Hotwire cutter (foam/wood)

Description

This Tool I Designed Is Able To Cut Styrofoam And Soft Wood (Balsa, Spruce/Pine). Working Part Length Is ~38Cm. You Can Apply The Vertical Scaling And Modify Length Of The Regular Middle Part If You Need To Get Other Length Of The Tool (This Part Could Be Not Used At All, Or Installed Twice). Power Supply Is Connected To Washers On M8 Threaded Rods, Which Is Isolated From The 12Mm Aluminium Tube By Capton Tape. Nichrome String Is Attached To Washers, Wich Is Tightened Between Nuts On The Rods. Length Of The String Between Washers Should Be ~1Cm Shorter Then Dimension Between Rods (For Pre-Tension). I Use 0.3Mm Nichrome String At 12V, But You Can Experimentally Choose Other Combination For Your Applications. For Cutting Wood, Use Thicker String And/Or Higher Voltage, Than For Styrofoam. If Temperature Is Not High Enough, Move Instrument Back And Forth Like When Sawing. I Found It Better For Cutting Thin Wood Parts With Hot Wire Rather Then With The Jig Saw Or Dremel Tool Because This Does Not Provide Any Noise And Dust (Convinient For Not Disturbing Anyone, And Proceed With Modelling Even At Night). Please Take Precautions When Handling Electricity. Be Sure To Test The Circuit Before Applying The Working Voltage. Ensure Twice, That You Eliminated The Possibility Of Electrical Contact Between The Rods And Aluminium Tube (Especially After Tensioning The String). Upd: Added Separate .Stl For Every Part Without Brim And .Stp Without Brim. But I Recommend To Print The Handle With Brim Anyway. If Any Questions Or Suggestions, Please Leave A Comment.

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