# Longmill MK3 30x30 Enclosure
**URL:** https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642
**Category:** š ļø Assembly
**Created:** [June 28, 2026, 5:43pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642 "2026-06-28T17:43:09Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@Derekh1979](https://forum.sienci.com/u/Derekh1979)
#### Post date: [June 28, 2026, 5:43pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/1 "2026-06-28T17:43:09Z")
I have ordered the Longmill MK3 30x30.
I am building an under cabinet enclosure for my new Longmill MK3 30x30.
Can I get suggestions on measurements from you more experienced professionals š
I will have the 30x30 with the autospin, dust boot with dust extraction system with my dewalt stealthsonic 9 gal shopvac and Dust Deputy 2.5
Planning on hopefully mounting the controller outside the enclosure to keep it away from sawdust, better cooling, etc.
I am thinking 48 deep by 54 wide by 24 highā¦ but please be honest as I want to build it right the first time.
I do want the enclosure for sound suppression.
Will have a small camera mounted inside along with dust collection hose, dust boot, etcā¦
Appreciate all feedback and thank you all so much.
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### Author:  [@Spamming\_Eddie](https://forum.sienci.com/u/Spamming_Eddie)
#### Post date: [June 28, 2026, 6:09pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/2 "2026-06-28T18:09:17Z")
Hi Derekh,
Since I have an lm mk2 and no enclosure, I am not the one you are looking for but maybe for a handy link that might start you up size ways.
> **[MK3-Assembly-30x30-Specifications.pdf](https://resources.sienci.com/wp-content/uploads/2024/04/MK3-Assembly-30x30-Specifications.pdf)**
>
> 819.44 KB
Congrats on getting your awesome machine. Hope to see you flooding the forum with your wild carving-art soon.
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### Author:  [@Derekh1979](https://forum.sienci.com/u/Derekh1979)
#### Post date: [June 28, 2026, 6:15pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/3 "2026-06-28T18:15:34Z")
@Spamming_Eddie thanks for the response. I have the diagram for the 30x30 but thank you. I am just looking for proper clearances for dust collection hoses and movement clearances as Im coming from a small Genmitsu 3020 Pro Ultra.
I canāt wait until Sept for my LongMill MK3
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### Author:  [@Spamming\_Eddie](https://forum.sienci.com/u/Spamming_Eddie)
#### Post date: [June 28, 2026, 7:03pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/4 "2026-06-28T19:03:28Z")
Daaaaim, almost like the altmill release backlog time table when it was released a while back.
I am pretty much the worst person to have in your topic, cause it seems I do everything inverted to conventional users. I build an Eddie enclosure rather than enclosing the machine so i can run it without needing dust extraction. I clean it.. when my make shift y axis guards can no longer hold the piles of chips back. I stopped using my auto xy block and only use the simple block for z zeroing. I done away with traditional spoil boards and use spoil strips and sometimes custom build riggs. Worse of all, I am reasonable deaf and need the sound that I still can hear to determine the health of the machine when running. Sound proofing my longmill would be my worst nightmare. I did put my controller(s) inside an enclosere though.
I might be able to summon @_Michael he build an enclosure for his 30x30 and may be of more use.
> [@SLB upgrade, mill remounting and more!](https://forum.sienci.com/t/slb-upgrade-mill-remounting-and-more/20944):
>
> Warning This is going to be a long post. Better take care of any pressing issues and come back with your favorite beverage. Go ahead, Iāll waitā¦ Preface I recently ordered a SLB for my LongMill Mk1 30x30 and I thought that it would be a good time to do some maintenance and various other things Iāve been putting off. Hereās the list of things I had planned. Install the SLB. Remount the LongMill on MDF strips to raise it and make squaring easier. Redesign the inductive sensor mounts to gain a lā¦
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### Author:  [@mbelleri](https://forum.sienci.com/u/mbelleri)
#### Post date: [June 30, 2026, 3:18pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/5 "2026-06-30T15:18:20Z")
My enclosure:
[https://www.facebook.com/groups/mill.one/permalink/1783349455469711/](https://www.facebook.com/groups/mill.one/permalink/1783349455469711/)?
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### Author:  [@Derekh1979](https://forum.sienci.com/u/Derekh1979)
#### Post date: [June 30, 2026, 8:31pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/6 "2026-06-30T20:31:47Z")
Hey Mike,
If possible could I steal the measurements from you also some more details on what you used for your build? Love the fact you say it how much it cuts down on the noise and also that you use latches incase you need to remove for maintenance or whatever requirements you need at anytime.
