Questions related to SLA
Why is it that when I search for literature on 3D printing bone scaffolds using materials like PLA, I seem to find more studies using FDM rather than SLA?
And I have another related question:
I came across a literature where it mentioned, 'SLA has high precision and can produce small-volume objects; however, only a single material can be used and thus post-processing and support structures are required, and toxicity cannot be overcome.' I'm having trouble understanding what is meant by 'toxicity' in this context.
Sorry I'm just starting to read literature in this field, and I have so many questions.
I'm wondering if there are tests to measure the learners' explicit productive knowledge in the field of SLA, focusing on the grammatical aspect. I'm aware of some tests to measure learners' receptive explicit/implicit knowledge (e.g., timed/untimed GJT) and productive explicit knowledge (e.g., Cloze test), but I couldn't find ones for explicit productive knowledge.
Thank you in advance !
Water Soluble PVA Filament which is generally used for printing support layers in fused filament fabrication (FFF) 3D printers. Is there a curable resin that dissolves in water (not water-washable resin) just like PVA filament in Masked SLA-type printers?
I use a DWS System's DS3000, a photosensitive monomer to disperse the nanoparticles in it and use the solution for SLA printing. But, because of its high viscosity, I cannot increase the particle concentration, which is my goal.
I would like to 3D print models of protein molecules, and am thinking of buying a 3d printer. My question is – which technology would be better for such prints: FDM or SLA? To be more precise, I’m deciding between Creality Ender 3 v2 neo and Anycubic photon m3
From what I have read, SLA is generally better for complex models. However, protein molecules are ribbons with complex geometries, and a lot of overhangs. Therefore, they need a lot of supports. While generally removing SLA supports is easier (am I right?), resin is much more brittle, therefore it would be a real challenge to remove all supports without breaking the model, especially since SLA prints are usually smaller in size. So I feel inclined to buy an FDM printer.
Would be grateful for some advice
I want to make a micro-fluid chip using PDMS. I print the casing for this purpose using SLA material. I want to cure the chip faster. I have a microwave oven (700 Watt). My question is that can I use microwave for curing PDMS? And what will be the effect on SLA part?
I want to prepare some microfluidic chips based on PDMS via PDMS casting. For that, I am preparing 3D-printed molds with the DLP (digital light printing) method. The molds have features that are below 200 um (150 um wide gaps) and some standard parameters, such as 1.5 s irradiation and around 24 mW/cm2 with Lumen X+ bioprinter, cannot produce those features, even though the resolution of the printer is 50 um/px. Any recommendations on printing parameters? Also, I am using standard photosensitive resin for DLP/SLA (3D-basics Basic resin).
Please suggest the International or Indian Journals where full length research paper titled Scope of Error Analysis in English written texts of ESL Students- A Case Study (Keywords- ELT/SLA/Error Analysis/ Writing Skills/Young ESL Learners) can be published?
Thanks in advance.
there seems to be a lack of resources, even though SLA additive manufacturing is widely used. Would anyone be so kind as to point me towards a source determining the Poisson's ratio of standard photopolymers in cured state? I'd be especially interested in Formlabs Clear resin and Formlabs Tough 2000. Their documentation does not provide a number, unfortunately, and literature results for other resins are surprisingly scarce as well.
Thank you all in advance.
Hello, I want to know how can SLA, DLP or other vat photopolymerization methods achieve multi-material printing capability? Can they print multiple materials in different regions at the same time?
I am working on a research project on emotions in SLA, using the control-value theory as a research framework. When i am measuring emotions like anxiety and enjoyment, am i limited to the scales developed specifically for that theory? Or i can use domain-specific scales? like the FLCAS? I would appreciate your input on this!
I am doing Stereolithography (SLA) 3D printing using ceramic slurry. I found some slurries could be UV cured, some slurries could not react to UV light. I found that refractive index could impact the curability of the slurry. Is there any equipment that test the refractive index of the slurry?
Hello dear fellow researchers. I am conducting a quantitative study (exploring causality between the dependent and independent variables) in which I have provided a theoretical framework informed by SLA research. Should a hypothsis (based on theory to account for any causality claims) be stated or would it be better to dispense with the theoretical framework at all if no hypothesis is stated? Advise please.
