Plate N Sheet Professional V4 149 !EXCLUSIVE!
Alke Stilwell
Correct, the surface creation to create faired hull surfaces is difficult however we have a workflow that works for us and gives good results just utilizing the unroll command. the majority of the parts in a boat end up being flat plate with no shape or just sharp corners that are very easy to unroll into sheet metal flat patterns. I am just looking for help in automating the repetitive nature of going from model in 3d to flat sheet metal patterns.
You came to the right place. Rhino / Grasshopper is accurate and fairly easy to learn,with a great support community. Its just a matter of asking pointed questions as you develop your particular workflow. Best done with an image, description and associated geometry.
Can you elaborate on what the reason for a second itteration would be?
Say you have modeled the boat, and flattened all parts.
What is the incentive to edit the surfaces and unroll again?
Is that after a first build and you need to update the model or is it that you want to update the flat parts after reviewing the 3D model?
To answer your first question about iteration, there are only two reasons, either this is the 2nd build and the changes are lessons learned, or we are taking a previously built boat and trying to salvage some engineering time to make a similar boat. We are a small company with only two engineers and we only have had 2 contracts in the history of the company that were multiple vessel orders. all the rest were custom one offs, or variants of those custom one offs.
Being a solidworks user i know the benefits of parametric modeling and am trying to integrate some of that into my workflow with rhino where it makes sense to do so, learning grasshopper and scripting, but by nature custom boats are like a skyscraper. you are only going to build one.
I have been having lots of adhesion issues with PLA parts not sticking properly to the textured sheet. I have tried cleaning with IPA and dish soap (not tried scotch brite, as I worry about too much damage), and I have tried modifying the live adjust Z and have a good height for the nozzle, and I've tried upping the bed temperatures. Things just aren't sticking.
I have heard this is a known problem with the textured sheets (especially now, prusa no longer even say that they work for PLA on the site) but I cannot get myself a smooth sheet (prohibitive shipping costs) and I don't really want to buy anything new, if possible (I have been recommended printbite, but I would rather not pay for something I'm unsure about). Is there a way I can make PLA stick better without having to buy anything new? Any modifications to the sheet or print profile tricks?
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
\I'd been using my smooth sheet for about a year with no problems then it got to the point PLA would not stick and then PETG stopped. I would clean it with IPA and washing it with dawn helped but did not last long. Unrelated I had ordered the textured sheet and when it came in I could not get anything to work. Nothing stuck. Dawn would help for maybe one print but event that was iffy?
Then I had a light bulb moment and tried something. I had been using IPA towelettes, opening one, wiping everything down and then printing. I got to thinking that the amount of alcohol in the wipe might not be enough to remove the residue and was actually just smearing it around, making things worse. So I started powering the alcohol in the middle and letting it run outward. Flooding it in effect. Not enough to run off the sides but once it started heading to a side I would use a paper towel and pull it around the outer sections. Then effectively spreading it around like you might a poly or something.
Well my next print worked great. And the one after that without recleaning, and another. I only clean about every 10 prints or so. The only other change I made is I am very conscious about not removing the print from the textured one until the sheet has cooled down below 40C. This restored my life to the smooth sheet and the textured sheet.
A few weeks I did print pla on pei sheet, after cleaning with dish soap, and did alcohol on bed, and used a glue stick to go over the bed/alcohol(several times over the bed), this leaves a very light glue behind, it seems to work.
I'm surprised nobody mentioned wiping the print bed with acetone on a clean paper towel, has that fallen out of favor? That's still my go-to when a scrubbing with Dawn and hot water doesn't correct the issue.
I was able to get Prusament PLA to stick pretty well by doing Live Adjust Z and setting it to squish the first layer more. Still not as good as the smooth sheet, but Prusa does say at -steel-sheet_196534 that their textured sheet isn't intended for PLA. The textured sheet is best for PETG and TPU, and more materials. I got my textured sheet because my TPU filament took off a chunk of the PEI on my Smooth Steel Sheet.
I've found that the sweet spot for calibrating the Z for the textured build plate surface is just at the point where the 'brush strokes' disappear into the texture pattern on the 'flag' of the internal calibration routine.
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Sheet metal fabrication is a versatile process that is used across many industries, including fabrication, construction, automotive, operations and maintenance, aviation, field service, and beyond. Fabricating sheet metal involves shaping and forming metal sheets into various shapes and sizes, and can be used for a number of different purposes.
Interestingly, sheet metal fabrication has been used for centuries, and a lot has changed and evolved over time. What was historically a low-tech process has now become a modern, high-tech technique that involves cutting edge equipment and technologies. The widespread use of sheet metal fabrication is attributed to its numerous advantages, which we'll explore in detail, alongside common materials employed, popular use cases, and a step-by-step process overview in this article.
Sheet metal fabrication offers a large amount of versatility, allowing manufacturers to create intricate designs and complex shapes with ease. This versatility extends to the range of materials that can be used, making it suitable for a laundry list of applications.
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Sheet metal fabrication allows for high levels of customization, catering to specific project requirements. Whether it's bending, cutting, welding, or punching, the process can be tailored to meet precise design specifications, which is why sheet metal fabrication is used in so many different industries.
For product development and prototyping purposes, sheet metal fabrication offers a rapid turnaround time. This enables designers and engineers to quickly iterate and refine designs, accelerating the overall development cycle.
Sheet metal fabrication plays a vital role in the automotive sector, where it's used to manufacture car bodies, chassis components, brackets, and various structural elements. Its ability to produce lightweight yet strong parts is particularly advantageous in vehicle manufacturing.
In the aerospace industry, precision is paramount, and sheet metal fabrication delivers just that. From aircraft fuselages to engine components, sheet metal parts are crucial for constructing lightweight yet sturdy aircraft.
The electronics industry relies on sheet metal fabrication for producing enclosures, brackets, heat sinks, and other components essential for electronic devices. The ability to fabricate parts with intricate designs and tight tolerances makes it indispensable in this sector.
Sheet metal fabrication finds extensive use in construction and architectural applications, where it's employed to create roofing, cladding, faades, and structural elements. Its durability, corrosion resistance, and aesthetic appeal make it a preferred choice for modern buildings.
Medical devices and equipment often require precision-engineered components, making sheet metal fabrication an ideal manufacturing method. From surgical instruments to diagnostic apparatus, the medical industry benefits from the versatility and reliability of fabricated metal parts.
A1: Sheet metal fabrication can be performed using various metals, including steel, aluminum, stainless steel, copper, brass, and titanium, among others. The choice of material depends on factors such as desired properties, application requirements, and budget constraints.
A2: Common techniques include cutting, bending, forming, welding, punching, and assembly. Advanced processes such as laser cutting, CNC machining, and hydroforming are also utilized for precise and complex fabrication tasks.
A3: Design considerations include material selection, tolerances, bend radii, part orientation, and nesting optimization. Designing for manufacturability ensures that fabricated parts meet quality standards while minimizing production costs and lead times.
A4: Yes, sheet metal fabrication is well-suited for prototyping due to its ability to produce low volume runs quickly and cost-effectively. Rapid prototyping techniques, such as laser cutting and 3D printing, facilitate iterative design refinement before full-scale production.
A5: Quality assurance measures include thorough inspection of raw materials, in-process monitoring, dimensional verification, and post-fabrication testing. Working with experienced fabricators and adhering to industry standards ensures the quality and consistency of fabricated parts.
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