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Bill of material (BOM)

The latest version of the BOM in excel can be found here.
This is a copy for easy reference:

BOM Marimbatron 05/06/2024
Part Item Qty  Price/piece
excl VAT
total price manufacturer link
Mechanical
CNC machined table 15mm plywood 2500x1220 mm 1  €            63,00  €    63,00 https://www.af.nl/voorraad/plaat/multiplex-populieren/prijslijst.htm
Lasercut body 6mm plywood 1200x800 mm 3  €            27,55  €    82,65 https://www.fablabenschede.nl/pricelist/
Lasercut sides & back leftover plywood 6mm (~800x70mm) & 3mm (~800x34mm) -
Top sheet a lot of failed 3D prints -
 total  €  145,65
Pressure sensors
Molding Xencast PX60 (pack of 1 kg) 2,5  €            25,00  €    62,50 https://www.easycomposites.eu/xencast-px60-medium-flexible-polyurethane-rubber
Molding white pigment (bottle of 20ml) 1  €              2,85  €      2,85 https://www.easycomposites.eu/super-white-epoxy-pigment
Electronics Flexible PCB (price at PCB house) 76  €              1,29  €    98,04 https://jlcpcb.com/capabilities/flex-pcb-capabilities
Electronics Conn_PinHeader_2x04_P2.54mm THT 76  €              0,08  €      6,08 https://www.conrad.nl/nl/p/w-p-products-male-header-standaard-aantal-rijen-2-aantal-polen-per-rij-4-944-13-008-00-1-stuk-s-737495.html
Electronics WS1812B RGB LED 76  €              0,12  €      9,20 https://www.tme.eu/nl/details/ws2812b-v5/led-diodes-smd-gekleurd/worldsemi/
Electronics C_1206 100nF 76  €              0,10  €      7,80 https://www.digikey.nl/en/products/detail/tdk-corporation/C3216X7R2A104K160AA/513967
Electronics R_1206 220R 152  €              0,01  €      1,22 https://www.conrad.nl/nl/p/tru-components-1585364-tc-1206s4f2200t5e203-thick-film-weerstand-220-smd-1206-0-25-w-1-100-ppm-c-1-stuk-s-tape-cu-1585364.html
Graphite sheet PET sheet 100 micron (overheadsheet for inkjetprinter) per sheet 4  €              1,34  €      5,36 https://www.bol.com/nl/nl/p/q-connect-overhead-transparanten-voor-inkjetprinter-ft-a4-pak-van-50-vel/9300000138752678/?Referrer=ENTcli_order_confirmation_be0ca95b-64bf-4802-9995-7dffac81d21e
Graphite sheet Graphit spray Kontakt Chemie 33 1  €            17,35  €    17,35 https://www.conrad.nl/nl/p/kontakt-chemie-graphit-33-76009-ag-grafiet-verf-200-ml-45750.html
Glue Pattex Powerfix glue 1  €              8,67  €      8,67 https://www.gamma.nl/assortiment/pattex-power-fix-montagekit-transparant-300-gram/p/B178754
 total  €  219,06
Sensor PCB
PCB from PCB house 1  €              4,11  €      4,11 https://aisler.net/
C1, C6 C_1206 10uF 2  €              0,45  €      0,90 https://www.digikey.nl/en/products/detail/murata-electronics/GRT31CC8YA106ME01L/5416847
C2 C_1206 1uF 1  €              0,23  €      0,23 https://www.digikey.nl/en/products/detail/tdk-corporation/C3216X7R1H105K160AB/569049
C3, C4, C5 C_1206 100nF 3  €              0,10  €      0,31 https://www.digikey.nl/en/products/detail/tdk-corporation/C3216X7R2A104K160AA/513967
D1 LED_1206 Red 2  €              0,21  €      0,42 https://www.digikey.nl/en/products/detail/w%C3%BCrth-elektronik/150120RS75000/4489939
