Blinder

Tasmota roller blind open / close mechanism

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Table of Contents

1. Parts list
2. Pulley Assembly
3. Switch Slide Assembly
4. Rod Assembly
5. Retainer Assembly
6. Idler Assembly
7. Base Assembly
8. Motor Assembly
9. Bracket Assembly
10. Blinder PCB Assembly
11. Cover Assembly
12. Main Assembly

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Parts list

Switch Slide	Rod	Base	Motor	Bracket	Blinder PCB	Cover	Main	TOTALS
									Vitamins
.	.	2	.	.	.	.	.	2	Ball bearing 686ZZ 6mm x 13mm x 5mm
.	.	.	.	.	1	.	.	1	ESP-12F ESP8266 WiFi module
2	.	2	.	.	.	.	.	4	Heatfit insert M2 x 4mm
.	.	10	1	.	.	.	.	11	Heatfit insert M3 x 3mm
.	.	.	.	.	1	.	.	1	JST PH connector 2 way
.	.	.	.	.	2	.	.	2	JST PH connector 3 way
.	.	.	.	.	1	.	.	1	LED 3 mm green
.	.	.	.	.	1	.	.	1	MULTIWATT11 L6203
1	.	1	.	.	.	.	.	2	Microswitch DM1-00P-110-3
.	.	.	.	.	1	.	.	1	Molex KK header 2 way
.	.	.	.	.	1	.	.	1	Molex KK housing 2 way
.	.	.	.	.	.	1	.	1	Nut M3 x 2.4mm nyloc
.	.	1	.	.	.	.	.	1	Nut M8 x 6.5mm brass
.	.	.	.	.	1	.	.	1	PCB Blinder
.	.	.	.	.	2	.	.	2	SMD capacitor 0805 100n
.	.	.	.	.	2	.	.	2	SMD capacitor 0805 15n
.	.	.	.	.	1	.	.	1	SMD capacitor 0805 220n
.	.	.	.	.	5	.	.	5	SMD resistor 0805 10K 0.125W
.	.	.	.	.	2	.	.	2	SMD resistor 0805 1K 0.125W
.	.	.	.	.	1	.	.	1	SMD resistor 0805 2K2 0.125W
2	.	2	.	.	.	.	.	4	Screw M2 cap x 10mm
.	.	1	.	.	.	.	.	1	Screw M3 cap x 5mm
.	.	.	.	3	.	.	.	3	Screw M3 cap x 8mm
.	.	.	.	.	.	.	4	4	Screw M3 cs cap x 5mm
.	.	.	.	.	.	1	.	1	Screw M3 cs cap x 12mm
.	.	.	6	.	.	.	.	6	Screw M3 dome x 12mm
.	.	2	1	.	.	.	.	3	Screw M3 grub x 5mm
.	.	.	.	3	.	.	.	3	Screw No8 pan wood x 30mm
.	.	.	.	.	2	.	.	2	Square button 6mm
.	1	.	.	.	.	.	.	1	Threaded rod M8 x 79mm - not shown
.	.	.	.	.	1	.	.	1	Ultra Small 3A buck regulator
2	.	2	.	.	.	.	.	4	Washer M2 x 5mm x 0.3mm
.	.	1	.	3	.	1	.	5	Washer M3 x 7mm x 0.5mm
.	.	.	.	3	.	.	.	3	Washer M5 x 10mm x 1mm
.	.	2	.	.	.	.	.	2	Washer spring M6 x 1.9mm
2	.	2	.	.	.	.	.	4	Washer star M2 x 0.3mm
.	.	1	.	.	.	.	.	1	Washer star M3 x 0.5mm
9	1	29	8	12	25	3	4	91	Total vitamins count
									3D printed parts
.	.	1	.	.	.	.	.	1	base.stl
.	.	.	.	1	.	.	.	1	bracket.stl
.	.	.	.	.	.	1	.	1	cover.stl
.	.	1	.	.	.	.	.	1	idler.stl
.	.	.	1	.	.	.	.	1	pulley.stl
.	.	1	.	.	.	.	.	1	retainer.stl
1	.	.	.	.	.	.	.	1	switch_slide.stl
1	.	3	1	1	.	1	.	7	Total 3D printed parts count

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Pulley Assembly

Vitamins

Qty	Description
1	Heatfit insert M3 x 3mm
1	Screw M3 grub x 5mm

3D Printed parts

1 x pulley.stl

Assembly instructions

1. Fit the heatfit insert
2. Add the grub screw

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Switch Slide Assembly

Vitamins

Qty	Description
2	Heatfit insert M2 x 4mm
1	Microswitch DM1-00P-110-3
2	Screw M2 cap x 10mm
2	Washer M2 x 5mm x 0.3mm
2	Washer star M2 x 0.3mm

3D Printed parts

1 x switch_slide.stl

Assembly instructions

1. Fit the heatfit inserts into the slide.
2. Screw the microswitch to the slide using 10mm M2 cap screws spring washers and plain washers.
3. Solder two wires to the outer pins.

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Rod Assembly

Vitamins

Qty	Description
1	Threaded rod M8 x 79mm - not shown

Assembly instructions

• Turn down the ends of the studding to 5.96mm to fit through the bearings.

