# Wiring the new altmill

**URL:** <https://forum.sienci.com/t/wiring-the-new-altmill/13915>\
**Category:** 🛠️ Assembly\
**Created:** [September 17, 2024, 3:59pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915 "2024-09-17T15:59:10Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![Strst](https://forum.sienci.com/user_avatar/forum.sienci.com/strst/32/7823_2.png) [@Strst](https://forum.sienci.com/u/Strst)\
**Post date:** [September 17, 2024, 3:59pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/1 "2024-09-17T15:59:10Z")

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Is it necessary to have the slb and spindle on separate circuits?

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**Author:** ![Jake](https://forum.sienci.com/user_avatar/forum.sienci.com/jake/32/2491_2.png) [@Jake](https://forum.sienci.com/u/Jake)\
**Post date:** [September 17, 2024, 4:12pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/2 "2024-09-17T16:12:26Z")

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Welcome to the forum @Strst ! Good group of people with sound advice. I would say no. With that said, I don’t own an AltMill yet, but will in the future. I run my machine and router (LongMill MK2) on the same circuit. Now my old Mac, I had issues with running on the same circuit. It would pop the ground fault on an outlet. I switched circuits for the laptop and no problems since.

Again, welcome!

Jake

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**Author:** ![Strst](https://forum.sienci.com/user_avatar/forum.sienci.com/strst/32/7823_2.png) [@Strst](https://forum.sienci.com/u/Strst)\
**Post date:** [September 17, 2024, 4:22pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/3 "2024-09-17T16:22:00Z")

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Thanks for the quick feedback Jake . I’ve just joined the forum and am looking forward to the advantages of group support and collaboration.

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**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\
**Post date:** [September 17, 2024, 4:49pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/4 "2024-09-17T16:49:23Z")

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@Strst One thing that I’m sure you know to consider is the amp draw of your spindle + the SLB and the rating of the breaker that runs the circuit.

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**Author:** ![Strst](https://forum.sienci.com/user_avatar/forum.sienci.com/strst/32/7823_2.png) [@Strst](https://forum.sienci.com/u/Strst)\
**Post date:** [September 17, 2024, 5:56pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/5 "2024-09-17T17:56:39Z")

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Thanks, you’re right. I also have concern over electrical interference on the slb.

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**Author:** ![fafesb](https://forum.sienci.com/letter_avatar_proxy/v4/letter/f/6bbea6/32.png) [@fafesb](https://forum.sienci.com/u/fafesb)\
**Post date:** [September 17, 2024, 7:35pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/6 "2024-09-17T19:35:25Z")

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I have a Altmill and I don’t have them on separate circuits. I’ve been running it for a month and a half with no problems. My circuit is 20 amp

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**Author:** ![Strst](https://forum.sienci.com/user_avatar/forum.sienci.com/strst/32/7823_2.png) [@Strst](https://forum.sienci.com/u/Strst)\
**Post date:** [September 17, 2024, 7:59pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/7 "2024-09-17T19:59:15Z")

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Perfect! That’s what I was hoping. I’d like to be able to use the rest of my wood shop while the mill is running.  
Thanks, Stan…

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**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\
**Post date:** [September 17, 2024, 9:15pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/8 "2024-09-17T21:15:45Z")

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@Strst Just to address any confusion. Mine that is. 😀 I took your question to ask if the SLB and the spindle had to be on different circuits - one for the each. Your last statement leads me to believe that I misunderstood. You are talking about whether one or both of them need to be on a dedicated circuit - one on which you are not running other shop equipment - table saws, jointers, planers, etc.

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**Author:** ![Jake](https://forum.sienci.com/user_avatar/forum.sienci.com/jake/32/2491_2.png) [@Jake](https://forum.sienci.com/u/Jake)\
**Post date:** [September 18, 2024, 12:41am UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/9 "2024-09-18T00:41:47Z")

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I agree. Separate circuit from lights, table saw, dust collector. Anything that could push you to the point of breaker tripping. Mine is a dedicated circuit with nothing else connected but my CNC. Routinely, I am using my table saw, or my surface planer while the CNC is operational. Although I do stand and watch my LongMill do its magic in awe sometimes!🤣😂😆

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**Author:** ![Strst](https://forum.sienci.com/user_avatar/forum.sienci.com/strst/32/7823_2.png) [@Strst](https://forum.sienci.com/u/Strst)\
**Post date:** [September 18, 2024, 2:33am UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/10 "2024-09-18T02:33:12Z")

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Sorry for any confusion. I naturally have concerns about any and all setups! 😁  
Would very much like to avoid surprises.

Making space and getting everything ready for the big day. Appreciate all the help from everyone.

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**Author:** ![Hemlock30](https://forum.sienci.com/letter_avatar_proxy/v4/letter/h/53a042/32.png) [@Hemlock30](https://forum.sienci.com/u/Hemlock30)\
**Post date:** [September 19, 2024, 12:24am UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/11 "2024-09-19T00:24:07Z")

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I have my Alt Mill and SLB running through a 20amp surge protector and into a dedicated 20amp breaker. Ive got 4or 5 run hours with no issues.

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**Author:** ![Strst](https://forum.sienci.com/user_avatar/forum.sienci.com/strst/32/7823_2.png) [@Strst](https://forum.sienci.com/u/Strst)\
**Post date:** [September 19, 2024, 1:03pm UTC](https://forum.sienci.com/t/wiring-the-new-altmill/13915/12 "2024-09-19T13:03:00Z")

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Thanks. The surge protector is a great idea. I’ll check on my power bar to see the rating.
