Use of MDF

Use of MDF

Home Forums Beginners questions Use of MDF

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  • #191691
    Colin LLoyd
    Participant
      @colinlloyd53450

      What are the opinions of MEW subscribers on using high density MDF for various packing and other purposes in lathe milling work? By high density MDF I mean that used to make laminate flooring. The high density MDF is faced with very hard-wearing laminate surfaces and I've found that making packing pieces to raise various vices and tool holders is certainly both quicker and easier than making these in metal for those one-off applications.

      But that is just the opinion of a novice – so would like to hear the opinions of more experienced engineers as to the pros (if any) and cons of using such material.

      #7640
      Colin LLoyd
      Participant
        @colinlloyd53450
        #191694
        Capstan Speaking
        Participant
          @capstanspeaking95294

          As a one-off with no suds involved, why not?

          There is the risk it could crush under heavy load and it might allow chatter..

          #191697
          JasonB
          Moderator
            @jasonb

            Do be careful using laminate flooring, the coatings are very hard and abrasive and I have even seen the odd sparks comming off my SCMS when cutting in dim light. Same goes for melamine faced board "conti board" I often trim this with indexable carbide router cutters and you can see a marked increase in the wear at the areas where the surface comes along the cutter it also takes teh edge of TCT saw blades quite quickly.

            A good quality MDF preferably the green MR MDF has no surface coatings is as dense as the core used for flooring can be used but it is still quite abrasive to HSS tooling. I do use it as packing but try to use smaller bits so the work overhands the edge.

            #191698
            V8Eng
            Participant
              @v8eng

              The Chippies at work always wore filter type face masks when working on it.

              Since then I've steered well clear of the stuff.

              #191699
              Steven Greenhough
              Participant
                @stevengreenhough56335

                I used mdf as an impromptu faceplate before I owned the real thing. Turned it to the chuck diameter on a threaded rod spigot (mask worn and vac rigged up to such the shavings/dust straight of the tool) then to be mounted it was held it in the outside jaws. Used it to drill and bore holes in little boiler end caps. Worked out ok. Would use again for little/lightweight pieces.

                Edited By Steven Greenhough on 30/05/2015 14:28:58

                #191701
                Neil Wyatt
                Moderator
                  @neilwyatt

                  Surprisingly well finished and sized, but do watch the dust, it's nasty so use a facemask.

                  Neil

                  #191725
                  Gordon W
                  Participant
                    @gordonw

                    I use quite a lot of the laminate flooring, 'cause I have a lot left over. Good for packing in the drill viceand levelling in 4 jaw etc. Surprisingly accurate on thickness, last I checked was 8mm by mike with no difference over 150mm. I use a jigsaw with a metal cutting blade and have no probs.

                    #191727
                    Tim Stevens
                    Participant
                      @timstevens64731

                      The dust can be reduced if you oil the MDF, with WD40 or something similar. I have used it as packing and as a prototype material to practice on before cutting into a block of metal or plastic. And it is excellent on the drill table as it is properly flat and takes punishment. It is also handy for measuring cutter diameters in a boring head when making spherical ends on bar. Just bore into the MDF on the flat for about 2mm and you can measure the material left in the middle quite accurately enough.

                      Cheers, Tim

                      #191823
                      Ian S C
                      Participant
                        @iansc

                        I use it for placing under work when drilling, and I'v used it for mocking up parts for my Stirling Engines before attacking the design in metal.

                        Ian S C

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