Eliminated cosine err as much as I could. Full motion in X.

NO READING. 0 . Yes, I quad-checked I had contact and no stuck
indicator . Didn't do Y .

C) same, mounted in the spindle, ~6" sweep of the table. I could not lower
the indicator for the contact to touch the table, so I used 123 block on the
table ($5 variety). I got may be .0002 (2 tenths) needle motion, but I think it is the block .

Plowed through some 6061 with 3/4 4Fl EM, @ max rpm. It cuts to about .300
DOC, full width. The motor clearly loads up, but the mill is rock solid. I think
it can take 2HP (3Phase + VFD or straight DC, assuming you can find honestly-rated 2 HP DC motor for less than what I paid for the mill). I never hog metal like that anyway, but it is nice to test the limits.


I am in mill heaven ! Long live Harbor Freight and PROC.

[Rally]

Get a clue and learn how to machine!

[kentsui]

Good for you rashid11. Hope it works out well for you. Sounds better than I would have thought.

[Redline]

RALLY Are you always so negative!




Get a clue and learn how to machine!
Now is that anyway to act!

[higgrobot]

Rashid, did you try that cut in low range? just curious if you'd be more productive. Also, a 2 flute and cutting oil would probably get better results.

[Rally]

RALLY Are you always so negative!




Get a clue and learn how to machine!
Now is that anyway to act!

Well, I guess that was a I'm tired type of answer and not good but come on who takes .300 and boges the motor on a new mill (I wonder what names the spindle bearings was calling him).

[Rally]

rashid11, Sorry about that harch comment, but if you're really looking to check something use the machine for a few weeks then set up Indicators on both X and Y and see if the machine will repeat. If you know what that means!
Here is a note on the side, Steppers will loose steps if they are being pushed to hard so I would suggest you take it easy on the plunges and up your feeds.
PS: My Wife also thinks that I'm a smart Ass!

[higgrobot]

..but come on who takes .300 and boges the motor on a new mill (I wonder what names the spindle bearings was calling him).

He said it "loads up" he never said it "boges", I think you were meaning Bogs. And I've never heard spindle bearings say anything? you need some sleep.

A 0.3 DOC in Aluminium with a 0.75" 4 Flute End Mill on a machine that is rated to take 1" end mills is not over doing anything. I calculated his cut to under 1hp or ~734Watts @ 0.002" per tooth/rpm, far from maxing the motor out, i'd do the same.

[Redline]

Ya what he said, go take a nap Rally

[Ninhil]

I'm interested to know how much the final cost to you was over at harbor freight.

It seems Grizzly sells them for $1050 with shipping.


Did you use the harbor freight 20% off coupon? I am really in need of one, so If anybody has it and isn't going to use it, could you send me a PM please?

-Brandon

[Rally]

He said it "loads up" he never said it "boges", I think you were meaning Bogs. And I've never heard spindle bearings say anything? you need some sleep.

A 0.3 DOC in Aluminium with a 0.75" 4 Flute End Mill on a machine that is rated to take 1" end mills is not over doing anything. I calculated his cut to under 1hp or ~734Watts @ 0.002" per tooth/rpm, far from maxing the motor out, i'd do the same.

I bet you need a Calculator to find your way to the grocery store!

[phantomcow2]

Those #'s are very consistent compared to what I found with my X3.
A .3" cut should be just fine. With 6 flute 1" rougher, I can take .25" off at a pass without bogging the motor down. No chatter either