Due to the integration of new and legacy technologies in 5G and applying Artificial Intelligence (AI) and Machine Learning (ML) which are bring more benefits of innovation and supplier diversity in an open market, are expected to experience new challenges to deploy Open RAN; clearly, the low maturity of the technology and also new features like more Open interfaces, multi-vendor integration, multiple slices with different SLA and virtualization and softwarization presents security and trust issues that need to be address, Which secrity aspect do you think is more important?
What do people think is the most significant part of this research project ? Is it mainly about figuring out a way to print hollow structures with SLA and designed the printing process of a lung ?
There are a lot of simulation tools for simulate cloud computing environment, here I need simulation tools for simulate SLA monitoring approch for cloud computing system?
I am planning to measure teacher stress in my research. One valid and reliable instrument I believe I have found is Teacher Stress Inventory by Michael J. Fimian (1984).
I was wondering if this measure/instrument is in the public domain and can be used just by citing the author and publication or should it be purchased?
Moreover, where can I have access to this questionnaire?
I'm following the instructions here to create a 3D printable bioink but after i freeze dry my samples, they only partially dissolve in water. I tried heating with a stir bar too and it would still not completely dissolve. In the paper, they describe their Sil-MA composite as a powder after freeze drying but my sample is more similar to a strong Styrofoam. I cannot grind it up with a mortar and pestle and cutting it is very difficult. I've had relative success dissolving it in formic acid but but i think the acidic environment hinders crosslinking so I'd perfer to use water as the solvent instead. Any ideas?
Hi, I am working with PEGDA (polyethylene glycol diacrylate) for SLA 3D printing. Parts made from 100% PEGDA are transparent after production, while adding increasing amounts of propylene glycol to the pegda solution makes the final part appearing milky-white. Why does that happen? What causes this phenomenon? Please note that the liquid mixture of PEGDA/propylene glycol is also transparent before 3D printing.
In general, there are several automated eddy detection algorithms. However, each identification method poses a multinuclear eddy identification problem, e.g., multiple SLA extremes. This problem can occur when multiple eddies are physically close together. We tried to solve this problem with the following paper "A new mononuclear eddy identification method with simple splitting strategies" and the paper "Technical Note: Watershed strategy for oceanic mesoscale eddy splitting" in Ocean Science, which can be downloaded from http://www.ocean-sci-discuss.net/11/1719/2014/osd-11-1719-2014.html. We hope these strategies be helpful for the investigations in ocean dynamics.
I want to start my research work on nano reinforced polymer composites, for that i am choosing desktop SLA additive manufacturing process for preparing the component. My doubt is that, is it possible to cross link the photo polymer which is reinforced with nano particles. If it is possible, then how extent will it give better performance? If not possible, then what is the alternative method to reinforce photo polymer to get better performance? Please respond, your suggestions will helps me a lot to go in right direction.
I am researching guar - a drought-tolerant legume, which revealed a strong correlation of 0.6 between plant N-content and SLA. I am looking for a possible explanation for this relationship? Thank you!
I would like to explore all performance metrics to evaluate an auto-scaling system.
The desired auto-scaling system scales out/in a web application, which is hosted in the cloud environment.
I know some metrics such as (1) Cost, (2) Response time, (3) Delay time, (4) Resource utilization, (5) Total Provisioned VMs, (6) Oscillation mitigation (or scaling overload), (7) Time to Adaptation, (8) VM minute, (9) Contradictory scaling decisions, (10) Contradictory scaling actions, (11)The rate of SLA Violation, (12) Stability, . . .
anymore? If yes, you can be a part of our team.
There are many studies on optimizing resource management for cloud computing. Such optimizations are as resource allocation, provisioning, consolidation, scheduling, migration, etc.
However, What metrics are being used by researchers to evaluate their solutions, especially for resource provisioning issue? We have collected many of them and would be grateful if you would add yours.
- CPU Utilization
- Response Time
- Delay Time
- SLA Violation
- Provisioned VM
- Allocated VM
I'm working on optimizing a 3D printing formula for a SLA printer resin. While using the different published methods like digital caliber, digital microscopes, etc, I figured out that the accuray is not suffecient at all. I even wonder whether a lot of those published results represnts the real layer thickness layers as some of them make excessive washing after the UV esposure or wait till the print is dry (till the next day)! Also is there a way to quantifiy the percentage of the fully cured part of the cured print from the partially cured part ?