D2 LED_1206 Green 2  €              0,21  €      0,42 https://www.digikey.nl/en/products/detail/w%C3%BCrth-elektronik/150120RS75000/4489939
J1, J2, J6 Conn_PinHeader_2x05_P2.54mm_Vertical_SMD 3  €              0,50  €      1,50 https://www.digikey.nl/en/products/detail/superior-tech/PHED-SS010G1ABONE-B300/16583458
J3, J4, J5 Conn_PinHeader_2x02_P2.54mm_Vertical_SMD 3  €              0,42  €      1,26 https://www.digikey.nl/en/products/detail/amphenol-icc-fci/95278-101-04LF/1534787
JP1, JP2, JP3, JP4 Jumper_1206 R_1206 0R 2  €              0,01  €      0,02 https://www.conrad.nl/nl/p/tru-components-1585351-tc-1206s4f0000t5e203-thick-film-weerstand-0-smd-1206-0-25-w-1-1-stuk-s-tape-cut-1585351.html
L1 L_1210 10uH 1  €              0,16  €      0,16 https://www.digikey.nl/en/products/detail/taiyo-yuden/CBC3225T100KR/2763316
R1 R_1206 1k 1  €              0,01  €      0,01 https://www.conrad.nl/nl/p/tru-components-1584217-tc-hp06w2f1001t5e203-thick-film-weerstand-1-k-smd-1206-0-5-w-1-100-ppm-c-1-stuk-s-tape-cut-1584217.html
R2, R3 R_1206 680R 2  €              0,01  €      0,02 https://www.conrad.nl/nl/p/tru-components-1584514-tc-1206s4f6800t5e203-thick-film-weerstand-680-smd-1206-0-25-w-1-100-ppm-c-1-stuk-s-tape-cu-1584514.html
SW1 Switch_Tactile_Omron 1  €              1,00  €      1,00 https://www.digikey.nl/en/products/detail/omron-electronics-inc-emc-div/B3SN-3112P/27856
U1 TQFP_64 ATSAMD21J18A-A 1  €              4,04  €      4,04 https://www.digikey.nl/en/products/detail/microchip-technology/ATSAMD21J18A-AU/4935901
 subtotal  €    14,39
  total 4 pieces  €    57,55
Main PCB
PCB per cm2 60  €              0,10  €      6,00 https://www.fablabenschede.nl/pricelist/
U4,U6,U3,U2,U5 Regulator_Linear_3.3V_1A 5  €              0,35  €      1,75 https://www.digikey.nl/en/products/detail/diodes-incorporated/AZ1117IH-3-3TRG1/5699682
C4,C5,C6,C7,C1,C3,C 2 10uF 7  €         -
J6,J10,J2 Conn_PinHeader_2x05_P2.54mm_Vertical_SMD 3  €              0,50  €      1,50 https://www.digikey.nl/en/products/detail/superior-tech/PHED-SS010G1ABONE-B300/16583458
C8 C_1206 100nF 1  €              0,10  €      0,10 https://www.digikey.nl/en/products/detail/tdk-corporation/C3216X7R2A104K160AA/513967
R5,R4 R_1206 1K65 2  €              0,01  €      0,02 https://www.conrad.nl/nl/p/walsin-wr12x1651ftl-wr12x1651ftl-thick-film-weerstand-1-65-k-smd-1206-0-25-w-1-1-stuk-s-tape-on-full-reel-3070149.html
R3,R2 R_1206 680R 2  €              0,01  €      0,02 https://www.conrad.nl/nl/p/tru-components-1584514-tc-1206s4f6800t5e203-thick-film-weerstand-680-smd-1206-0-25-w-1-100-ppm-c-1-stuk-s-tape-cu-1584514.html
Bridge1,Bridge2 -
SW1 Switch_Tactile_Omron 1  €              1,00  €      1,00 https://www.digikey.nl/en/products/detail/omron-electronics-inc-emc-div/B3SN-3112P/27856
R1 R_1206 1k 1  €              0,01  €      0,01 https://www.conrad.nl/nl/p/tru-components-1584217-tc-hp06w2f1001t5e203-thick-film-weerstand-1-k-smd-1206-0-5-w-1-100-ppm-c-1-stuk-s-tape-cut-1584217.html
