What I am speculating is that the two screws that affix the grinder base to the endcap of the motor may be exerting a tension on the endcap, and that tension would ever so slightly pull the lower burr away from the upper burr, causing the grind size change (or zero point change) -- the endcap carries the lower ball bearing which in turn ...
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This grinding machine can be made from a cordless cut-off grinder and < $155 in parts. The new invention is demonstrated to be able to cut custom screws with variable (i) …
The grinder sits 5.5" high above the shelf clamp. Total height of unit is 11.5" high. It features a wooden handle at the end of the cranking arm. The depth of the unit is …
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FORM GRINDING FOR ROTOR LOBE SURFACES OF TWIN SCREW COMPRESSOR ON HORIZONTAL CNC GRINDING MACHINE Van-The Tran Department of Mechanical Engineering, Hung Yen University of Technology and Education, Hung Yen City, Vietnam E-Mail: vanct4.hut@gmail ABSTRACT Most rotors of twin-screw compressors are ground by a horizontal form grinding machine.
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This grinding machine for compression screw manufacturing can be made from < $ 155 in parts and the cost of a cordless cut-off grinder (~ $ 130). The new invention is demonstrated to be able to cut custom screws with variable (i) channel depths, (ii) screw diameters, (iii) screw lengths, (iv) pitches, (v) abrasive disk thicknesses, (vi) the ...
The tightness of the two screws does affect the lower burr position, because these screws put stress on the lower endcap that the lower bearing sits on. (image to show the standoff, not my actual grinder) The endcap does deflect. I noticed that the out-of-box zero point is at exact 0 on the scale. Then at reinstalling the base with the two ...
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