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SteveCox3D

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Everything posted by SteveCox3D

  1. Yes, all sorted for me too. Big 👍 👍👍 for the Ultimaker Essentials support team!!
  2. I'd already raised a ticket, and they thought they'd resolved it today, but I still get the "No Access........" screen, so it's back with them.
  3. I've got the same issue - so @SandervG I would also be interested in the resolution................
  4. @Garrett_Iverson I'm making some enquiries regarding whether there's a planned improvement in the pipeline to reduce the noise, and I'll add an update when I know more. In the meantime some people have put a soft pad (something like a felt material) on the base of the printer to cushion the plate when it reaches the bottom stop. So the suggestion at this stage is to use a "hardware" solution rather than try to deal with it in software or the firmware.
  5. This is pretty standard behaviour for the S5. The S5 buildplate is quite heavy because it's a reinforced casting (and is much heavier than on an Ultimaker 2+ or Ultimaker 3). Once the buildplate gets near the bottom stop at the end of the print the buildplate stops momentarily and then power to the stepper motor is cut. Because of the weight of the buildplate there's enough momentum, for it to freefall the last few mm onto the bottom stop. That's what makes the loud noise. It's a little bit alarming, but not detrimental to the printer. You may not have noticed it at fir
  6. Agree on the use of Fusion 360 for modelling threads that have to be 3D printed, I use that all the time. Some of the problem with threads comes from the fact that the outside thread will tend to be 3D printed slightly larger than the nominal size, and the inside thread will be slightly smaller than the nominal. The result is in an interference fit rather than the running clearance required for a thread. I usually engage the two threads together and then work them against each other and gradually they bed-in and work as they should. It can be useful to introduce a lubricant to make
  7. I think getting to talk to the Materials team would be good as I think this is the most fascinating area of development for me. Understanding what testing programme they go through for new materials in more detail would be great for the community to understand.
  8. Glad it worked out! This forum is all about helping each other, so it's great to get your feedback that this solved your problem.
  9. The above contributions to this thread by @geert_2 @laverda and @JohnInOttawa all make great points, especially in relation to the load cases that might be seen by this part either in normal, or even abnormal, use. The part in this case study was produced from a Generative Design set-up using three different load cases acting on the pivot of the part. None of those three load cases were applying a lateral load to the pivot because it was considered that the connecting part is constrained in such a way that it cannot transmit any lateral load, so the design synthesis has not had to
  10. @cloakfiend It's interesting to see in this case that the optimised part, which had much thinner sections, had a much better burn out of the PLA than the original baseline part. So it seems like the shapes can be fairly complex, with thin walls and sections, and still create good quality cast parts
  11. Many thanks @JohnInOttawa for contributing to this discussion and the points you make are absolutely valid to this new way of designing. Firstly Generative Design creates surfaces that we would not ordinarily design ourselves, but when those surfaces are derived from the results of stress analysis it's fascinating to recognise the echoes of the way nature designs. Maybe nature is the greatest designer of all, because it has evolved to make the most effective use of the materials around it. What you've also outlined is something I'm working on at the moment in terms of
  12. How can the very latest, cutting-edge design software combine with a 5,000 year old manufacturing technique to deliver outstanding weight reduction opportunities? Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts upon the energy usage of the product during it’s service life. Lighter products mean less fuel to move them around, which can mak
  13. In the past I too have got to a position where prints no longer stick properly to what seems like perfectly clean glass. It's as if there's something invisible to the naked eye that's causing a lack of adhesion. I found that using one of those scouring creams like you use for cleaning limescale off in the bathroom (Cif, it's called in the UK) seemed to rejuvenate the adhesion. These creams have a mild abrasion effect and whilst they're not aggressive enough to affect the glass in terms of creating any scratching, using this seems to "rejuvenate" the glass plate so that prints then stic
