Tagged: assemblies RSS

  • yakboy 4:33 am on November 24, 2009 Permalink | Log in to leave a Comment
    Tags: assemblies,   

    Blocks need some help please 

    Hi Guys, Getting on with my suspension layout using Blocks. In the tutorial it mentions “Link to File”, not overly informative, so I thought I would post on here. After I have made the sketch, saved it, made Block and saved that too….. Then applied the block into my layout sketch… now when I want to adjust a dimension, I’m just editing the block there and then, but in my mind it should be linked back to the original sketch so that is updated to.. am i right???? is that the correct way to do it??? guidance will be very much appreciated… thanks.  PS, once I’ve got this last bit sussed i’ll post the model up here for veiwing…… should be a laugh anyway :-)

     
    • Ben 4:38 pm on November 24, 2009 Permalink

      Yes they should be linked and ‘parametric’ it may require more than one rebuild to make it all work and in my experience it is necessary to have both the assembly with the layout sketch and the part open at the same time for this to work properly

    • yakboy 8:12 pm on November 24, 2009 Permalink

      Hi, Ben, which file should be used as the linked file?? I tried to link but was only given the option of linking to the solidblock file of each part?? is this correct? I’m confused between the layout sketch, the sketch of each part file and the block file of each part !!!! hair pulling out time !!! thanks in advance..

    • Ben 9:01 pm on November 24, 2009 Permalink

      Can you attach a file here (Don’t forget to attach all files for this i.e. parts, assembly(s), drawings. Best way is to save it all into a folder and then zip up the folder) ZIPPING the file before uploading is critical and or use the solidjott addin and attach the model

    • yakboy 1:52 am on November 25, 2009 Permalink

      Right, I’ve saved,zipped,scratched my head…. lots so hopefully it’ll work ok. If it doesn’t I’m a numpty !!!!
      Something just isn’t working, I’ve zipped using WinZip, I have a zipped folder containing all the parts etc of my suspension, when I hit the Browse button I can navigate to the folder, but can’t upload just the folder, as soon as I select the folder it just opens it and does not insert the link to upload….. any answers??

    • Ben 8:38 am on November 25, 2009 Permalink

      Something occurred to me. There is a setting in windows that tells it to open zip files like a folder. I have no idea where this setting is but if you can find it and turn it off then you should be able to upload…

      Here is the file…
      Attachment – solidjott

    • Ben 10:18 am on November 25, 2009 Permalink

      Well the file is not quite all there unfortunately so here is what we need you to do Click ‘file-pack and go’ and choose the save to zip file option and put it somewhere where you will not forget it. Next try and attach it to a comment here and if that fails email it to me and I will attach it.

      Also let us know what assembly sketch is driving the part sketches

    • yakboy 4:33 pm on November 25, 2009 Permalink

      Hi Ben, just removed and reinstalled SW 2009, haven’t re installed solidjott yet as I’m waiting to see how stable my computer is, all this firewall, anti virus etc etc I really don’t understand, so I’m going to run things how I know cos it works… for now anyway!! you said in the last reply “Also let us know what assembly sketch is driving the part sketches”" does this mean that to put all the blocks together and cycle the linkage, it should be put together as an assembly using mates?? I had made my linkage sketch and saved it as a part file, is this wrong? I have also noticed that when using the “link to file” or editing a block then saving it, the mates or relations dissappear, I’m really doing something really really wrong aren’t I???? See told you I was a student, not very good but I keep at it and WILL learn…….:-)

    • Ben 9:18 pm on November 25, 2009 Permalink

      You may be a student but the questions you have are very valid and most experienced people dont even know that blocks exist little alone link to file stuff. So as a student you are doing awesome to be tackling this stuff, it will benifit you big time in the future. Now that you said that each block has a file then all should change fine and be linked parametrically (there is a way to make a ‘assembly sketch’ with blocks that can then be made into parts and that is the method I would have used. Anyhow we will take a look at your files once they are up on the site.

      As far as mates go if you say delete a line and put in a new one and have used the first lines extrusion for a mate it will blow up. Basically it is no longer line one it is now line two. Also sometimes changing a dimension effectively changes the surface or solid enough that it is no longer the same surface and therefor the mate selections do not exist any more.

    • yakboy 11:14 pm on November 25, 2009 Permalink

      Ahhhh you make it sound so easy !!!!! the files you kindly attached a few comments ago, is all of it, the highest level is the one called “linkage1″. Thats my starting point or file should I say, all the other parts,sketches,assemblies are my long way round trying to get to where i want to be…. if you get my meaning?? just as a suggestion, once you have had a look, picked yourself up off the floor, could you possibly do an idiots type “how to do this” starting at the beginning and sending me off in the right direction………?? because i’m finding my way around and i just waste so much valuable time going around in circles…. my point being, i can be working on a part, trying to do a certain command or whatever, i may stumble across the key which does what i want, but i won’t understand why it did it? or how to do it again.. because at that point i’m totally confused and frustrated and probably just punching buttons to see what happens….. I really need to streamline the way i work and get this right…. many thanks for your patience.. nige

    • CBL 7:59 am on November 26, 2009 Permalink

      yakboy,

      I cannot find the files you said that Ben had attached “a few comments ago”. Can you use the Permalink link to reference the post?

