Mercury One.1/Hydra Electronics Drawer

[rotund patrol]

I saw a concept for an electronics drawer in the bottom of a Voron 2.4 (OP did not elaborate, literally just posted a video of him opening and closing it lol) and I thought that's pretty slick, so I figured I could probably find a way to do something to mount the drawer for the electronics enclosure for the Hydra/Mercury One.1: Fair Warning I HAVE NOT yet fabricated and built this modification so if you decide to take it on as a project I must warn you that the risk is entirely your own, that said if you do, please let me know about fit and such so that we can continue to improve it.

With that out of the way the front panel is now 5 parts (6 if you print the logo insert separate and assemble it), 2 pieces of it are the border, and 3 are attached to the drawer. I designed the tray to be a single bent aluminum piece, which from Send Cut Send, is quoted at $100 USD and change + shipping I believe. The mounting hardware for the front panel border is the same as the original skirt pieces, but adds 8 dowels to join the two halves together ( in an attempt to maintain whatever strength the original had with the bottom sheet ) I will pin the most up to date STL, STEP, and DXF files for the parts used in this mod.

I will do my best to put 📌 in each rev for easy searching of revisions and associated, BOM, files, and pictures.

[rotund patrol]

The Raw Assembly with more scratched in plans for mounting holes.
Maybe put a few different sets of mounting holes for control boards.
I do need help finding a cable chain that would fit in the drawer, needs to be Max (folded once) of 46mm which means, probably 15 ish mm thick, and then I don't know how wide that would have to be.

Pin Request📌: v0
Bill of Materials :

• 1x 2010 Lo-pro extrusion 499mm long all holes Tapped M4x0.7 x 10mm deep
• 1x 2010 Lo-pro extrusion 478mm long all holes Tapped M4x0.7 x 10mm deep
• 7x 90358A126 - Ultra Low Profile Socket Head Cap Screw M4 x 4mm
• 8x 90358A127 - Ultra Low Profile Socket Head Cap Screw M4 x 6mm
• 2x 11435A35 - Push to Open/Close drawer slides
• 6x M4 Roll in T-Nuts
• 8x M5 x 8mm Socket Head Cap Screw
• 8x M5 Roll in T-Nuts (if you have ones for DIN Rail Drop Mounts use those)
• 8x M4 x 12mm Socket Head Cap Screw
• 2x 92463A864 - M4 Binding Barrel

FABBED: (To Be Uploaded)

• 1x "Brain Pan"

PRINTED: (To Be Uploaded)

• 2x 2010_RM_LH
• 1x 2010_RM_RH
• 1x 2010_RM_OM
• 1x Center_FPF
• 1x Left_FPF
• 1x Right_FPF
• 1x Left_FP_Border
• 1x Right_FP_Border
• 1x Center_Binder_Plate

[rotund patrol]

I love when you realize you could have just done something with pins instead of using fasteners (facepalm)

[rotund patrol]

Re-drew the Front Panel Split so that it's much lower profile, to get more space in the drawer center. Updates to come

[rotund patrol]

I'll upload those in a bit, I may need to start a repository on Github

[rotund patrol]

Oof

[rotund patrol]

Pin Request 📌 v1 Revised: 3/8/2025
Bill of Materials ( & Estimated Costs from McMaster-Carr ):

• 1x 2010 Lo-pro extrusion 499mm long all holes Tapped M4x0.7 x 10mm deep @ $5.89 (19.625" [-0.525 mm])
• 1x 2010 Lo-pro extrusion 478mm long all holes Tapped M4x0.7 x 10mm deep @ $5.66 (18.75" [-1.75 mm])
• 8x M4 x 12mm SHCS ___________________ @ $12.02 / 100pk
• 8x M5 x 8mm SHCS ____________________ @ $12.75 / 100pk
• 8x 5278N44 M5 T-nuts for 2020 _______ @ $ 5.77 / 4pk (Ext. Price - $11.54)
• 2x 11435A35 Drawer Slides ___________ @ $31.17 / pair
• 6x 92855A401 M4 x 4 Low Pro SHCS ____ @ $ 6.40 / 10pk
• 8x 92855A408 M4 x 8 Low Pro SHCS ____ @ $ 8.05 / 25pk
• 8x 5278N43 M4 T-nuts for 2020 _______ @ $ 5.77 / 4pk (Ext. Price - $11.54)
• 9x 90358A127 M4 x 4 ULP SHCS ________ @ $ 4.35 / 1pc (Ext. Price - $39.15)
  Acceptable substitutes:
  • 91292A023 M4 x 4mm SHCS ___________ @ $ 6.30 / 10pk
  • 90666A110 M4 x 4mm LoPro SHCS _____ @ $16.50 / 100pk
• 22x 98381A417 1/16" x 3/8" Dowels ___ @ $11.91 / 50pk
• 4x 94459A769 Short M3 Heat Sets _____ @ $ 8.64 / 50pk

Fabricated: Quote from Send Cut Send ~ $100.56 for fabrication (I can't recall how much shipping was quoted at)

• 1x Brain_Tray.dxf

Printed Parts: .stl files uploaded

• 2x 2010_RM_LH
• 1x 2010_RM_RH
• 1x 2010_RM_CLR
• 1x OMFP_Center
• 1x OMFP_Left
• 1x OMFP_Right
• 1x Left_Border
• 1x Right_Border

Opening Electronics drawer v1 in Ender 5 Plus Zero G Mercury One.1

[rotund patrol]

Opening Electronics Drawer v1 in Ender 5 Plus Zero G Hydra

Opening Electronics Drawer v1 in Ender 5 Plus Zero G Hydra

[soft star]

Nice work. This is pretty cool

[broken cape]

🔥

[broken cape]

@rotund patrol any particular orientation these parts need to be printed in to keep high strength?

[rotund patrol]

Uh, I haven’t actually built it yet but, I doubt that it’s particularly picky, I’ll arrange them on a build plate and post what makes sense to me

[rotund patrol]

Just lay flat auto etc. should do decent, the odd one should use supports, and the panel frame will need supports laying face down.

[broken cape]

my only concern at this point is ASA shrinkage. And how much did it shrink by

[rotund patrol]

dear lord that looks beautiful

That is a consideration, I think I debited like a tenth or two tenths, One tenth debited All Around, so that's 2 tenths in total.

If anything I'm sure the mounts for the 1020 extrusion could be altered to use a drop in nut to anchor, should the two tapped holes at the end not be enough (in the case of removing the centerprinty bit)

I think the drawer was like 100$ from send cut send when I put it in for quote.

Copilot (which is obviously correct 1st try every time.

Says 0.8% to 1.2% shrinkage, so I wouldn't be too worried about it, granted I have not printed with ASA yet only ABS and PLA

[rotund patrol]

I’m curious did you follow the build out to completion?

[broken cape]

Evening. Sorry for the long delay.

I've finally started working on the Merc. But I don't have the BOM compiled for the drawer. For now I'm opting to go the stock route and then mod the drawer in later. Just going to leave behind some nice service coils under the hood for when I do the drawer mod