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  1. Replies
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    Maybe his cut path arc went across the board. A...

    Maybe his cut path arc went across the board. A cut path must separate the board into two pieces. So, it has to either be a closed curve with an inside and an outside, or a cut across the board.
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    Make sure you bolted the drive belt assemblies...

    Make sure you bolted the drive belt assemblies down between the alignment tabs. Maybe the keyboard side of one of them is up on a tab. Otherwise, I guess it would be the level head problem.
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    If my memory serves, the machine measures the...

    If my memory serves, the machine measures the position of the rotary jig plates and not the dowel itself.
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    I do not think it was the feather. It appears to...

    I do not think it was the feather. It appears to be a change in depth. My guess would be that something physically moved during the carve.
  5. Thread: ER20 spindle

    by bergerud
    Replies
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    1,044

    It was the ER20 spindle that I had made. It was...

    It was the ER20 spindle that I had made. It was not too big. In fact it is the same dimensions as the CT. It is what I use. The ER11 that I also had made was not a spindle but an adapter which fit...
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    Were you using a 1/16" long carving bit? These...

    Were you using a 1/16" long carving bit? These bits bend into the grain and do exactly what I see in your picture. With the rotary, the carving is with the grain as opposed to normal carving which is...
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    I have cutout many such parts out of cast acrylic...

    I have cutout many such parts out of cast acrylic and some of UHMW. I suggest you use a short shank, two flute bit like in the link.

    ...
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    I agree, all in the fun of a challenge. I hope it...

    I agree, all in the fun of a challenge. I hope it carves ok. Note that you could add more detail to the engine. Parts that stick out the sides (but are still under the 3 inch diameter) could be added...
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    Nice, I see you got the same wave artifacts. I...

    Nice, I see you got the same wave artifacts. I wonder if they carve. Probably.
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    Jet Engine Rotary

    I thought I would give this a try. I have not used Designer in awhile. I made an outline and extruded it. Then copied and pasted the extrusion into a rotary project. (I also made a pattern from the...
  11. If the machine is behaving erratically during the...

    If the machine is behaving erratically during the start up, it may simply be a software issue. Have you tried re-formatting and re-flashing the card?
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    You need to use all arcs.

    You need to use all arcs.
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    Go with the 3/8. Bigger is ok as long as you do...

    Go with the 3/8. Bigger is ok as long as you do not break through the side.
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    The symbol font works for me in 3.106. I get...

    The symbol font works for me in 3.106. I get Greek on the board.
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    The machine does the board thickness routine when...

    The machine does the board thickness routine when the carving/cutting is more than 1/2" deep. It is then that you have to jog to line up a touch hole. After the bob down the hole, the machine will...
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    The machine is supposed to bob the bit into the...

    The machine is supposed to bob the bit into the one of the holes in the side of the carrier; not stall into the top of the side. If you use the blocks, the machine will behave as it would with a...
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    Another method is to cover areas which you do not...

    Another method is to cover areas which you do not want the bit to touch with 0.00 depth carve regions. (The whole region must be 0.00 depth region.) The bit will "jump" over the region.
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    Where you put the board in the UCB is mostly up...

    Where you put the board in the UCB is mostly up to you. If you have a spot where you would like the bit to touch you can put that spot adjacent to one of the touch holes in the side. Otherwise, I...
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    When slippage occurs with multiple passes, we get...

    When slippage occurs with multiple passes, we get stair stepping. Since you made multiple passes and there seems to be no stepping, I would think that either the board slipped before the cutting...
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    Was this a single pass or multiple pass cutout?

    Was this a single pass or multiple pass cutout?
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    I would wonder about the lead screw on the far...

    I would wonder about the lead screw on the far side. Make sure it is turning and check that the nut on the head is not stripped.
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    Remember that the machine thinks the carving size...

    Remember that the machine thinks the carving size is whatever the board size you set in Designer. It will only let you jog to areas which keep the carving (virtual board in Designer) on the measured...
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    The right switch is only for the cut motor. The...

    The right switch is only for the cut motor. The left switch causes the computer to pause like pressing the stop button. Your cut motor cut out but the computer kept "carving".

    Sounds like a good...
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    Under normal operation, the switch should be...

    Under normal operation, the switch should be always closed. If you have opened the cover often to pause the machine, it might explain the burnt out switch. This causes arcing in the switch. The...
  25. The 1/64th was because each face edge was also...

    The 1/64th was because each face edge was also being cut down 1/64th as the sphere was being carved. The cube was getting smaller as the procedure progressed.
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