J9,J5,J7,J8 Conn_PinHeader_2x02_P2.54mm_Vertical_SMD 4  €              0,42  €      1,68 https://www.digikey.nl/en/products/detail/amphenol-icc-fci/95278-101-04LF/1534787
D2,D1 LED_1206 2  €              0,21  €      0,42 https://www.digikey.nl/en/products/detail/w%C3%BCrth-elektronik/150120RS75000/4489939
U1 TQFP-32 ATSAMD21E18A-A 1  €              3,66  €      3,66 https://www.digikey.nl/en/products/detail/microchip-technology/ATSAMD21E18A-AU/4935886
C9 C_1206 1uF 1  €              0,23  €      0,23 https://www.digikey.nl/en/products/detail/tdk-corporation/C3216X7R1H105K160AB/569049
J4 CUI PJ-102B power jack connector 1  €              0,60  €      0,60 https://www.digikey.nl/en/products/detail/cui-devices/PJ-102B/281307
J11 Cliff_CL1166A 6.35mm mono jack 1  €              1,99  €      1,99 https://www.conrad.nl/nl/p/cliff-cl1166a-jackplug-6-35-mm-bus-inbouw-horizontaal-aantal-polen-2-mono-zwart-1-stuk-s-736034.html
J3 CUI UJ2-BH-BL1-TH USB2.0 type B connector 1  €              0,78  €      0,78 https://www.conrad.nl/nl/p/usb-connector-bus-inbouw-horizontaal-usbbu1bn-econ-connect-1-stuk-s-1883654.html
 total  €    10,37
User interface PCB
PCB per cm2 70  €              0,10  €      7,00 https://www.fablabenschede.nl/pricelist/
J1, J2 Conn_PinHeader_2x05_P2.54mm_Vertical_SMD 2  €              0,50  €      1,00 https://www.digikey.nl/en/products/detail/superior-tech/PHED-SS010G1ABONE-B300/16583458
SW1,SW2,SW3,SW4 Omron THT tactile switch 4  €              0,36  €      1,44 https://www.digikey.nl/en/products/detail/omron-electronics-inc-emc-div/B3F-4055/31799
LCD Waveshare TFT-LCD 1,28inch round 1  €            11,57  €    11,57 https://www.tinytronics.nl/nl/displays/tft/waveshare-1.28-inch-rond-ips-tft-lcd-display-240*240-pixels-spi
PETG Switchcaps 4  €              0,20  €      0,80
 total  €    21,81
Various
connectors IDC connector 4 position (I2C, power and WS2812B) 12  €              0,59  €      7,08 https://www.digikey.nl/en/products/detail/amphenol-cs-fci/71600-104LF/1523943?s=N4IgTCBcDaIGwAYCcBaALEgrADhQOQBEQBdAXyA
connectors IDC connector 10 position (sensors to sensor PCB) 11  €              1,02  €    11,20 https://www.digikey.nl/en/products/detail/amphenol-cs-fci/71600-110LF/1002061?s=N4IgTCBcDaIOwEYBsAGFBaBCUBkBiIAugL5A
cable 1.27mm ribbon cable 3M 3302/10 100 SF, per meter 15  €              2,06  €    30,90 https://www.conrad.nl/nl/p/3m-3302-10-100-sf-lintkabel-rastermaat-1-27-mm-10-x-0-08-mm-bont-per-meter-602860.html
connectors IDC connector 8 position (pressure sensor connector) 76  €              0,37  €    28,12 https://www.conrad.nl/nl/p/econ-connect-pv8oz-pinconnector-rastermaat-2-54-mm-totaal-aantal-polen-8-aantal-rijen-2-1-stuk-s-tray-1400934.html
power supply HN Power HNP18-050V2 5V 3A 1  €            13,99  €    13,99 https://www.conrad.nl/nl/p/hn-power-hnp18-050v2-stekkernetvoeding-vaste-spanning-5-v-dc-3-00-a-18-w-2355797.html?searchType=SearchRedirect
USB cable USB type-A to USB type-B 1  €              2,49  €      2,49 https://www.conrad.nl/nl/p/digitus-usb-kabel-usb-2-0-usb-a-stekker-usb-b-stekker-3-00-m-beige-ak-300102-030-e-678044.html
 total  €    93,78
 grand total  €  548,22
 ex. VAT