Introduction

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Features

• Fits a standard microscope slide
• Automated scanning of the whole slide
• Easy connect with external screen and keyboard, or remote desktop
• accelerated image processing with Google Coral TPU

Bill Of Materials (BOM)

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Total price: 799,23 €

Motors

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Item #	Name	Specs.	Qty.	Price per piece (€)	Shipping (€)	Total per Schistoscope (€)	Link
1	Stepper motor	NEMA 11, 1 mm pitch, 50 mm	2	€ 24,59	€ 24,20	€ 73,38	https://nl.aliexpress.com/item/1005005533260185.html?spm=a2g0o.productlist.main.21.d7193af5nTc0bL&algo_pvid=0311f4ec-5321-4d68-99e3-2e47c6b58b74&algo_exp_id=0311f4ec-5321-4d68-99e3-2e47c6b58b74-10&pdp_npi=4%40dis%21EUR%2136.33%2135.24%21%21%2138.24%21%21%40211b88ef16938677846513431e329a%2112000033439717476%21sea%21NL%210%21A&curPageLogUid=17Ds95Ps0tr9
2	Stepper motor	NEMA 11, 1 mm pitch, 100 mm	1	€ 25,10	€ 5,61	€ 30,71	https://nl.aliexpress.com/item/1005005533260185.html?spm=a2g0o.productlist.main.21.d7193af5nTc0bL&algo_pvid=0311f4ec-5321-4d68-99e3-2e47c6b58b74&algo_exp_id=0311f4ec-5321-4d68-99e3-2e47c6b58b74-10&pdp_npi=4%40dis%21EUR%2136.33%2135.24%21%21%2138.24%21%21%40211b88ef16938677846513431e329a%2112000033439717476%21sea%21NL%210%21A&curPageLogUid=17Ds95Ps0tr9
3	Stepper motor driver	DRV8825 + heatsink	3	€ 1,05	€ 1,55	€ 4,70	https://nl.aliexpress.com/item/1005001621676770.html?spm=a2g0o.productlist.main.45.7d113e71c5rpfz&algo_pvid=0ba04a30-e339-455d-b8e5-7db9d5e80bba&algo_exp_id=0ba04a30-e339-455d-b8e5-7db9d5e80bba-22&pdp_npi=4%40dis%21EUR%210.91%210.73%21%21%210.96%21%21%40211b88ee16938682042218596e4ee1%2112000020026811115%21sea%21NL%210%21A&curPageLogUid=FATsjuqZyCN2