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Retainer Assembly

Vitamins

Qty	Description
1	Heatfit insert M3 x 3mm
1	Screw M3 grub x 5mm

3D Printed parts

1 x retainer.stl

Assembly instructions

1. Fit the heatfit insert
2. Add the grub screw

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Idler Assembly

Vitamins

Qty	Description
1	Heatfit insert M3 x 3mm
1	Screw M3 grub x 5mm

3D Printed parts

1 x idler.stl

Assembly instructions

1. Fit the heatfit insert
2. Add the grub screw

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Base Assembly

Vitamins

Qty	Description
2	Ball bearing 686ZZ 6mm x 13mm x 5mm
2	Heatfit insert M2 x 4mm
8	Heatfit insert M3 x 3mm
1	Microswitch DM1-00P-110-3
1	Nut M8 x 6.5mm brass
2	Screw M2 cap x 10mm
1	Screw M3 cap x 5mm
2	Washer M2 x 5mm x 0.3mm
1	Washer M3 x 7mm x 0.5mm
2	Washer spring M6 x 1.9mm
2	Washer star M2 x 0.3mm
1	Washer star M3 x 0.5mm

3D Printed parts

1 x base.stl

Sub-assemblies

1 x idler_assembly	1 x retainer_assembly	1 x rod_assembly

1 x switch_slide_assembly

Assembly instructions

1. Fit the 8 M3 inserts, 4 in the ribs, 3 in the base and 1 for the slide
2. Fit two M2 inserts for the microswitch.
3. Place the M8 nut in a central position and screw in the studding.
4. Crush the M8 spring washers with pliers as they are used just as spacers.
5. Fit the bearings and spring washers and secure in place with the pulley and retainer grub screws.
6. Solder two wires to the outer pins of the microswitch and screw it in place.
7. Screw the slide in place in the central position.

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Motor Assembly

Vitamins

Qty	Description
6	Screw M3 dome x 12mm

Sub-assemblies

1 x base_assembly	1 x pulley_assembly

Assembly instructions

1. Introduce the motor and pulley trapping the ball chain between the pulley and the idler and then screw the motor in place.
2. Solder wires to the motor.
3. Crimp JST plugs to the motors and switch wires. Use the schematic to get the correct pins.

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Bracket Assembly

Vitamins

Qty	Description
3	Screw M3 cap x 8mm
3	Screw No8 pan wood x 30mm
3	Washer M3 x 7mm x 0.5mm
3	Washer M5 x 10mm x 1mm

3D Printed parts

1 x bracket.stl

Sub-assemblies

1 x motor_assembly

Assembly instructions

1. Screw the bracket to the bottom of the base using 3 8mm M3 cap screws and washers.
2. Screw the bracket to the wall using rawl plugs, No8 screws and M5 washers.
3. Slide it down to tension the ball chain before tightening the screws.
4. Connect the PCB to the switches, motor and 12V power.
5. While controlling the blind with the buttons: adjust the closed position by losening the idler pulley and rotating it on the shaft.
6. Then set the open position by adjustinge the sliding microswitch.

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Blinder PCB Assembly

Vitamins

Qty	Description
1	ESP-12F ESP8266 WiFi module
1	JST PH connector 2 way
2	JST PH connector 3 way
1	LED 3 mm green
1	MULTIWATT11 L6203
1	Molex KK header 2 way
1	Molex KK housing 2 way
1	PCB Blinder
2	SMD capacitor 0805 100n
2	SMD capacitor 0805 15n
1	SMD capacitor 0805 220n
5	SMD resistor 0805 10K 0.125W
2	SMD resistor 0805 1K 0.125W
1	SMD resistor 0805 2K2 0.125W
2	Square button 6mm
1	Ultra Small 3A buck regulator

Assembly instructions

1. Use a paste mask to apply solder paste to the SMD pads.
2. Place the SMD parts on the solder.
3. Use an oven or hotplate to reflow the solder.
4. Alternatively the SMD parts and pads are big enough to hand solder.
5. Hand solder the through hole connectors, switches, LED and L6203. The LED's flange should align with the board edge.
6. Solder wires into the tink_buck converter, mount it on a double sided sticky pad and solder the wires to the PCB.
7. Crop all the leads short on the underside of the board.

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Cover Assembly

Vitamins

Qty	Description
1	Nut M3 x 2.4mm nyloc
1	Screw M3 cs cap x 12mm
1	Washer M3 x 7mm x 0.5mm

3D Printed parts

1 x cover.stl

Sub-assemblies

1 x blinder_PCB_assembly

Assembly instructions

1. Cut away the support material under the PCB spacer boss.
2. Place the PCB into the large guide and level with the top of the small guide and then slide forwards.
3. Secure with the screw, washer and nut.

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Main Assembly

Vitamins

Qty	Description
4	Screw M3 cs cap x 5mm

Sub-assemblies

1 x bracket_assembly	1 x cover_assembly

Assembly instructions

1. Place the 12V power cable in the slot in the base.
2. Place the cover assembly over the base and secure with four screws.

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