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Recent content by sparkout

  1. sparkout

    Efficient finishing/cleaning method for DOM tubing

    As your first thread mentioned, both sandblasting and wire wheeling are time consuming, I've done surface finishing with a wire wheel mounted on a centerless with good success, and great throughput times, more pressure can be applied to piece through the regulating wheel than ever could be done...
  2. sparkout

    need help with antique centerless grinder

    The deposits on blade we call "gauling", basically this is from to much heat at grind point and or pressure being applied on blade or the lack of lubricity in coolant, try to raise part height as far above center as possible without causing chatter, if this doesnt work, look into the lubricity...
  3. sparkout

    Getting concentricity from centerless grinding

    Hello robbiec, Helped a customer of ours setup their c-less to grind something similar to yours, are you infeeding or thrufeeding this part, whats the tir before grinding? There is a possibility there is to much grinding pressure and you are distorting part in grinding process, also, it's...
  4. sparkout

    need help with antique centerless grinder

    Hey Recker, Make sure your mirror image is also in your Workblade, also give the reg head about a half degree tilt to hold part to stop. Have had great success grinding aluminum using a60 grit plastic bonded wheel by Research Abrasives, also Perkins, acoolant mfg. here in Chicago area makes a...

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