Engraved enclosure fascia

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RobCee
Posts: 587
Joined: Wed Jan 08, 2014 11:33 am
Location: Birmingham, UK

Engraved enclosure fascia

Post by RobCee » Wed Jul 01, 2015 6:50 pm

I have been learning how to make my engraving better and (finally) putting together an enclosure to get the electronics off my desk.
Thought I would share, so here you go.

First, a little teaser image
67 Teaser.jpg
Small teaser image of the finished product
67 Teaser.jpg (15.12 KiB) Viewed 1690 times
Setup on the SO2 and looking good
61 Enclosure text.jpg
WIP
61 Enclosure text.jpg (161.41 KiB) Viewed 1690 times
All carved and ready for some experimentation
62 Enclosure face carved.jpg
Ready for post-processing
62 Enclosure face carved.jpg (235.2 KiB) Viewed 1690 times
ShapeOko2 #3400 - Chinese 800W AC Spindle - Stiffened X-Axis - TR10 Z-Axis - Inverted Z Motor - Hall Effect Limits - Drag Chains & Custom Brackets

RobCee
Posts: 587
Joined: Wed Jan 08, 2014 11:33 am
Location: Birmingham, UK

Re: Engraved enclosure fascia

Post by RobCee » Wed Jul 01, 2015 6:58 pm

This next part is where the magic happens!

The material is MDF, so I applied four coats of sanding sealer (shellac) and then a coat of hard wax to the entire front face.
This was then polished to a good shine before doing anything more.
63 Sanding sealer applied.jpg
Sealing coats applied
63 Sanding sealer applied.jpg (232.64 KiB) Viewed 1689 times
The engraved detail was picked out using an acrylic paint (burnt umber) which was liberally added to the grooves and then most of the excess was removed with a plastic straight edge (used at an angle so it doesn't pull out too much paint).
This was left to dry for a few hours (or overnight)
64 Filled engraving.jpg
Fill engraving with paint
64 Filled engraving.jpg (266.57 KiB) Viewed 1689 times
After the paint has dried, using more hard wax, the 'paint on wax' can be removed by polishing the flat surfaces with a thin cloth wrapped around a flat piece of wood.
The mild solvents in the wax and the friction from buffing remove the excess paint.
This leaves you with:
65 Polished and ready for install.jpg
Polish the excess off
65 Polished and ready for install.jpg (218.27 KiB) Viewed 1689 times
ShapeOko2 #3400 - Chinese 800W AC Spindle - Stiffened X-Axis - TR10 Z-Axis - Inverted Z Motor - Hall Effect Limits - Drag Chains & Custom Brackets

RobCee
Posts: 587
Joined: Wed Jan 08, 2014 11:33 am
Location: Birmingham, UK

Re: Engraved enclosure fascia

Post by RobCee » Wed Jul 01, 2015 6:59 pm

Finally you can install everything and stand back to enjoy your work!
66 Installed and ready to rock.jpg
It's a thing of beauty (almost)
66 Installed and ready to rock.jpg (162.07 KiB) Viewed 1689 times
ShapeOko2 #3400 - Chinese 800W AC Spindle - Stiffened X-Axis - TR10 Z-Axis - Inverted Z Motor - Hall Effect Limits - Drag Chains & Custom Brackets

Brian Stone
Posts: 295
Joined: Tue Oct 21, 2014 1:52 am
Location: Seattle, WA

Re: Engraved enclosure fascia

Post by Brian Stone » Wed Jul 01, 2015 7:23 pm

That's one of the best looking control boards I've seen here yet. Nice work!
Shapeoko 2 #7353
1500x1000mm Shapeoko/X-Carve Hybrid, Nema-23's, Belt-Driven Z-Axis /w ACME Screw, Dewalt 611, Soundproof Enclosure
[Fusion 360 | Illustrator] -> Universal G-Code Sender

Woodworker
Posts: 639
Joined: Tue Mar 11, 2014 1:37 am
Location: 5 miles north of Benson, NC

Re: Engraved enclosure fascia

Post by Woodworker » Wed Jul 01, 2015 11:11 pm

Very nice, crisp sharp line definition. The wax appears to be a good choice.
BRuce - SO2 #4798 - IC's Z axis upgrade, customized Z rail and Z motor mount, spindle Dewalt 611

twforeman
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Location: Minneapolis, MN
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Re: Engraved enclosure fascia

Post by twforeman » Thu Jul 02, 2015 2:13 am

That's beautiful. Nice work!
Ender 3 3D Printer
ShapeOko v3 serial #0004 - upgrade thread
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RobCee
Posts: 587
Joined: Wed Jan 08, 2014 11:33 am
Location: Birmingham, UK

Re: Engraved enclosure fascia

Post by RobCee » Thu Jul 02, 2015 7:37 am

As a summary, here is the process:

1. Engrave, carve, make your pattern
2. Seal the wood with sanding sealer/shellac - 3/4 coats
3. Apply a hard wax and buff the whole piece well
4. Rub acrylic paint into the detail areas (electric toothbrush works great)
5. Remove excess paint using a plastic card scraper - be quick as the acrylic can dry fast when it's thin
6. Wait for the acrylic to dry properly 2-3 hours usually
7. Re-apply wax and buff off using a cloth wrapped around a block of wood (stops it trying to pull the detail out and helps remove any stubborn bits)
8. Step back and admire your work!

For a colour, I find Burnt Umber one of the best for contrast in lighter woods.
ShapeOko2 #3400 - Chinese 800W AC Spindle - Stiffened X-Axis - TR10 Z-Axis - Inverted Z Motor - Hall Effect Limits - Drag Chains & Custom Brackets

cdndave
Posts: 1
Joined: Wed Jun 24, 2015 10:55 pm

Re: Engraved enclosure fascia

Post by cdndave » Thu Jul 09, 2015 6:24 pm

I like the LEDs mounted to the enclosure - how are they wired in the back? What is the source for the LEDs? Specifically - how are the limit switches wired to the control board? I'd love to see snapshots of the inside of the enclosure

Great work....

RobCee
Posts: 587
Joined: Wed Jan 08, 2014 11:33 am
Location: Birmingham, UK

Re: Engraved enclosure fascia

Post by RobCee » Fri Jul 10, 2015 1:12 pm

The internal details for my electronics are all on here, but a bit spread out. I will try and put them into a single thread that covers the bits you need to know, but it may be a week or so until I actually get around to it.

I designed a circuit for Hall Sensors as limit switches and tried a few ways to integrate it into the Arduino/GShield environment (external strip-board, arduino proto-shield) and there is a thread about the strip board here and the arduino shield here.

I finally got around to working out how to interface my VFD into the chain so that I can speed control it successfully. This took more electronics and was great fun too. I designed a board and had it made in China, then interfaced it into the stack of boards and it works (mainly) the way I expected... Here is the thread about that part.
ShapeOko2 #3400 - Chinese 800W AC Spindle - Stiffened X-Axis - TR10 Z-Axis - Inverted Z Motor - Hall Effect Limits - Drag Chains & Custom Brackets

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