Activity for PotterDraw
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Chris Korda posted a comment on discussion General Discussion
Hi Eli. I'm glad the software has proved to be so useful. Frankly I'm surprised as I almost never hear from users of PotterDraw and very few bugs have been reported. My old boss used to say that software no one is complaining about is dead software, but apparently in this case that's not so. I was not even aware that PotterDraw had been certified. Certified by whom? I do not know what is involved in certification nor do I have any role in it, as far as I know. I'm haven't worked on PotterDraw in...
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Elisabeth Jahnke posted a comment on discussion General Discussion
First of all, I would like to express my enthusiasm for the software! I have been using it in class for many years, and it allows our students a lot of creative freedom when working with three-dimensional shapes for 3D printing. Unfortunately, our school has decided to only install certified software and manage it centrally. I was told that PotterDraw no longer meets the school administration's software requirements. All my arguments (open source, no internet required, easy to use, extremely educational)...
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Only pattern on the outside
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Sorry but it is not possible. The proposed feature is against my vision for PotterDraw. If you must have this feature, I suggest you fork the project. You could also try creating a second model with similar shape but smooth walls, and then merging the two in a different 3D software. You might also investigate MeshLab, which can do many things. I am closing this issue. Best, C
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Martin Herse-Lyngsø created ticket #6
Only pattern on the outside
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Brian Zwart created ticket #5
Applying Scallop only to Bends?
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Hi Chris, Thank you for the feedback. If you have any insight on how to remove this small gap between the scallop edge and the edge of the wall so they line up flush I would appreciate it. I am close however there is a small gap of white space in both sample models. I am guessing this is the difference between the main body and the Scallop Depth Amplitude. I have tried a variety of ways through additional modulations to reduce or preferably eliminate this small gap however have not had much luck....
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Possible modulate scalloped wall to be flush with non-scalloped layers
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In the future please include the PotterDraw file so that I can better assist you; photos are helpful but not enough. However in this case it seems you solved your issue and don't need my assistance after all, so I'm closing the ticket. In general, what you are trying to do is certainly supported. PotterDraw supports a wide range of operations for both primary functions and modulators, and some combination of those operations will produce the intended result.
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And maybe I just overc complicated this and the answer was right in front of my eyes. This seems to be doing what I was looking for which is the intention of the subtract operation.
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Here is an example of another model illustrating the ribbed walls being flush with the flat portion of the bowl.
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Possible modulate scalloped wall to be flush with non-scalloped layers
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Hi Chris, I really did not think this was possible and had done extensive testing leveraging bends previously however did not extend it to ruffles. Using this method I was able to create the threaded helix to meet my requirements. Basically, I have started leveraging some of my existing Potterdraw designed models and enhancing them with fully addressable LED strips. The idea is to use a threaded helix to consistently wrap a strip around and plug this into different models. While this example is a...
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Hi Brian, After further consideration: you can make a threaded helix using a combination of Helix, Bend and Ruffle. The patch is enclosed.
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Hi Brian, After further consideration: you can make a threaded helix using a combination of Helix, Bend and Ruffle. The patch is enclosed.
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Hi Brian, After further consideration: you can make a threaded helix using a combination of Helix, Bend and Ruffle. The patch is enclosed.
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Modulating a Helix with a Helix?
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Modulating a Helix with a Helix?
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Hi Brian, You are asking to do two separate helical modulations at once, but the architecture of PotterDraw does not permit that. The closest you'll get is modulation of the Helix Amplitude, as shown in the attached image. Ideally, PotterDraw would allow any number of oscillators to be applied to any of the fundamental cylindrical parameters. This would necessitate a more open, connection-based architecture similar to Max or Jitter. However this is a complete redesign and will not happen soon, if...
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Modulating a Helix with a Helix?
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Hi Brian, I find nothing erroneous about the PDR files you posted. I do not see any visible artifact, nor is there anything unusual in the mesh. However I cannot currently test PotterDraw's exports, because I'm pressed for time and don't have the relevant software installed. I make the following recommendations: Install MeshLab if you haven't already Export your model from PotterDraw, import it into MeshLab, and examine it carefully. If the artifact is not present in MeshLab, the cause must lie outside...