Structural components

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Item #	Name	Specs.	Qty.	Price per piece (€)	Shipping (€)	Total per Schistoscope (€)	Link
5	Aluminum profile	20x20x350 mm	2	€ 6,11	€ 1,74	€ 13,96	https://nl.aliexpress.com/item/1005002537611699.html?spm=a2g0o.productlist.main.3.4a031ab0olaA8Y&algo_pvid=1cb8bec3-2328-4782-988c-cffaef372e91&algo_exp_id=1cb8bec3-2328-4782-988c-cffaef372e91-1&pdp_npi=4%40dis%21EUR%217.49%215.98%21%21%217.88%21%21%40211b88f016938699631611766e6877%2112000021048744254%21sea%21NL%210%21A&curPageLogUid=FJZzS7E2CY5k
6	Aluminum profile	40x20x300 mm	1	€ 11,87	€ -	€ 11,87	https://nl.aliexpress.com/item/1005002453496457.html?spm=a2g0o.productlist.main.51.1df46917MQxx1B&algo_pvid=2cc73904-420a-4249-9133-c5c1c338129d&algo_exp_id=2cc73904-420a-4249-9133-c5c1c338129d-25&pdp_npi=4%40dis%21EUR%2119.64%2119.64%21%21%2120.67%21%21%4021038eda16938702597077618e5c7a%2112000020710616520%21sea%21NL%210%21A&curPageLogUid=VMwzInqvGpVO
7	Aluminum profile	20x20x300 mm	3	€ 7,28	€ 1,74	€ 23,58	https://nl.aliexpress.com/item/1005002537611699.html?spm=a2g0o.productlist.main.3.4a031ab0olaA8Y&algo_pvid=1cb8bec3-2328-4782-988c-cffaef372e91&algo_exp_id=1cb8bec3-2328-4782-988c-cffaef372e91-1&pdp_npi=4%40dis%21EUR%217.49%215.98%21%21%217.88%21%21%40211b88f016938699631611766e6877%2112000021048744254%21sea%21NL%210%21A&curPageLogUid=FJZzS7E2CY5k
8	Aluminum profile	20x20x215 mm	2	€ 8,46	€ 1,74	€ 18,66	https://nl.aliexpress.com/item/1005002537611699.html?spm=a2g0o.productlist.main.3.4a031ab0olaA8Y&algo_pvid=1cb8bec3-2328-4782-988c-cffaef372e91&algo_exp_id=1cb8bec3-2328-4782-988c-cffaef372e91-1&pdp_npi=4%40dis%21EUR%217.49%215.98%21%21%217.88%21%21%40211b88f016938699631611766e6877%2112000021048744254%21sea%21NL%210%21A&curPageLogUid=FJZzS7E2CY5k
9	Aluminum profile	20x20x200 mm	2	€ 7,63	€ 1,74	€ 17,00	https://nl.aliexpress.com/item/1005002537611699.html?spm=a2g0o.productlist.main.3.4a031ab0olaA8Y&algo_pvid=1cb8bec3-2328-4782-988c-cffaef372e91&algo_exp_id=1cb8bec3-2328-4782-988c-cffaef372e91-1&pdp_npi=4%40dis%21EUR%217.49%215.98%21%21%217.88%21%21%40211b88f016938699631611766e6877%2112000021048744254%21sea%21NL%210%21A&curPageLogUid=FJZzS7E2CY5k
10	Aluminum profile	20x20x175 mm	2	€ 7,63	€ 1,74	€ 17,00	https://nl.aliexpress.com/item/1005002537611699.html?spm=a2g0o.productlist.main.3.4a031ab0olaA8Y&algo_pvid=1cb8bec3-2328-4782-988c-cffaef372e91&algo_exp_id=1cb8bec3-2328-4782-988c-cffaef372e91-1&pdp_npi=4%40dis%21EUR%217.49%215.98%21%21%217.88%21%21%40211b88f016938699631611766e6877%2112000021048744254%21sea%21NL%210%21A&curPageLogUid=FJZzS7E2CY5k
11	Corner brackets		16	€ 6,46	€ -	€ 6,46	https://nl.aliexpress.com/item/4000063076132.html?spm=a2g0o.productlist.main.25.7da814435etbcl&algo_pvid=19aa6fcc-ced3-47ff-abb9-b12fac77b6bf&algo_exp_id=19aa6fcc-ced3-47ff-abb9-b12fac77b6bf-12&pdp_npi=4%40dis%21EUR%2112.20%216.46%21%21%2112.80%21%21%40211b615316947241743964861eaa47%2110000000161993707%21sea%21NL%210%21AS&curPageLogUid=rLXXE8yB8w6T
12	Rubber feet	M4	4	€ 3,68	€ 4,96	€ 8,64	https://nl.aliexpress.com/item/1005003681572582.html?spm=a2g0o.productlist.main.25.5ca63b58zzCfgb&algo_pvid=e28b779e-7411-432f-84bb-55b8b368539a&algo_exp_id=e28b779e-7411-432f-84bb-55b8b368539a-12&pdp_npi=4%40dis%21EUR%214.71%214.61%21%21%214.94%21%21%40211b615316947243129446972eaa47%2112000026782305036%21sea%21NL%210%21AS&curPageLogUid=B0LszgvKN7rm
13	Spring	M5*15 mm	4	€ 0,43	€ 1,37	€ 3,07	https://nl.aliexpress.com/item/1005005974742507.html?spm=a2g0o.productlist.main.45.7bac5dd5iFG5OJ&algo_pvid=2046b9d0-bc3c-4736-8237-c5244236c177&algo_exp_id=2046b9d0-bc3c-4736-8237-c5244236c177-22&pdp_npi=4%40dis%21EUR%212.12%211.7%21%21%2116.27%21%21%40211b617a16939507018131128e6a33%2112000035130817674%21sea%21NL%210%21A&curPageLogUid=S3SDvNti9Aof
14	Hinge		2	€ 0,23	€ -	€ 0,46	https://nl.aliexpress.com/item/32953581270.html?spm=a2g0o.productlist.main.5.6b3668aaplRnSN&algo_pvid=2c0c1b08-6c85-4129-bd1b-7743bc25a72d&algo_exp_id=2c0c1b08-6c85-4129-bd1b-7743bc25a72d-2&pdp_npi=4%40dis%21EUR%212.94%210.46%21%21%213.10%21%21%40211b617a16939508408492869e6a33%2166382201404%21sea%21NL%210%21A&curPageLogUid=eFfJ6r2JXGj9
15	Lock plate		1	€ 0,46	€ -	€ 0,46	https://nl.aliexpress.com/item/32933924674.html?spm=a2g0o.productlist.main.3.412c3931eQBrTb&algo_pvid=9e3379fe-aa2c-4b70-85b0-87a244084bad&algo_exp_id=9e3379fe-aa2c-4b70-85b0-87a244084bad-1&pdp_npi=4%40dis%21EUR%210.70%210.46%21%21%210.74%21%21%40211b617a16939509787254501e6a33%2166224476012%21sea%21NL%210%21A&curPageLogUid=FMX9X8mry7T9

