Thread: MDF Problems
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30-12-2011 #1
Hi everyone. I have sourced and cut various makes of MDF now and i am having the same problem with all of them, and that is the edges are furring quite badly. Is there a type of MDF i can use that leaves nice crisp edges? I need to stock 4, 6, 9, 12 and 18mm. I am aware that spindle speeds etc can cause the furring but have also tried slowing right down and speeding up to try and get round this...but no joy. I have used a straigh twin flute bit and a single flute upward spiral but am getting the same results. I am fairly new to CNC and everthing i do is a bit trial and error but need to get this sorted. Can anyone help me?....please? :) Sean
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30-12-2011 #2
Is it because you are using damp MDF?
James
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30-12-2011 #3
What speeds & feeds DOC are you using or have used.?
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30-12-2011 #4
Try MR MDF
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31-12-2011 #5
Erm, if I'm interpreting what appears to be an oxymoron correctly you tried increasing the spindle speed and reducing the feed rate, or vice versa? For MDF you want quite a high chipload, so a relatively low spindle speed with a high feerate. The swarf should look like chips not dust. If it's dust the cutter will not last long at all.
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