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### Author:  [@mbelleri](https://forum.sienci.com/u/mbelleri)
#### Post date: [June 30, 2026, 10:08pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/7 "2026-06-30T22:08:47Z")
Table is 55ā wide by 49ā depth, enclosure is 52ā wide x 49ā depth. This leaves a small 3ā shelf on the side to mount equipment like the power supply, longboard and others like power bar, etc. Enclosure height is about 32ā. Details of the materials used is in the Facebook link. Noise reduction is quite modest, the main benefit is cutting down on dust, even though I have a decent dust collection setup.
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### Author:  [@Derekh1979](https://forum.sienci.com/u/Derekh1979)
#### Post date: [June 30, 2026, 10:16pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/8 "2026-06-30T22:16:08Z")
Thanks Mike,
I am building a 55 x 48 torsion box to mount the Longmill 30x30 toā¦ thinking 24 inchs high for the enclosure heightā¦ the machine is 18 high and then leaves 6 for the shopvac hose that goes to my dust deputyā¦ Im hoping the MK3 has wires long enough to mount the controller outside the enclosure keep it cooler and out of the dusty elements.
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### Author:  [@mbelleri](https://forum.sienci.com/u/mbelleri)
#### Post date: [June 30, 2026, 11:46pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/9 "2026-06-30T23:46:45Z")
On the MK2 the wires are plenty long, my controller is also mounted outside the enclosure. I would imagine the MK3 wires are not gonna be shorter ?
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### Author:  [@\_Michael](https://forum.sienci.com/u/_Michael)
#### Post date: [July 10, 2026, 5:39am UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/10 "2026-07-10T05:39:25Z")
I meant to post this awhile back but better late then never.
Hereās a post of what my enclosure looked like when I first built it. Since then Iāve added a door in the back for pass through work. Anyway my main reason for posting this is because Iāve never regretted making my enclosure super tall. Iām 6ā2" and donāt like hitting my head! Itās also made the vac and laser exhaust hose management a breeze, they just come through the roof near the center. I donāt use FB so I canāt see how @mbelleriās design is for access.
> [@My LM setup with right side electronics](https://forum.sienci.com/t/my-lm-setup-with-right-side-electronics/4028):
>
> First off, hello to all as I am new here. I thought I would share some photos of my setup with the controls mounted on the right side. I mounted the X motor on the right side and flipped the direction in the firmware. Other mods needed for right side controls were fabrication of a bracket for the Y drag chain and drilling a hole to mount the X drag chain. I also needed to extend the cables for the X and Z limit sensors.
Good luck with your build! I wish I made a torsion box because I get some movement with humidity changes with my plywood and 2x4 base.
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### Author:  [@mbelleri](https://forum.sienci.com/u/mbelleri)
#### Post date: [July 10, 2026, 12:45pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/11 "2026-07-10T12:45:52Z")
Photo of my enclosure. I agree with you that if you can make it taller, itās a good way to avoid bumping your head (ask me how I know š).
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### Author:  [@Derekh1979](https://forum.sienci.com/u/Derekh1979)
#### Post date: [July 10, 2026, 12:51pm UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/12 "2026-07-10T12:51:47Z")
Is that a 30 x 30? Whats the measurements? I want it to be under my workstation as very limited on space right now, but donāt want to be limited to much. Was thinking 4 inch torsion box with 30 inches of enclosure then my workstation on top so avout 34 to 36 inches from the ground. I have ordered the 30 x 30 Longmill MK3 and my torsion box Im thinking will be 55 wide by 48 deep by 4 inches highā¦ Playing with the idea of torsion box for workstation top as well but maybe only a 3 inch high or might just double up the top with two layers of MDFā¦ Want to do it right the first time or atleast close to it lol
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### Author:  [@\_Michael](https://forum.sienci.com/u/_Michael)
#### Post date: [July 12, 2026, 10:38am UTC](https://forum.sienci.com/t/longmill-mk3-30x30-enclosure/26642/13 "2026-07-12T10:38:24Z")
@Derekh1979 If your question was for me, my my mill is a LongMill 30x30 Mk1. My enclosure is 50" wide, 49" deep and 42" tall. Those are the outside measurements.
Your mileage my vary but I think itās worth making the access to the machine as easy as possible because I end up spending a fair amount of time working in it between setups, cleaning and maintenance. Iāll be 52 this Friday so that plays a part as well. A quarter century ago working on the floor was much easier!