Mechanical Fastners

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Item #	Name	Specs.	Qty.	Price per piece (€)	Shipping (€)	Total per Schistoscope (€)	Link
16	Bolt	M2*6 mm	8	€ 1,84	€ -	€ 1,84
17	Bolt	M2*8 mm	12
18	Bolt	M2*10 mm	8
19	Bolt	M2*16 mm	2
20	Bolt	M3*6 mm	2	€ 5,75	€ -	€ 5,75
21	Bolt	M3*8 mm	19
22	Bolt	M3*12 mm	10
23	Bolt	M3*16 mm | countersunk	12
24	Bolt	M3*20 mm	4
25	Bolt	M4*8 mm	98	€ 6,29	€ -	€ 6,29
26	Bolt	M4*12 mm	4	€ 6,48	€ -	€ 6,48
27	Bolt	M4*24 mm	2
28	Bolt	M4*60 mm	3	€ 8,81	€ -	€ 8,81
29	Nut	M2	18	€ 2,33	€ -	€ 2,33
30	Nut	M3	11	€ 1,16	€ -	€ 1,16
31	Nut	M4	13	€ 2,33	€ -	€ 2,33
32	Ring	M3	9	€ 0,47	€ -	€ 4,23
33	Sliding nut	M3	2	€ 0,48	€ -	€ 0,96
34	Sliding nut	M4	102	€ 1,91	€ -	€ 1,91
35	Spacers	M2*5 mm	2	€ 0,23	€ -	€ 0,46
36	Spacers	M2*10 mm	4
37	Spacers	M2*15 mm	4
38	Melt insert	M2	12	€ 1,12	€ 1,81	€ 2,93
39	Melt insert	M3	14	€ 1,12	€ 1,81	€ 2,93
Optics
40	Condenser lenses		2	€ 23,17	€ 10,98	€ 57,32
41	Thorlabs C mount		1	€ 31,91	€ 10,98	€ 42,89
42	50 mm spacer		1	€ 21,25	€ 8,89	€ 30,14
43	Objective	4X	1	€ 12,61	€ 0,79	€ 13,40

Housing

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Item #	Name	Specs.	Qty.	Price per piece (€)	Shipping (€)	Total per Schistoscope (€)	Link
44	Backplate		1			€ -
45	Bottomplate		1			€ -
46	Light tower plate		1			€ -
47	Top plate		1			€ -
48	Front and side plate		1			€ -
49	Electronics plate		1			€ -
50	Window		1			€ -

3D printed parts

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Item #	Name	Print time.	Weigth.	Price per kilo (€)	Shipping (€)	Total per Schistoscope (€)	Link
51	Clamp	3 h, 06 min	0,033	€ 25,61	€ -	€ 0,85
52	Clamp mount	0 h, 56 min	0,010		€ -	€ 0,26
53	Light tower | Bottom	0 h, 55 min	0,008		€ -	€ 0,20
54	Light tower | Spacer 1	0 h, 57 min	0,009		€ -	€ 0,23
55	Light tower | Spacer 2	1 h, 17 min	0,012		€ -	€ 0,31
56	Light tower | Top	0 h, 26 min	0,004		€ -	€ 0,10
57	Sample stage	2h, 19 min	0,025		€ -	€ 0,64
58	Sample stage holder	5h, 57 min	0,066		€ -	€ 1,69
59	XY-motor mount	1h, 32 min	0,017		€ -	€ 0,44
60	Z-motor mount	2h, 16 min	0,024		€ -	€ 0,61
61	X-endstop mount | left	0h, 20 min	0,003		€ -	€ 0,08
62	X-endstop mount | right	0h, 20 min	0,003		€ -	€ 0,08
63	Y-endstop mount | front	1h, 30 min	0,014		€ -	€ 0,36
64	Y-endstop mount | back	1h, 23 min	0,013		€ -	€ 0,33
65	Z-endstop mount | top	0h, 54 min	0,008		€ -	€ 0,20
66	Z-endstop mount | bottom	0h, 54 min	0,008		€ -	€ 0,20