  14. Thanks for the comments @geert_2 The interesting thing about the pliers is that the service life could be long because there are no moving parts and the flexible part is working well within it's elastic limit so it's response should remain constant. I'm used to testing things to determine their service life and this feels like it would cope with a very high number of operating cycles. The clamp force isn't enough to do a mechanical job like tightening a nut, but it does have a soft pinch force like you can get with your fingers. Someone who I showed it to was very int
  15. In my previous post on DfAM (Design for Additive Manufacture) I concentrated on how to deal with some of the design principles needed to ensure the manufacturability of a part using Additive Manufacturing (AM), or 3D Printing (3DP). In this post I’m going to concentrate on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP has to offer. There are a number of different advantages available and we’ll look at each one in turn………… “Complexity Comes For Free…..” This is a statement that’s often made about AM/3DP. It’s not always co
  16. @Nicolinux I'll take a look at these and see what would be the best action to take to improve the strength
  17. @JCD Interesting to see your theory about warping. In this case it's the stresses that are locked into the part caused by the thermal effect of heating up a material and then quite rapidly cooling it that induce the warping. Warping is a very significant issue in metal 3D printing where the energies are much higher than in FDM. It's why you see metal prints with what look like support structures, but are in fact structures to anchor the print to the buildplate to prevent that warping from occurring. Even when those structures do their job and stop warping there can be huge i
  18. Hi @Nicolinux Fusion 360 could do the analysis, but the infill patterns would need to be modelled in Fusion which would take a little time to do, especially for the more complex 3D infill patterns. The stress analysis would also be a little more complex because of the greater number of surfaces that need to be meshed to support the analysis. If Fusion 360 wasn't able to handle that locally then it could be handed off to the cloud. Do you have a particular part in mind that I could take a look at because it's a very interesting question.
  19. I don't want anything, so disable this feature. But, I agree with other comments here that a suffix is better than a prefix as a prefix makes it harder to spot the file name that you're looking for on the small screen on the UM2+ and UM3
  20. Regarding the @SandervG and @geert_2 discussion on DfAM's role in aesthetic / high surface quality output, here's my take on it. For me, whilst DfAM does have some bearing on aesthetics and surface appearance, my own view is that it's much more related to the file preparation, printer settings and post-processing area of 3DP. It can't be completely disassociated from the design process because creating good consistent smooth surfaces at that stage is definitely needed for good aesthetics. The best model I have looks great in whatever material you print it in, and that's because th
  21. Thanks @gr5 ! The tangential nature of a fillet generates the long step on the first layer that isn't that effective because the next layer steps a long way back from it so you don't really get the benefit. Using a chamfer adds the structure more uniformly. I agree that probably a kind of parabolic shape could be even more optimum, but CAD software is set up to put in fillets and chamfers in a single operation on corners whereas using a non-uniform shape is a much more involved workflow.
  22. @geert_2 Thanks for contributing to the discussion. Indeed, DfAM is influenced by many factors, and what your intended use for the 3D printed part is. So this is quite a large subject and my original post is there to encourage debate and other people's perspectives and techniques for DfAM. Many of the things that you mention I also do in my 3D printing work. One technique I use often is to split a print and make it in several parts which can be glued together rather than have to use support material. I do tend to be a little obsessed by quality and on a single extruder machine I
  23. @Brulti That's a really good point and something I think we will see more of in the future. For instance in Fusion 360 there is a dedicated CAM environment where you can carry out your machining set-up, and in the longer term I expect to see a similar environment for 3D printing being added, maybe based upon Autodesk's Netfabb software. It's important, as you say, to catch the manufacturing problems at the design stage when it's easiest to do something about them.
  24. I'm Steve Cox, a member of the Utimaker Community. I'm an experienced engineer having spent many years in the automotive industry but I'm now focussed on the world of 3D technologies, specifically 3D product design and 3DPprinting. I'm an Autodesk Certified Instructor for Fusion 360, so many of the images in this post are taken from that design software but this post is not specific to that software but is about designing for 3D Printing and Additive Manufacturing. This is a first of a series of blog posts in this area that will be focussing on how engineering is interacting with the latest
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