Remix of MPCNC Tangential Knife

thingiverse

Update 12/2/2017 Replaced Olfa blade holder with MPCNC_TN_OlfaBladeHolder_Rev73.scad to add recessed M3 nut traps for cover. Also added a version for mini utility blades MPCNC_TN_MiniUtilityBladeHolder_Rev14.scad Update 11/30/2017 Added MPCNC_TN_OlfaBladeHolder_Rev72.scad for using Olfa blades. There is a dimensioned image showing the variables used that you can change. I did not make a STL file of this, since I am not sure whether the dimensions for the blade I have are different than others. Update 11/22/2017 #2 Simplified the design for using 8mm Rod instead of the M8x70mm bolt. Files to use for this are MPCNC_TN_8mmRodBlade_Holder_Rev32.stl and M8_Rod_Collar_Rev1.stl Update 11/22/2017 I made a version 20mm shorter which is a simpler design & should work better. Use MPCNC_TN_ShortBlade_Holder_Rev22.stl. This would use the M8x70mm length bolt still. This remix has not been tested yet, so use at your own risk. I have printed the parts & test fit a Stanley box cutter blade in the test print as shown in 3 of the photos. This is a remix of the Blade holder, bolt clamp & blade clamp. I modified this to be able to make the bolt closer to the blade & hopefully make it more stable. I also changed the blade clamp to cover more of the sharp blade. The blade clamp also has a slight ridge to keep the blade in line. I also changed the notch in the blade holder where it catches 1 of the notches on the blade. That was a little too tight for me. If you want to test the fit of the blade, print MPCNC_TN_Blade_Holder_Test_Rev21.stl. This should be less than a 20 minute print. If you are using the M8x70mm Hex bolt Cap screw, the parts you want to print are MPCNC_TN_Blade_Holder_0mmAdd_Rev21.stl. If you want to use M8x80mm use MPCNC_TN_Blade_Holder_10mmAdd_Rev21.stl or M8x90mm use MPCNC_TN_Blade_Holder_20mmAdd_Rev21.stl. I designated them this way because the machine mount I am going to use will probably be longer bolts. The bolt length can be changed in the openscad file by adjusting the variable Len_Add to a value from 0 to 20. See the original design: https://www.thingiverse.com/thing:2624654 for further details on this design.