Newbie posting up my first machine thoughts - Feedback appreciated!

[John V]

Well here are the hard parts -

Harbor Freight 44991 (ordered should pick it up tomorrow)

Stirling steele Belt Drive Kit for the Sieg Mini-Mill and Belt (ordered)

Hoss COMPLETE DIY CNC Conversion Kit (ordered)

kelinginc G540 3 axis package (One G540 + Three KL23H2100-35-4B (1/4” Dual shaft with a flat) 381 oz-in + one KL-350-48 48V/7.3A 115V /230V power supply (ordered) - updated and changed from the 387 to 381 due to Crevice Reamer's advice!

kelinginc emergency stop button - 3 home switches - 6 feet Parallel Cable for Breakout board (on deck)

20 ft of - Stepper-Motor-Wire-foot-2-individ-shielded-CNC (on deck)

Software - Mach 3


Opinions or thoughts? This is going to be a father son project. This is the son posting, If I sign my dad up with a log in he will probably post later on. Any thoughts or tips would be appreciated.

[Teyber12]

looks like you did your research. should be a great little machine with great components. be sure to post pictures of your progress!

[John V]

looks like you did your research. should be a great little machine with great components. be sure to post pictures of your progress!

That just makes me fell all the more confident

Will do. I plan on taking pics/posting every step of the way. I have seen a lot of build threads but it seems like everyone takes some beginning pics then gets started putting it together and forgets about it lol.

Going to order the electronics today after I get home from work.

[Crevice Reamer]

Hi John. Welcome to the Zone and Congratulations!

G540 only $250 here:

http://retromationinc.com/retromation_015.htm

Keling "kits" cost the same as individual parts. You can buy things separately for same prices. I would substitute the Keling 381s for 387s. It's a better match to G540:

http://kelinginc.net/NEMA23Motor.html

Teardown guide:

http://crevicereamer.com/Page_7.html

Don't forget current limit resistors and relays:

http://crevicereamer.com/Page_11.html

CR.

[Crevice Reamer]

Just have to add something to consider:

MicroMark is shipping the SX2:

http://cnczone.com/forums/showthread.php?t=103714

This would cost more, but may be higher quality, doesn't need the belt conversion kit and has more powerful motor:

http://www.micromark.com/MICROLUX-HI...HINE,9616.html

CR.

[hoss2006]

387's are a very close second choice to the 381's.
the 381's tend to be out of stock a lot so if the 387's are available,
go for them, you won't see any appreciable difference in the 2.
Hoss

[Crevice Reamer]

Huh? I AM recommending the 381s.

CR.

[hoss2006]

.

[John V]

Hi John. Welcome to the Zone and Congratulations!

Thanks! I didn't forget the resistors and such, your site has already been bookmarked!

Thanks a lot for the tear down guide! That will make things that much easier!

I already ordered the 387 kit... I just emailed them and told them I need 3 KL23H2100-35-4B motors instead. Thanks for posting that.

Update* instead of waiting for a response I called the number in the paypal receipt and I think I woke someone up.... but she got up and changed it in the computer... so everything should be good and it should ship out tomorrow!

[John V]

This is what I got from keling inc this morning - What gives?

Hi Sir

KL23H284-35-4B motors will be ok

KL23H2100-35-4B will get more speed, but motor will be hot

John

[knudsen]

Welcome John! I just turn the handles, so my only thought is good luck with your project! As you have already realized, there are plenty of folks willing and capable of helping you through if you have troubles. Be sure and post some progress pics.

[Crevice Reamer]

This is what I got from keling inc this morning - What gives?

All true. Good steppers DO run hot, and there are plenty of 387s out there running with G540s. The hotter motor DOES run faster, and should still be well under max operating temp of 180 degrees.

On an X2, the difference won't be that much, and John has a bunch of 387s to move. On a router, the difference would be significant. The 381's ARE 1/2 inch longer than the 387s, If that makes any difference.

I just like to buy the best motor first, that's all.

CR.