Thanks in advance
I want to know which is best SLA 3D printing photo polymer resin for preparing nano reinforced polymer composite and is it possible to prepare our own photo polymer resin or not. Please give your valuable suggestions. Thank you.
I have references for SLA and material jetting processes but nothing for SLS or jet-fusion. Any assistance would be appreciated.
I want to make 50um hole on a SLA 3D printed part. I did 200um hole using 0.2mm drill bit, but now I need to make 50um hole. My question is what is the easy way to do this, any help or suggestion will be appreciated.
Thanks in advance.
Dear RG community,
I would like to sample (cut-off) maize leaves in the field and transport them to the lab for SLA (specific leaf area) measurements. After a brief literature review, I could not find an exact explanation on how the sampling is done without harming the leaves. As the leaves can be quite large (~60-70 cm), how would I best store 50-100 leaves in bags? Already cutting them in sections in the field might be an option and then store them in sealed bags. I am wondering if anyone ever only took a section of the leaf for SLA measurements and tested whether this causes a major error. For corn at least. Just using width and length and multiply it by a correction factor is not sufficient to get a good leaf area estimate I guess.
What would be the most practical way to do this without using huge bags and ice containers?
I like the SLA but it appears to require two subordinates' input. Where can I find a valid self-assessment instrument?
Are there any relevant features that make some prepositional combinations relatively easier to learn than others?
Thank you in advance for your participation!
I have produced a mold for microfluidic device, using 3D printer (SLA) with epoxy material. I'd like to build the microfluidic device using PDMS. Based on my reading, the mold need to be treated with plasma for surface activation as it has been reported that PDMS will not cure in epoxy-based mold. My questions are :
1. Does the plasma cleaner for surface activation (e.g Harrck, PDC-32G) has similar concept/function with plasma cleaner for electron microscope (Ibss Group, 10x Asher)?
2. Is there any way to do plasma treatment for surface activation, manually?
I have encountered several ways to detect ocean eddies: Okubo-Weiss, Vector Geometry, winding angle, from SST fronts, etc. However I don't know which one to use. Does a method differ in detecting eddies with latitude or region? I also find that validation of some methods require experts looking at the SLA and geostrophic velocity maps but it has also high uncertainties.
I need the following traits: SLA, LDMC, leaf C, and leaf N. Strong preference for traits from China. Species average is fine-- individual measurements would be even better.
Our lab has been using the Formlabs Form 2 SLA printer.
Previously, we printed structures with clear resin, but now with the grey pro resin, there exists some abnormal area as attachments show. I printed this structures a few times and the same issues happen.
I can think of a few points:
- Grey pro has lower resolution (0.05 mm) than the clear one (0.01 mm)
- Design file problem. (error reported at first, but I used Netfabb to fix it up.)
The relationship between SLA and Optimality theory (specifically inputs generation and constraints ranking).
I want to bond PDMS on 3d-printed structure (from SLA 3d printer, Form 2). In fact, I don't know exact composition of resin of 3d printer, but I guess its main component is acrylate (maybe PEGDA).
How can I bond them? I've googled, and found that PDMS and PEGDA can be bonded with 3-(trimethoxysilyl) propyl methacrylate. If correct, with which process should I bond them with this chemical?
I am interested in CA analysis of SLA interaction, both in classrooms and outside. It seems very hard to find the source recording for a lot of published work in this field.
My research group is currently working on lower budget means of measuring specific leaf area and relative water content in the Arabidopsis thaliana plant. We are working with the Easy Leaf Area application by Heaslon for the SLA, and I was wondering if anyone had any experience using this app with respect to its accuracy and any problems that may have been encountered. Thank you.
I have made SLA based Information Security Metrics for Cloud Computing and desired to simulate on any simulator..
Would you please suggest me appropriate simulator and the way to simulate it
We are seeding human tissue with pig cells and I am looking for a good antibody to detect the pig cells, with absolutely no cross-reactivity with human cells.