    • Ben 8:45 am on November 26, 2009 Permalink

    • CBL 11:47 am on November 26, 2009 Permalink

      Ohh, that one. I thought that was the SolidJott add-in you had posted for yakboy.

    • CBL 11:50 am on November 26, 2009 Permalink

      That zip file does not contain all the files referenced in the assy.

    • yakboy 6:37 pm on November 26, 2009 Permalink

      Hi CBL, you’re dealing with a” fumbling around in the dark student” here don’t forget, I am realising I haven’t built this according to normal practice, so the files probably aren’t as you would expect !!! thats one reason for me being here is to get it right. I had problems with the “link to file” bit, so the assembly is a mess. As I mentioned to Ben, the “linkage1″ part file is where I was putting the blocks together, but this i think was the wrong way to go about it. So, I asked Ben if it would be possible for an “idiots guide” to how I should go about this process from the beginning….?? thanks you

    • yakboy 5:24 am on November 29, 2009 Permalink

      just a quick try to upload a file to see if I’ve got things working :-)

    • yakboy 6:43 am on December 2, 2009 Permalink

      just trying again…many appologies !! ok so why doesn’t the file I browsed and linked as an attachment onto this comment.. show up in this window????? very confused… or does a site mod have to do it?? Anyway, further to my quest for a solution I have actually managed to upload the whole file into the libray (off the dashboard) if anyone is willing to take some time and help me sort out this mess….. many thanks, this is such a brill site… please keep up the great work you do Ben et all…..

  • yakboy 10:34 pm on November 20, 2009 Permalink | Log in to leave a Comment
    Tags: assemblies, motion study,   

    Front suspension design 

    Hi Guys, I’m trying to design new front suspension for my trophy truck off road racer. I can do most of it on paper but thats not the point of learning solidworks…… is it?? I know what I want to acheive.. its just i don’t know how to utilise SW. I’ve attached the prelim layout sketch of the left half of the suspension, i wish to be able to grab hold of the input shaft and cycle it left and right to see what happens to the rest i e where the wheel bolts on….. but i’m pulling my hair out cos I don’t know how to do it??  your help and guidance would be fantastic…. thank you. 43 year old student of SW, spinal injury who goes racing off road :-)

    suspension-layout-sketch3

     
    • dave spencer 11:08 am on November 21, 2009 Permalink

      I can’t open your drawing because I am still on 2008. I have done similar work for a go-cart design. You need to build each PART and create an ASSEMBLY. When you mate it you will have to do it in a way that allows for the pivoting parts. IE; use CONCENTRIC and WIDTH mates in the bushings. Once it it all together you can move it around just by dragging.

    • CBL 4:20 pm on November 21, 2009 Permalink

      Work through the Help > SolidWorks Tutorials > Blocks tutorial.

      Also see http://help.solidworks.com/2010/English/solidworks/sldworks/sw_sketch/blocks_in_parts_and_assemblies.htm

    • yakboy 5:24 pm on November 21, 2009 Permalink

      Hi Dave, Thanks for your valued input. Maybe I’m barking up the wrong tree because my desire was to be able to draw and test to get all the geometry correct before going into building solid parts, I understand all the assembly and mating procedure and yes then cycling the parts… got that ok, I suppose I’m thinking there is a method before that, that I could utilise to cut down the process of changing part dimensions, rebuilds etc etc to acheive “perfect geometry”…. maybe the SW way isn’t what I was thinking. Ho Hum… back to the homework… thanks again..nige

    • yakboy 5:27 pm on November 21, 2009 Permalink

      Hi kelvin, Thanks for your assistance, I’m on SW Pro 2009, so is there an equivalent help of the link you sent in 2009, I’m having some eye co-ordination problems cos i can’t find it !!!!! student learner !!!!! more homework time i guess…. thanks again…nige

    • yakboy 7:42 pm on November 21, 2009 Permalink

      Hi Kelvin, Just gone through the blocks tutorial and I think you provided the answer… you are an absolute star!! straight to the top of the class!! Thanks again… i’m now going to try and complete the task… cheers nige

    • yakboy 5:48 am on November 22, 2009 Permalink

      Right Guys…. I’ve done it !!!!! absolutely brilliant !! chuffed to bits but all the thanks must go to you people on this site because without your assistance I would still be scratching my head and not getting anywhere but most of all wasting valuable design time.. So HUGE HUGE thanks. Once i’ve got a bit further I’ll post the model up so others may benefit…. cheers guys take it easy nige.