Electronics

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Item #	Name	Specs.	Qty.	Price per piece (€)	Shipping (€)	Total per Schistoscope (€)	Link
67	LED	1 W | Neutral white	1	€ 0,48	€ -	€ 0,48
68	LED heat sink		1	€ 1,11	€ 1,21	€ 2,32
69	Raspberry Pi HQ camera		1	€ 73,76	€ -	€ 73,76
70	Raspberry Pi Pico		1	€ 1,23	€ 1,23	€ 2,46
71	Male header pins	1x20	2	€ 0,23	€ -	€ 0,46
72	Female header pins	1x20	2	€ 0,71	€ 0,64	€ 2,06
73	Female header pins	1x8	6	€ 0,85	€ 0,64	€ 5,74
74	Custom PCB		1			€ -
75	Capacitor	100 uF	3	€ 1,28	€ 1,12	€ 4,96
76	MOSFET module	15A, 400W	1	€ 0,43	€ 0,91	€ 1,34
77	Power supply	RPD-60A	1	€ 22,63	€ -	€ 22,63
78	Raspberry Pi 3/4		1	€ 32,18	€ -	€ 32,18
79	SD card	Silicon Power NAND	1	€ 5,49	€ -	€ 5,49
80	Ventilator kit	for Raspberry Pi 3/4	1	€ 4,54	€ 5,66	€ 10,20
81	TPU	Google Coral	2	€ 56,60	€ -	€ 113,20
82	Rocker switch	33x25 mm	1	€ 1,12	€ 0,58	€ 1,70
83	Power socket	3 pin	1	€ 0,69	€ 2,69	€ 3,38
84	End switch		6	€ 2,21	€ -	€ 2,21

Wires and connectors

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Item #	Name	Specs.	Qty.	Price per piece (€)	Shipping (€)	Total per Schistoscope (€)	Link
85	Wire	22 AWG | 550 mm	2	€ 0,47	€ -	€ 0,94
86	Wire	22 AWG | 400 mm	1
87	Wire	22 AWG | 300 mm	4
88	Wire	22 AWG | 250 mm	1
89	Wire	22 AWG | 200 mm	4
90	Wire	22 AWG | 120 mm	2
91	Wire	22 AWG | 100 mm	1
92	Wire	10 AWG | 500 mm	2	€ 3,28	€ -	€ 6,56
93	Wire	10 AWG | 350 mm	1
94	Wire	10 AWG | 150 mm	2
95	JST connector	XH | female	20	€ 0,91	€ 0,45	€ 1,36
96	JST plug	XH2P | female	3	€ 0,61	€ 0,45	€ 2,28
97	JST plug	XH4P | female	4	€ 0,83	€ 0,45	€ 3,77
98	DuPont connector	2.54 mm | female	2	€ 0,16	€ 0,93	€ 1,09
99	DuPont plug	2.54 mm | female	2	€ 0,11	€ 0,93	€ 1,15
100	RS connector set	for RPD-60A	1	€ 6,97	€ 5,95	€ 12,92
101	Spade connector	10 AWG | 6.3 mm	7	€ 4,50	€ 1,89	€ 6,39
102	JST ring connector	JST FV | M3	1
103	USB cable	USB-C to wire | 500 mm	1	€ 0,47	€ -	€ 0,47
104	USB cable	USB to USB-C | 200 mm	2	€ 1,30	€ 1,89	€ 4,49
105	USB cable	USB to microUSB | 500 mm	1	€ 0,47	€ -	€ 0,47
106	USB cable	USB to microUSB | 300 mm	1	€ 0,47	€ -	€ 0,47
107	USB cable	Panel mount	2	€ 1,72	€ 2,15	€ 5,59
108	USB HUB	Waveshare USB HUB hat (B)	1	€ 17,52	€ 1,21	€ 18,73
109	HDMI cable	Panel mount	1	€ 7,05	€ 6,42	€ 13,47
110	Power cable		1	€ 0,75	€ 5,07	€ 5,82

Time

the required time to build the Schistoscope is around 30 hours. This includes the 3D printing, the assembly, the software installation and the calibration.

Tools

In order to build the Schistoscope, you will need the following tools:

• 3D printer
• Lasercutter
• Soldering iron
• Screwdriver set
• Allen key set
• Wire cutter
• Wire stripper
• Multimeter
• Computer with SD card reader
• USB keyboard and mouse
• screen with HDMI input

Skills

In order to build the Schistoscope, you will need the following skills: General design eningeering skills, including knowledge of CAD, 3D pinting, lasercutting, electronics, software installation and calibration.