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After some additional testing from what I can tell it might be coming from the spline scaling configuration within the Spline menu. Basically, when I want to scale up or down a model I select the entire spline on the right side of the screen, select Spline Scale, Scale Proportionally. In the photos you can seen the configuration I just applied. Cylinder on left is unscaled default PD cyliner model and Cylinder on right is same default pd cylinder scaled up 200% using the configurations within the...
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After some additional testing from what I can tell it might be coming from the spline scaling configuration within the Spline menu. Basically, when I want to scale up or down a model I select the entire spline on the right side of the screen, select Spline Scale, Scale Proportionally. In the photos you can seen the configuration I just applied.
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Images 10 - 11 are simply displaying where the rings appear in the StoneSwirl Model. I removed most the configurations in troubleshooting so it's mostly a cylinders with some spline adjustments at this point. StoneSwirl is displaying the rings within both slicers at layers 10-11. NoRings is the stock PD cylinder increased in size, no other modifications. This model is not displaying the rings within the slicer as seen in the NoRings image.
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Yeah, it's very odd. I have never seen these before on any models except PD models so I figured I would run it by you. I did some additional testing across two fo the most popular slicers both use different slicing engines, and both are displaying the rings. It seems to appear at layers 11,12 and could increase based upon wall thickness as previously mentioned, more rings with more walls.
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I have no idea where those lines are coming from. I do not see anything similar in my own models. It's more likely to be a slicer artifact than a PotterDraw issue. If you want me to investigate it, please send me your PDR file.
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Hello, I was curious if there is any way to eliminate these rings appearing at the bottom of all models I create from PotterDraw. Considering some models such as bowls can use top surface patterns for design these rings are not always desired. Also, the 3d printing slicers treat these as inner walls which are printed much faster than typical top surface creating a reduction in quality where these rings are visible. The following image uses 2 walls and no modulations. The visible rings seem to have...
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Hi Chris, Regarding the Fuzzy Skin concept, I had already begun testing some options using , bends and poles. I think there is opportunity especially with considering additional modulations. Also, I have followed up with the email. Thanks for everything.
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Hi Chris, I regarding the Fuzzy Skin concept I had already begun testing some options leveraging , bends and poles. I think there is opportunity especially with considering additional modulations. Also, I have followed up with the email. Thanks for everything.
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Hi Brian, Thanks for the detailed explanation. Please send me an email through my personal website contact form. Regarding fuzzy skin, PotterDraw doesn't have any such parameter. The closest thing I can think of is using Bend to make small raised bumps, as shown in the attached photo. Note that the resulting texture is nonrandom, though I expect you could randomize the texture somewhat by modulating the Bend phase, or via Ruffle. Also a fairly dense mesh is needed to resolve such small details; I...
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Hi Brian, Thanks for the detailed explanation. Please send me an email through my personal website contact form. Regarding fuzzy skin, PotterDraw doesn't have any such parameter. The closest thing I can think of is using Bend to make small raised bumps, as shown in the attached photo. However the resulting texture is nonrandom. Also a fairly dense mesh is needed to resolve such small details; I used 1000 rings x 1000 sides, which is typical for me but may upset your slicer. Best, Chris
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Hi Chris, this configuration makes sense, and I was so close to getting it done on my own. I appreciate that offer regarding access to your PDR files. Regarding my intended use. I love and appreciate art and after about a year long journey of 3d printing I am at a point where designing some creative models to my own liking is far more interesting than downloading the common public models. I have no business model to sell prints or models or does my professional career have any relationship to design,...
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Hi Brian, this vase results from combining Scallops with rounded Polygon. No parameter modulation is involved, as the attached screen shot shows. Instead of feeding you recipes for my designs one by one, it would be easier to give you access to the PDR files for my public designs. For example if you gave me your email address, I could share the files with you via DropBox. However before I would do that, I would need to know more about your situation. What precisely are you using PotterDraw for? What...
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One way I have been learning Potterdraw is identifying various patterns that are of interest to me and try to re-create in a sample and document this. In one of the images in your gallery there appears to be a 4 walled vase with these interesting elbows or extensions to the corners. I was thinking these might be a modulated scallop or maybe a modulation of the polygon side?
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This is very helpful and inspiring to better understand what's going on behind the scenes. You are operating at another level here and I am going to speculate the architecture of Potterdraw was possibly inspired by your knowledge of audio frequency/modulation along with mathematics? Using Potterdraw is unlike any other tool I have previously used to create vessels, vases, pots, etc. As I am getting more familiar with it, I am realizing it has many advatages over traditional cad type tools for quickly...
