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  • Users: Jacc
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  1. Jacc

    AC motor as generator holding torque

    Hello I have a link here to a thread in the Fluid Power forum which is really more electrical. https://www.eng-tips.com/viewthread.cfm?qid=446610 As I understand it a closed circuit hydraulic system powered by a AC motor is used to raise and lower a bridge. When lowering the bridge the closed...
  2. Jacc

    Improve response of A11 LS pump

    Hello I have a crane with large cylinders (rod side volume 160 L or 42 gallons), running A11 260 pumps with LS. What I've noticed is that the response when lowering the boom is slightly slower (a few tenth of a second) than when raising the boom. Here is what I think: When raising the boom...
  3. Jacc

    Extract attributes

    Hello I have created position bubbles with containing information about components as attributes. Now I would like to extract those in to a text file. The help files contain a section about "ExtractBlockAttribute" where it is referred to a template file. However there is no information anywhere...
  4. Jacc

    Multiple select with or without Control key

    Hello I have used DS for a while now, getting used to pressing the control key to select multiple entities (clicking one by one, not using the select rectangle). However, after the latest update it has gone back to being able to select multiple entities without holding down the control key. I...
  5. Jacc

    Field with DIESEL expression does not update

    Basically I want a mtext field that is linked to a attribute in an object. Easy enough, you just take Edit Field -> Objects -> Object and select the object and the attribute you want. The field formula looked something like this: %<\AcObjProp Object(%<\_ObjId 2130252728>%).TextString>% Then I...
  6. Jacc

    45 degree cut on suction pipe

    Most hydraulic books I have looked in have entry loss coefficient listed for numerous configurations of cones or trumpets. However I have never seen a figure for the straight pipe with a 45 degree cut althought I have seen it being used many times. Also I've been told how important it is to do...
  7. Jacc

    Refresh AutoCAD table / External file

    I'm using the Attribute Extraction Wizard both to make AutoCAD tables and external files (although not both at the same time always). AutoCAD tables are easy to update, you just select the table, right click and select Update Table -> Refresh Only. But when I want to update the external file I...
  8. Jacc

    Mathcad slow scroll speed

    I just installed Mathcad (30 day trial) and the scroll speed is just ridiculous. It's so slow it's no point using it. I have a feeling this is a common issue, yet it's hard to find info about it. How do I get it fixed?
  9. Jacc

    Excel help files missing

    I downloaded som stupid heat exchanger freeware and played around with, I assume it was written in VB6. After that, the text that came up when selecting a keyword in Excel VBA and pressing F1 looked different and there was an error message. So I uninstalled the stupid heat exchanger software...
  10. Jacc

    Air/Oil cooler, curve fit

    I can find it somewhat annoying when some fairly stressed and ignorant person steps into my field of work and asks for a "quick and dirty solution" or a "quick estimate" totally ignoring the complexity of the topic and doesn't even try himself. Well, that being said... Ok, I'm not stressed. I...
  11. Jacc

    Challenge for you clever people, duty cycle in Excel!

    Hello people! I'm reasonable skilled in Excel and for the first time in forever I'm stuck. I want to create a column with ones and zeros in a "duty cycle" fashion. By changing two parameters I want to be able to change the duty cycle and the period of the ones. If someone manage to do this with...
  12. Jacc

    Slider callback plot flicker problem...

    Hey hey hey! Whenever I want to analyze a mathematical function with multiple parameters I make a quick GUI in Matlab. I assign sliders to each of the parameters I want to change and their callback functions replot the function with the new value. Here is a very simple example: Main Program...
  13. Jacc

    Kawasaki KMX32? Kobelco 916?

    Anyone familiar wiht the Kawasaki KMX32 mobile valves? I'm having a bit of a problem with a Kobelco 916. Support for this in Scandinavia is limited.

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