# Relocation of SLB, VFD and wiring

**URL:** <https://forum.sienci.com/t/relocation-of-slb-vfd-and-wiring/26933>\
**Category:** 📛 Others\
**Created:** [August 17, 2026, 6:31pm UTC](https://forum.sienci.com/t/relocation-of-slb-vfd-and-wiring/26933 "2026-08-17T18:31:17Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![cncConfusion](https://forum.sienci.com/user_avatar/forum.sienci.com/cncconfusion/32/12731_2.png) [@cncConfusion](https://forum.sienci.com/u/cncConfusion)\
**Post date:** [August 17, 2026, 6:31pm UTC](https://forum.sienci.com/t/relocation-of-slb-vfd-and-wiring/26933/1 "2026-08-17T18:31:17Z")

</div>

Hey all, just thought I’d share my mods so far.

Built a small shelf on back side of my Altmill where I relocated my VFD and SLB to.

Rerouted the wiring to the back, replaced the cable chain with a slightly different one and switched which way it runs.

To my ocd this is a much cleaner setup.

I am working on making some mods to my gControl setup as well, building off some one else’s design.

Also, the rotary will be getting a different home at some point as well.

 ![IMG_9707](https://forum.sienci.com/uploads/default/original/2X/a/afad4db2e9895862207172457dbac66d537ca217.jpeg)

 ![IMG_9706](https://forum.sienci.com/uploads/default/original/2X/b/bc60ec8e0513edf3009b729e18face9f7c72ed43.jpeg)

 ![IMG_9703](https://forum.sienci.com/uploads/default/original/2X/6/6c626e82f1f215ec96e72ff8ea3af79ea4de3ccb.jpeg)

 ![IMG_9704](https://forum.sienci.com/uploads/default/original/2X/4/48f37eb025c6e2427795036998e7cac61dfe6f8f.jpeg)

 ![IMG_9705](https://forum.sienci.com/uploads/default/original/2X/0/07d7a8c52e443a9c92453d43e6562aa368450c9c.jpeg)

---

<div class="post-metadata">

**Author:** ![DU913OZ](https://forum.sienci.com/user_avatar/forum.sienci.com/du913oz/32/12613_2.png) [@DU913OZ](https://forum.sienci.com/u/DU913OZ)\
**Post date:** [August 22, 2026, 7:20pm UTC](https://forum.sienci.com/t/relocation-of-slb-vfd-and-wiring/26933/2 "2026-08-22T19:20:16Z")

</div>

Hi There, What is a VFD and a SLB. I am really really new.

---

<div class="post-metadata">

**Author:** ![Jens](https://forum.sienci.com/letter_avatar_proxy/v4/letter/j/d2c977/32.png) [@Jens](https://forum.sienci.com/u/Jens)\
**Post date:** [August 22, 2026, 7:54pm UTC](https://forum.sienci.com/t/relocation-of-slb-vfd-and-wiring/26933/3 "2026-08-22T19:54:31Z")

</div>

VFD - Variable Frequency Drive - the thing that powers the spindle and sets the spindle RPM’s  
SLB - Super Long Board - the thing that drives the position and speed of the spindle, the heart of the CNC router. It’s controller.

---

<div class="post-metadata">

**Author:** ![DU913OZ](https://forum.sienci.com/user_avatar/forum.sienci.com/du913oz/32/12613_2.png) [@DU913OZ](https://forum.sienci.com/u/DU913OZ)\
**Post date:** [August 23, 2026, 7:24am UTC](https://forum.sienci.com/t/relocation-of-slb-vfd-and-wiring/26933/4 "2026-08-23T07:24:55Z")

</div>

Hi Jens,

Thanks for the information

👍👍👍