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Tabletop Foam Cutter

coffeman500

July 18, 2018

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Description

The cutter uses a series of opamps to generate a PWM signal with a variable duty cycle that drives a power mosfet. Parts: * [Power Switch](https://www.amazon.com/gp/product/B01BTTOEQ6/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1) * 3x 10k Resistors, 2x 4.7k Resistors, 1x 470ohm Resistor * [10k Potentiometer](https://www.amazon.com/MCIGICM-potentiometer-linear-WH148-Shaft/dp/B0791GYLBZ/) * .1uF Capacitor * Red LED * [30G Nichrome Wire](https://www.amazon.com/gp/product/B06XCBFN6K/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1) * [LM324AN](https://www.ebay.com/itm/USA-5PCS-National-Semiconductor-LM324AN-LM324-Low-Power-Quad-Op-Amp-New-IC/192575025357) * [P30N06LE](https://www.amazon.com/Jekewin-N-Channel-Power-Mosfet-220/dp/B071Z98SRG/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1531936784&sr=1-1-catcorr&keywords=p30n06le) * [Terminal Blocks](https://www.amazon.com/gp/product/B071DN7GQ5/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1) * [12V 2A Power Supply](https://www.amazon.com/gp/product/B019Q3U72M/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1) * [Female Power Plug](https://www.amazon.com/gp/product/B073W4V9VB/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1) * [4cm x 6cm Protoboard](https://www.amazon.com/Uxcell-a14041800ux1143-Double-Protoboard-Prototyping/dp/B0166GCD42/ref=sr_1_4?ie=UTF8&qid=1531936876&sr=8-4&keywords=4cm+x+6cm+protoboard)

License:

Creative Commons - Attribution