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Hi Brian, I'm glad it worked. Frequency modulation doesn’t work as well in PotterDraw as it should. That’s because the necessary phase compensation isn’t built-in, and must instead be approximated. In PotterDraw, when I apply a periodic function to something, I’m incrementing a theta over some range. In actuality my periodic functions are all normalized, so that their input ranges from 0 to 1. I called this normalized angle and it’s useful because we don’t have to consider π. So my theta ranges from...
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Hi Chris, this worked fantastic. I have applied this any many other modulations to various models lately with great results. Thank you so much for your help.
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Brian, The solution is to modulate the Bends parameter (the number of bends). This is a type of frequency modulation, and if done in isolation, it will give incorrect results due to phase errors. For correct results, you must also apply a compensating modulation to Bend Phase. The square wave controlling the Ripple Depth must similarly be frequency modulated, so that it matches the bends. This frequency modulation also requires compensation, though in this case the correction is applied to amplitude...
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Brian, The solution is to modulate the Bends parameter (the number of bends). This is a type of frequency modulation, and if done in isolation, it will give incorrect results due to phase errors. For correct results, you must also apply a compensating modulation to Bend Phase. The square wave controlling the Ripple Depth must similarly be frequency modulated, so that it matches the bends. This frequency modulation also requires compensation, though in this case the correction is applied to amplitude...
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Well, that is quite interesting, the one area Ruffle's I have spent the least amount of time in turns out where the configuration is. I have been testing out a variety of different patterns created from ruffles based upon your advice and have created some very interesting designs. Do you have any advice on how to change the height of a particular bend as seen in the gallery image? I believe I have done this before within Scallops and a modulation however can't seem to get this working within bends/ruffles....
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Brian, You want the Ruffle effect, which is a special case of Bend. Specifically you want alternating ruffles, achieved via bipolar square wave modulation of Ruffle Depth.
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Brian, You want the Ruffle effect, which is a special case of Bend. Specifically you want alternating ruffles, achieved via bipolar square wave modulation of Ruffle Depth.
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As I am getting more comfortable using this application it's really fascinating the opportunity for creative designs by leveraging the many configurations including primary and secondary modulations. I have spent a great deal of time consuming the documentation and am a bit challenged what configurations might be driving the circular and diamond patterns within these designs from your gallery. Of course, I tried to emulate these using Bends/Pits however I am going to speculate these are possibly...
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Just a quick update I was able to achieve the envelope effect within a simple modulation. Thank you for your guidance on this.
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Hi Chris, just quickly looked at the images in the Gallery and it's very clear I will be able to achieve this requirement. I will do as you suggested and focus on the modulation documentation and testing these configurations. Thank you for your support.
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Hi Brian. If I understand correctly, you want to limit the effect with an envelope, and you can accomplish that by modulating one or more parameters, and if necessary, also using second-order modulation (modulating the modulator's parameters). I suggest you read up on Potterdraw’s modulation capabilities, and also carefully examine the models in the web site's gallery page, many of which make use of parameter modulation.
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Hello, as I am better learning PotterDraw I have had a few scenarios where I would like to control where in the model the Scallop start's and possibly ends. In the following picture you can see the Scallop Waveform Triangle begins at the bottom and ends at the top. Another approach would be the same however have it taper and or build its power as it goes and possibly reduce it near the top. I have been using Ring Phase modulation configuration quite a bit and was thinking maybe somewhere within the...
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Hi Chris, I apoligize for the late reply as I am just getting back from a business trip. At this point I have done enough research to conclude these lines are not coming from PotterDraw and a biproduct of vase mode slicing rooted from the slicing engine used in many slicers based on an open-source slicer fork. While I don't use the Prusa slicer the brand I use leverages the Prusca slicing engine so the lines (artifacts) in slicing mode come along for the ride and for now I will have to accept them....
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Hi Chris, I apoligize for the late reply as I am just getting back from a business trip. At this point I have done enough research to conclude these lines are not coming from PotterDraw and a biproduct of vase mode slicing rooted from the slicing engine used in many slicers based on an open-source slicer fork. While I don't use the Prusa slicer the brand I use leverages the Prusca slicing engine so the lines (artifacts) in slicing mode come along for the ride and for now I will have to accept them....