Does anyone have experience of any reliable antibodies for IHC on paraffin embedded tissue e.g pig mitochondria, SLA?
People learn language in forma classroom settings, and in natural setting interactions with the target speech community members. Most of the research focus formale SLA , my question is about informal SLA and role of emotions and cognition.
I was trying to find the way, whether we can make shape memory polymers by using 3-D printing techniques or not? I found four types like SLA, DLP, Multi jet/ Poly jet and CLIP to make liquid/ resin type polymers. Now can any one please suggest me, how can I get the best one or what should be the parameters to select best technique?
I am looking for a medical grade plastic materials (transparent) which can be 3D printed for prototyping purposes?
- If it's in beads/filament form it can be printed by FDM
- If it's in resin form, it got to be photocurable for printing by SLA
I am doing research on the factors influencing SLA and need to classify the so-called 'external factors'. Has anybody come across a similar classification? Can you recommend any articles / books on the topic? Thanks.
I am working on Resource allocation problem in IaaS cloud. The SLA parameters such as VM start up time, there are no models available to calculate in simulation. Any ideas or suggestion?? thanks in advance !!!!
The SLA modified model for resilience dwell on the sub properties of Scale, robustness,scale, flexibility,self organization as a determinant for Adaptive capacity (resilience). I want to take them as my IVs for the regression and my DV is adaptive capacity. thank you
We understand that a cloud computing platform should be a online system any time. And, the cloud platform has the completeness good enough to keep SLA for a client.
With a optmized Cost/performance Quality Assurance Metric method, it is ncessary to develop an assessment framwork to guarantee the completeness of Intelligent Deisgn System, such as a cloud computing platform.
A lot of theories and studies seem to deal with how input is processed for meaning and form, but I am interested in looking at how the learner then takes this processed input and constructs some sort of representation of the L2 for later use. Does anyone know which, or any, SLA theories that specifically deal with this process?
I'm currently designing and developing a SLA 3D printer. As the mechanism are cured the resin layer by layer, I would like to know what are the effect of the feed rate to the product in term of strength and appearance.
I have measured several functional traits mainly leaf traits (SLA, LDMC, LT …), root length and weight above-ground standing biomass, Branching architecture. I know Paula et al(2009) review article which introduced possible traits related to fire considering resprouting and regeneration traits. Could leaf traits and allocations also be considered as representative traits for interpretation of fire effects?
It would be my pleasure to have your advice
Since digital services are distributing to different applications widely, there would be a need to define SLAs for such services based on application requirements. but SLAs are just defined for limited numbers of services such as Cloud platforms services or mobile networks. Therefore, is there any method to define them precisely for any digital service?
I'm currently doing research concerning vocabulary instruction using CALL applications. I would like to investigate whether there might be any differences in the effectiveness of various vocabulary learning strategies when using CALL applications and paper and pencil methods to learn vocabulary.
An ecological perspective involves exploring language teaching and learning within the totality of the lives of the various participants involved, and not as one sub-part of their lives which can be examined in isolation. This means that to understand what actually takes place in our classrooms, we have to look at these classrooms as entities in their own right and explore the meaning they have for those who are present within them in their own terms, and not with reference to a situation—external and supposedly universal set of assumptions.
In Australia, sometimes it may feel like language and culture studies research is unimportant, and that only the "hard sciences" get all the attention (and the funding). This could result in researchers feeling undervalued, and beginning to lose their confidence, so that their research output actually decreases, instigating a vicious circle. I am just wondering whether this is just my impression or whether other people think this might be happening.
In both cases it is possible and simple to describe the sounds by describing the segments out of which they consist. On the other hand there is a great diversity of national notations of these sounds, e. g. what is transcribed in German phonetic dictionaries as a cluster of vowels [ae] or [aɛ] occurs in phonetic dictionaries or grammar books of other languages as a cluster of vowel and consonant: [aj] - without naming it a diphthong. This is confusing for students and teachers. Additionally the difficulties to define and teach the concepts 'diphthong' and 'affricate' take a lot of time and work and cause a lot of misunderstandings.
The main issue today is end to end SLA management in different vertical. As software tends toward the SOA approach, more complexity arises in quantifying the QoS, KPI and SLS specification. Is there any research paper on discussing various issues related to these topics?