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    What grease do yall use on your ballscrews?

    What kind of grease do yall use on your ballscrews? Mine have zerk fittings on them, but I dont know what kind of grease to use, but I feel like I should be using something.
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    How bad is it to use TiALN coating on aluminum parts?

    Ive got some TiALN coated carbide ball endmills I would like to use for some 6061 parts for a rush job. Rush as in they want them tomorrow so it will run all night. I understand TiALN created an aluminum oxide coating when used, and is not recommended for machining aluminum. How bad is it for...
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    how to fix chatter in aluminum with extra deep cut HSS - [solved - lower rpm]

    Ive got a 2in deep pocket that im trying to finish and it just screams im clearly doing something wrong and want to know what yall would do differently? I rough it in multiple steps, but i would like to finish it at full depth my feeds n speeds 1/2" 4 flute 2" flute length HSS - pocket is 2in...
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    5in facemill leaving ugly patches

    Ive got a SEHT insert 5in diameter facemill that leaves a beautiful finish, except randomly it will leave an ugly patch. It doesnt happen every pass or every part. You cant feel it at all, but it looks bad. It seems to always be on the side of the part where the inserts enter the material. It...
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    How easy is it to disassemble Boyar Schultz 618 without letting the magic out

    Just purchased a little Boyar Schultz 618 it sat for 5+ years before I bought it and is now dirty and full of old oil and lube I want to disassemble it to clean it and re oil/ lube How easy is it to disassemble one without "letting the magic out"? It seems that the table just sits on a V rail...
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    1 big rotary phase convertor or a small one per machine

    Ive only got single phase 240, need 3 phase Looking at a used Atlas Copco air compressor, and a used cnc mill plus a bridgeport and probably a bigger lathe down the line. Is it better/ more economical to get one big rotary phase convertor for the whole shop, or get a smaller one per machine?
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    Tormach microArc 4th axis any good?

    Im looking to get a 4th axis for my mill Im not really looking for simultaneous, more so 3 + 1 so I can do 4 sides of a part in one setup I do a lot of parts with holes and features on all 6 sides, so instead of 6 setups, it would be nice to do the bulk of it with a 4th axis I am liking this...
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    can you heat up UHMW in an oven to un-banana it?

    Just made two 4"x6"x.75" parts in the mill. Things are swiss cheese, 45min cycle each. Take part out of the vise, go to flip them over an hour later to deck off the back, and the damn things are bananas now. They curled up 30 thou on the ends. and it was dead flat before I took it out of the...
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    Do slitting saws with side teeth work better than normal blades in plastic?

    Ive got a bunch of UHMW parts to part off. I order thicker stock than I need so I have something to hold in the vise, then part them almost all the way off with a slitting saw, and finish with a hack saw so the part doesnt go flying Ive been using standard HSS slitting saw blades, and the UHMW...
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    Drilling 40xD holes in UHMW. How to not get melty melty

    Good morning, I have a bunch of small diameter, but deep holes to drill in UHMW that are roughly 40 times D deep They are 21ga (.159) blind holes 6.25in deep. The only drill I could find this long only has flutes the first 1.5in so i have to peck. Object moved I also have a bunch of smaller...
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    Steel or aluminum for CNC mill enclosure?

    I am working on designing and building an enclosure for my CNC mill I am trying to figure out the best metal for building the enclosure out of. I will be TIG welding and bending it. The big question is whether to go with steel or aluminum. The current choice is between 5052 aluminum 0.063"...
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    best metal for building a mill enclosure out of? insights?

    I am working on designing and building an enclosure for my PM-30MV conversion (mill) I am trying to figure out the best metal for building the enclosure out of. I will be TIG welding it and possibly do some bending. 3105-H14 aluminum, painted both sides 0.063" thick 3105 H14 White Painted...
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    Are carbide endmills better at wearing down in diameter vs HSS?

    Got some newbie questions for yall I only cut aluminum on my mill I have always ran HSS tools/ endmills My problem is that new endmills make the outer dimensions of parts undersized, and after a while the tool wears in and the parts start becoming oversized (new tool cuts too much, old tool...
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    Can I thread mill M16x1.0 with a M6x1.0 thread mill?

    Can I thread mill M16x1.0 with a M6x1.0 thread mill? I need to make a bunch of M16x1.0 internal threads in 6061. Can I use a M6x1.0 thread mill? Its the same threads/mm I have only used the single point cutter ones, never the multi ones Object moved thanks
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    What parts cleaner do you use to get coolant and oil off aluminum?

    What parts cleaner do you use to get coolant and oil off aluminum? As well as aluminum chips/ dust. I am struggling to find a good parts cleaner for aluminum that doesnt leave a residue. I have one of those recirculating pump parts cleaners, but I need help finding a parts cleaner solution that...
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    how do you face a shelf in Fusion360 without it cutting where it isnt supposed to?

    Yes I know fusion has their own forum, but I would like to get a reply this week ;) I am trying to face off a shelf. This means there is a wall I dont want it to mill, but Fusion really really wants to cut into it. 2D adaptive doesnt work, because I want nice straight tool marks, not swoopies...
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    How do you make machined delrin not look like poop?

    How do you make machined delrin not look like poop? <SOLVED: Use new cutters> I'm trying to machine some delrin and am struggling to get a nice surface finish. Side-milling works fine, but I cant figure out how to face it well. It leaves little fuzzies and isnt nice and smooth like aluminum. It...
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