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I looked again at your photos, and to my eye, it looks like it could be possibly related to normals. if I understand correctly, "vase mode" is converting the original mesh to a completely different geometry, consisting of a continuous thread of material. Obviously, that’s a very complex algorithm, and no doubt it is sensitive to the normals in the input data. That could explain why it’s having problems in areas of increased curvature, whereas it had no problems with the cylinder. You mentioned that...
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I looked again at your photos, and to my eye, it looks like it could be possibly related to normals. if I understand correctly, "vase mode" is converting the original mesh to a completely different geometry, consisting of a continuous thread of material. Obviously, that’s a very complex algorithm, and no doubt it is sensitive to the normals in the input data. That could explain why it’s having problems in areas of sharp curvature, whereas it had no problems with the cylinder. You mentioned that you...
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I looked again at your photos, and to my eye, it looks like it could be possibly related to normals. if I understand correctly, "vase mode" is converting the original mesh to a completely different geometry, consisting of a continuous thread of material. Obviously, that’s a very complex algorithm, and no doubt it is sensitive to the normals in the input data. That could explain why it’s having problems in areas of dramatic curvature, whereas it had no problems with the cylinder. You mentioned that...
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Hi Brian. I suspect the artifacts are being introduced by the vase mode of the 3-D slicer as you "don't see them when viewing in Blender, MeshMixer, Meshlabs." Any of these three products should allow you to zoom into the mesh far enough to see individual facets. You can compare what those viewers show you to the mesh view in Potterdraw. They should be identical. As I said, unlike many 3-D design applications, Potterdraw outputs a very simple cylyndrical mesh which is perfectly regular and predictable....
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Hi Chris, Thanks' for your feedback. I re-exported a few o the models os obj and its certainly a cleaner looking model, mesh, and better print. That said, while it slightly improved these odd visible veritical lines they were still there. On most the models I tested. I will do as you suggested and take a look at the MeshLab program. Also, I did some other basic testing where I exported the standard cylinder that defaults on a new file and sliced this in the slicer and no visible vertical lines. I...
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Have you tried using one of the other export formats instead? Best, Chris https://www.chriskorda.com/ On Nov 8, 2023, at 10:44 PM, Brian Zwart bzwart77@users.sourceforge.net wrote: Hello, I wanted to start out by saying this is a fantastic tool and I have found it very easy to learn. That said, I have started to build out a variety of interesting vases and planters that I am now printing on 3D printers leveraging a technique called vase mode. The issue that is occurring once you slice a STL that...
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Others have used PotterDraw to print models without experiencing the artifact you describe. My suggestions: 1) try using one of the other export formats and see if the problem still occurs, as it may be unique to STL. 2) Open the exported model in MeshLab and examine it carefully. If the artifact doesn't appear in MeshLab, the problem is likely somewhere other than PotterDraw. You can also try reducing the number of facets (via the Rings and Sides parameters) to see if the alleged error can be more...
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Others have used PotterDraw to print models without experiencing the artifact you describe. My suggestions: 1) try using one of the other export formats and see if the problem still occurs, as it may be unique to STL. 2) Open the exported model in MeshLab and examine it carefully. If the artifact doesn't appear in MeshLab, the problem is likely somewhere other than PotterDraw. You can also try reducing the number of facets (via the Rings and Sides parameters) to see if the error can be more precisely...
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Others have used PotterDraw to print models without experiencing the artifact you describe. My suggestions: 1) try using one of the other export formats and see if the problem still occurs, as it may be unique to STL. 2) Open the model in MeshLab and examine it carefully. If the artifact doesn't appear in MeshLab, the problem is likely somewhere other than PotterDraw. You can also try reducing the number of facets (via the Rings and Sides parameters) to see if the error can be more precisely characterized....
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Hello, I wanted to start out by saying this is a fantastic tool and I have found it very easy to learn. That said, I have started to build out a variety of interesting vases and planters that I am now printing on 3D printers leveraging a technique called vase mode. The issue that is occurring once you slice a STL that comes from potterdraw this random seam appears which is quite odd as you don't see it in the geometry. Considering vase mode in 3d printing is a continious layer you don't really have...
