Recent content by Paul135

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    LibreCAD

    Blender is pretty amazing. Some people use it for meshing their OpenFoam models. I don't think I have the time to really get into Blender as well. It is a big subject in its own right.
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    LibreCAD

    I have had many years of experience designing and running physical fluid dynamics simulations, including wind tunnel work. This type of modelling I found, provided a very high degree of confidence to the clients of our consultancy. The CFD was quite complementary however in being able to put...
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    LibreCAD

    Tim, what you say about results being off highlights the snake-oil aspect. From what I have seen in my working life the proprietary vendors are not transparent on the mathematics encapsulated in their code. This another reason I like open source software. Finite analysis is certainly one of...
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    LibreCAD

    I have noticed that quite a few CAD programs include CFD and finite analysis. I would agree with you about snake oil as often they are a bit shy on the code origins. The lack of snake oil is one the features I like about FreeCad. It has a workbench for linking into OpenFoam, a very powerful...
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    LibreCAD

    Hi Tim, I use the QCad community version, so still free and with no worries about it suddenly being terminated like DraftSight (which was very good).
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    LibreCAD

    As a Linux user most of the CAD programs mentioned are not available, hence I use QCAD for 2D and am bit by bit learning FreeCad for 3D. I do have LibreCad installed and have a play with it now and again. However I would not go back to Windows as a main operating system again.
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    LibreCAD

    Hi Baron, If like me you come from a 2D CAD background, yes, FreeCAD seems very awkward. The difficulty I find comes from the 2D on the "paper" aspect going to expressing your ideas in a 3D model. I have read often of this difficulty. However I persist with trying to learn to use it as it can...
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    LibreCAD

    Hi Peter, Short answer no. Unfortunately LibreCad is only 2D and has not had any development for some years. For 2D you would be better with QCad, which in its community edition is free but again does not do STL. To create your STL files you would be better to go with FreeCad, also free but a...
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    Cx701 lathe report

    Hi K2, are you sure it is the board and not the brushes on the motor? For a new board have a look here: https://www.axiscontrols.co.uk/products-services/products/dc-variable-speed-drives/kb-electronics-dc/kbic-range/kbic-240d-dc-motor-speed-controller I bought the KB board for my lathe there...
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    Cx701 lathe report

    Congratulations on getting the lathe running. Can you confirm please which board you got sent as the replacement? Is it a genuine KB electronics board? I ask from the point of view that there will be other CX lathe users reading this thread. My own experience of the KB board, which I...
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    Cx701 lathe report

    A lot of old electronics does not seem to turn on due to the electrolytic capacitors. They go bad with age effectively drying out, some spilling out their liquid.gel. I have rebuilt quite a few power supplies and recapped motherboards etc to restore electronic equipment and computers.
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    Cx701 lathe report

    I took a look at the Modern Tool lathe in stock that was pointed out earlier . Looks a nice machine, a belt and pulley version of the CX type lathes discussed here. Take a look at its speed range though, it only goes down to 150rpm. A bit hairy for for single point thread cutting from right...
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    Cx701 lathe report

    Hi Norman, I don't know a great deal about the Sieg lathes other than what gets discussed on the Model Engineer magazine's website in the UK. People seem very happy with them and also with what appears to be very good service from Arc Euro Trade. My own machines came from SPG Tools who were a...
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    Cx701 lathe report

    I write the following hoping to help other new users with electronic DC motor speed control. When I bought my lathe and mill which are similar to the CX machines discussed here, the supplier was most insistent that when starting the machine the speed potentiometer (knob) should be turn all the...
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    Cx701 lathe report

    I fully understand your position, it is certainly BusyBee's responsibility to deal with the faulty board and I would not expect to repair it in your position. It is disgusting service. Do you not have any consumer rights in Canada? For the benefit of others who may have the same KB...
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