DIY

Hood cabinet for 3D printer

Cabinet with hood, for 3D printer  Cabinet with a hood, for a 3D printer The master has a Prusa i3 MK3S 3D printer. Additionally, he installed a RaspberryPi Zero and a Pi camera to be able to remotely control the printer via the OctoPrint app.
The printer was installed in the workshop, but after a while he realized that the printer needed a cabinet.
The task was to protect the device from dust, organize an exhaust hood, and control the temperature.
Tools and materials:
-MDF with a thickness of 10 mm;
-Acryl;
-10 magnets with a diameter of 15 mm and a thickness of 2 mm;
-6 bearings, outer diameter 19 mm, hole diameter 8 mm, thickness 6 mm;
-Wood block 13cm x 27cm x 2.7cm;
-Sheet of polystyrene;
-Insulating tape;
-Digital thermometer;
-Digital hygrometer;
-LED strip 24 V;
-Cable;
-Fasteners;
-3D-printer:
Step one: smoke removal system
As you can see in the pictures, the smoke removal system allows you to adjust the air flow rate and turns on the air valve, which the master specially designed to connect the printer body to the system. All parts for the smoke extraction system can be found here.
Cabinet with a hood, for 3D printer  Cabinet with hood, for a 3D printer Cabinet with hood, for 3D printer  Cabinet with a hood, for a 3D printer Cabinet with hood, for 3D printer Step two: drawing
First, the master made a drawing of the cabinet.
< a href = "https://usamodelkina.ru/uploads/posts/2021-01/1611652245_1-7.jpg" rel = "prettyPhoto"> Cabinet with a hood, for a 3D printer Cabinet with a hood, for 3D printer Step three: assembling the case
Begins assembly from the back, bottom and front panels of MDF. Below you can see the diagram with all dimensions. He used panels with a thickness of 10 mm. He used two 10mm MDF panels for the base. There are two holes to be drilled in the cabinet: one at the back to extract smoke and one at the front for the printer control panel cables. You can use glue to fix the panels.
Cabinet with a hood, for a 3D printer After gluing the two bottom panels you need to attach 3D-printed feet to the base with screws.
Cabinet with a hood, for 3D printer Installs the rest of the MDF. Notice the 45 degree bevel on the top beams that will later be used to install the LED strip.
Cabinet with hood, for 3D printer Cabinet with hood, for 3D printer He used two 10mm MDF panels glued together as the base for the printer. From the bottom of the base, foam is fixed. The MDF base will provide a firm and level surface for the printer, and the bottom foam layer will absorb vibration.
Cabinet with hood, for 3D printer Step four: acrylic panels
Plexiglas panels on the sides and top are made airtight and removable. The artist used 4 mm acrylic. Before fixing the panels to the frame, it is necessary to apply a 15 mm wide strip of window gasket to the MDF frame to ensure tightness.
Then the panels are screwed on. The screws make it easy to remove the panel when you need to access the inside of the case. The master pre-drills several mounting holes in the acrylic panels and countersinks them.
Cabinet with a hood, for a 3D printer Cabinet with hood, for 3D printer Cabinet with hood, for 3D printer The master made several holes on the left side panel: one small hole for the power supply wires and a series of holes and slots for ventilation.
Step Five: Door
The front door is attached to the body with two 3D printed hinges and held closed with magnets. This will seal and allow the door to be easily removed by simply pulling it out of the hinges. The ability to remove the door is very important for controlling the temperature on warm days when the vents cannot handle the heat dissipation.
Cupboard with hood, for a 3D printer Cabinet with a hood for a 3D printer Cabinet with a hood, for 3D printer Cabinet with hood, for 3D printer Step Six: Spool Body
The spool is located at the top of the body on a 3D printed spool holder. The master wanted to protect the coil from dust and moisture. Cut out the walls of the case. Glued with silicone, glued a strip of window seal 5 mm wide along the lower edges. Added a small pocket to hold silica gel bags to absorb moisture. Attached, to the top front of the box, a 3D printed digital hygrometer holder.
Cabinet with hood, for 3D printer  Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer Step seven: external power supply unit
The power supply unit does not like high temperatures, so it better to take out of the case. Plus, with the power supply outside, it's easier to reach the power button.
In order not to add extra wires, the master moved it from the right side to the left and laid the wires through the small hole in the corner of the left plexiglass panel, drilled earlier.
He used a simple wooden block to attach the power supply to the left side of the case.
Cabinet with hood, for 3D printer Cabinet with hood, for 3D printer  Cabinet with a hood for a 3D printer Step eight: display and thermometer
To operate a printer that is installed in a cabinet, the control panel must be moved out. The craftsman removed it from the printer and drilled holes for the fastening screws on the front of the MDF case.
Then he disconnects the two ribbon cables from the control panel, pulls them into the hole on the front panel and reconnects. Secures the control panel to the body.
Then prints the thermometer holder with a cover and the probe arm on a 3D printer. Fastens the holder, installs the thermometer.
Cabinet with hood, for 3D printer  Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer  Cabinet with a hood, for a 3D printer Step nine: ventilation holes
The hood is installed on the rear wall of the case and is connected to the chimney. New air enters through the two vents on the left side of the cabinet. The propellers installed in the air vent are used to determine the air flow rate.
There are two vents with different designs. First, the craftsman designed the bottom hole, then made the top one.
The vent covers are 3D printed and consist of three parts: a base, a filter holder ring and a cover. The parts are fixed with glue.
To get dust inside, he installed a bag from a vacuum cleaner. To reduce air resistance, I removed the middle layer.
The axle and the propeller are also printed on the printer. To rotate the propellers, a bearing is installed on each of them.
Cabinet with a hood, for a 3D printer Cabinet with extractor hood, for 3D printer  Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer  Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer  Cabinet with a hood for a 3D printer Cabinet with hood for 3D printer Cabinet with hood, for 3D printer Step ten: LED strip
The master uses a 12 volt LED strip for lighting. The Prusa i3 mk3s power supply has a 24V output. To power the LEDs, he installed a small DC-DC converter 24V – 12V.
Set the switch to enable and disable.
Cabinet with a hood, for a 3D printer Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer Cabinet with hood, for 3D printer Cabinet with extractor hood, for 3D Printer Step Eleven: Spool Holder
Several parts need to be printed for the Spool Holder. For each guide you need :
2 bearings, outer diameter 19 mm, bore diameter 8 mm, thickness 6 mm
2 nuts and bolts M8, length 20 mm
4 washers, bore diameter 8 mm
Assemble everything as shown in the picture below.
To complete the spool section, you need to drill a hole in the top panel and insert a plug into the holes for the thread.
Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer  Cabinet with a hood for a 3D printer Cabinet with hood, for 3D printer Step twelve: attaching the camera, tool holder
The master wanted the camera bracket to be attached to the printer carriage to improve single-frame printing. When using this type of mount, the camera moves with the carriage and the printed object does not move relative to the camera.
It uses a RaspberriPi v2.0 camera connected with a ribbon cable to RaspberriPi.
 Cabinet with a hood for a 3D printer Then I installed several 3D-printed tool holders on the right side of the case: a spray bottle holder, which is used to clean the printer platform, and a multi-functional tool holder, which holds pliers, glue, a hex wrench and a wire brush to clean the nozzle .
Cabinet with hood , for a 3D printer  Cabinet with a hood for a 3D printer Everything is ready.
 Cabinet with extractor hood, for 3D printer and Files for printing details can be found here and here.

Source:

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