    • CBL 5:27 pm on November 22, 2009 Permalink

      Looking forward to seeing it.

  • MACH4 6:22 am on January 7, 2009 Permalink | Log in to leave a Comment
    Tags: Add new tag, assemblies   

    Assemblies, ok, there is probably sever … 

    ok, there is probably several ways, but what is the right way to stop a bolt etc. rotating in a hole?

    I have some shaped tubes that need to be locked in a particular rotational position…

     
    • MarkKaiser 6:47 am on January 7, 2009 Permalink

      It can be done with mating planes or faces of the bolt to the assembly or other parts, with coincident or parallel mates. But, the fewer mates you have, the faster your assembly will run. That being said, you may want to get the bolts into position, and use the fix or lock mates.

      I personally lock the rotation of my bolts with coincident or parallel mates and don’t have trouble with them, but I only do small assemblies, fewer than 100 parts usually. If you’re using the bolts to control rotation of other parts, you may have to do this.

    • JeffM 8:02 am on January 7, 2009 Permalink

      That’s the thing, there is no “right” way to do it. As I’m sure you’ve noticed, there tends to be a half dozen ways to get from A to B in SolidWorks. Granted, there are some “best practices”, but not necessarily right and wrong.

    • MACH4 12:25 pm on January 7, 2009 Permalink

      Thanks for the replies!

      What are your views on slightly deforming a part to make them easier to mate?
      Is it a cardinal sin?

      I’m thinking of placing a micro flat or curve on the tube flanges, I could then mate the tube-flat to to plate edge! I have done this already on offset mates to good effect and the flat only needs to be tiny, say 0.1mm long?

    • Chris Serran 12:29 pm on January 7, 2009 Permalink

      Can you not use planes instead of modifying the part?

    • MACH4 1:19 pm on January 7, 2009 Permalink

      The tubes curve out radially so that would mean a new plane for every tube

    • brian 1:36 pm on January 7, 2009 Permalink

      I would consider deforming parts to help mate VERY bad modeling practice. I never modify parts to help mating.

      I want my geometry to represent exactly what I want from the shop. Anything else will cause confusion and questions down the road.

    • MACH4 4:22 pm on January 7, 2009 Permalink

      I’ll give an example of where I thought it was used to good effect.

      You have a piston and a wrist pin, the Wrist pin has a domed end and its length is less that the piston diameter. You want to locate it centrally. The offset mate doesn’t work with two curved surfaces, so I created a very tiny flat on the domed end of the Wrist pin. This worked fine, and the flat area was microscopic.

      I’d like to hear if there is an alternative way…

    • Chris Serran 4:30 pm on January 7, 2009 Permalink

      I would either use a mid-plane extrude on the pin or in the revolve have it symmetrical about one of the main planes.
      In the assembly mate this plane to the piston plane.
      The piston would also have to be modeled so it is symmetrical about a default plane.

    • Anna Wood 10:36 pm on January 7, 2009 Permalink

      You can mate to sketch entities. I may add construction geometry to a sketch and mate to that.

      There are probably a hundred ways to get from here to there. Hard to state an absolute without being able to see the entire context of a particular design conundrum.

      The only absolute in SW is that there are no absolutes. :-)

  • solidsmack 12:16 pm on December 10, 2008 Permalink | Log in to leave a Comment
    Tags: assemblies, context menu   

    In SolidWorks 05 or 07 could you select faces of parts in an assembly then right click and ‘form new sub-assembly’? in 09 it only shows up when you select parts in the FeatureManager.

     
    • Rich Hall 2:46 pm on December 10, 2008 Permalink

      No support for this in SW 2006. you must click insert/component/new assy. This brings up the name dialog box and inserts the new assy at the origin. No other options are available.

    • admin 2:53 pm on December 10, 2008 Permalink

      Nope not there anymore. Bummer…..

    • gale 3:44 pm on December 10, 2008 Permalink

      Yes I remember for that function. It´s worse.

    • CBL 4:48 pm on December 10, 2008 Permalink

      If you can right-to-left window select the parts, the “Form New Sub-assembly Here” works.

      So, as a workaround (till it’s fixed … hahaha) continue to select the faces of the parts, then use the “Isolate” command, then window select.

    • RodUding 6:57 am on December 11, 2008 Permalink

      Ow! That is a big setback. I like building some of my sub-assemblys this way. Hopefully 2009 SP2 fixes this.

    • solidsmack 7:00 am on December 11, 2008 Permalink

      yeah, some people I work with, including me, find this in particularly… annoying.

    • Chris Serran 10:42 am on December 11, 2008 Permalink

      So I wasn’t going crazy when I tried to do this and couldn’t!

    • CBL 11:06 am on December 11, 2008 Permalink

      I don’t know you well enough yet to confirm or deny that. :O)

    • Chris Serran 11:15 am on December 11, 2008 Permalink

      I should clarify, I wasn’t going more crazy

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