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Why? This is not in the spirit of open source software; others may benefit from reading our exchange. Best, Chris https://www.chriskorda.com/ On Jul 3, 2023, at 1:46 PM, Mathew Hall mathewhall-whc@users.sourceforge.net wrote: Hi, ok thankyou. could you change this job to "private" as well please? [tickets:#2] Using PotterDraw Status: closed Milestone: 1.0 Created: Mon Jul 03, 2023 11:22 AM UTC by Mathew Hall Last Updated: Mon Jul 03, 2023 11:44 AM UTC Owner: nobody Afternoon, Our tutors are interested...
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Mathew Hall posted a comment on ticket #2
Hi, ok thankyou. could you change this job to "private" as well please?
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Using PotterDraw
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Thank you for your interest. PotterDraw is licensed under GPL version 3. I suggest you familiarize yourself with that license. You could start with Wikipedia. In general, its restrictions do not concern mere usage of the product; they apply to modifying the software and distributing the modified version, which if I understand correctly, you don't intend to do.
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Using PotterDraw
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Nope, sorry. Sent from my iPhone On Jun 26, 2021, at 9:17 AM, Serge Ch pilum@users.sourceforge.net wrote: Hi ! I suppose this application is very useful, but couldn't You make a version for XP 32 ? Welcome Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/potterdraw/discussion/general/ To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
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Serge Ch posted a comment on discussion General Discussion
Hi ! I suppose this application is very useful, but couldn't You make a version for XP 32 ?
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1.0.08.000
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PotterDraw updated /readme.txt
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PotterDraw nominally operates in millimeters, but in practice since the models can be scaled to any size, it can be in whatever unit is convenient. I suggest you download MeshLab, which is an excellent free and open source software that provides many useful capabilities for post-processing the models that PotterDraw produces. In particular it has powerful tools for simplifying the mesh, which is crucial as the PotterDraw models will often have more triangles than a typical 3D printing software will...
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Hi Mark, sorry for the late reply. I didn't have any specific program in mind. The idea was more that programmers might use this feature to input a spline from a custom software.
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PotterDraw nominally operates in millimeters, but in practice since the models can be scaled to any size, it can be in whatever unit is convenient. I suggest you download MeshLab, which is an excellent free and open source that provides many useful capabilities for post-processing the models that PotterDraw produces. In particular it has powerful tools for simplifying the mesh, which is crucial as the PotterDraw models will often have more triangles than a typical 3D printing software will handle...
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Daniel: I removed your personal info from your query.
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Thanks Melody. What printer do you use? Very truly yours, Daniel M. Kurtzman, Esq. LLC
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Daniel M. Kurtzman posted a comment on discussion General Discussion
I just noticed that my last response picked up all of my professional email stuff. Not sure how it happened, but it was unintentional and I apologize. Dan
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Thanks Melody. What printer do you use? Very truly yours, Daniel M. Kurtzman, Esq. LLC Daniel M Kurtzman Admitted to Practice in New Jersey and Pennsylvania 115 Saint James Avenue Merchantville, New Jersey 08109 daniel.m.kurtzman@gmail.com 856-665-8100 (telephone) 856-330-8999 (fax) www.kurtzman-law.com Offices also at 333 E. Lancaster Avenue, Wynnewood, Pennsylvania 19096 This email message (and attachments, if any) contain information that is confidential and/or legally privileged. The information...
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Melody Shah posted a comment on discussion General Discussion
Yes, it's a bit clunky to me and I've a lot of 3D modeling for other applications. With my clay 3D printer, the height of each coil is not the same as the width of the nozzle because each coil becomes flattened as it is built upon. I realized thought that I can scale it in Cura (the slicing program I'm using). Although I'm having a really hard time figuring out all the settings to get my model sliced so that my 3D printer prints it correctly. Let me know if you figure out a good slicing program and...
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Hi Melody. I just downloaded this program yesterday and am having a hard time figuring out how to use it; however, I may have a partial answer to your question. I think that the height of the object would be the number of rings multiplied by the thickness of the clay that your printer's nozzle will deposit. So, if you've got 200 rings and you're using a .3mm nozzle, the object has a height of 60mm (200 x .3) or 2.4 inches. I think you control this from properties, not from the spline display. I'd...
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I haven't been able to find where in the software I can view or change the units. Without this, I can't tell how big my model is.
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Mark Watson posted a comment on discussion General Discussion
In the documentation it says that you can import a spline from a plain text file containing a list of 2D points. It also mentions using an external program to generate the spline. What programs can do this? Cheers Mark
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1.0.07.001
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