Top Ten Ways to Reduce Laser Cutting Costs – Tip #6

Avoid Double Lines

When objects are positioned side-by-side, a double cutting line can result if there is an overlap. This means that the laser will cut the same section twice – which means you’ll pay double as well! To stop this from happening, take a moment to go through your design file and make sure that there are no shared lines or overlaps.

For more about avoiding double lines and how to fix them, the Ponoko Making Guides provide all the info you need. You’ll find comprehensive Starter Kits for Adobe Illustrator, Inkscape, CorelDRAW and AutoCAD.

Remember that with laser cutting, you are paying for every move the laser makes. Don’t pay twice – check your design file before you upload.

Have you been caught out by this in the past? Let us know your story in the comments below…

Next up we look at another way to keep laser cutting costs down with Tip #7: Pieces close together.

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Top Ten Ways to Reduce Laser Cutting Costs – Tip #5

Simplify details

We already know that it’s helpful to keep things small in size at the beginning. One key aspect that is often overlooked is to keep details simple as well.

This means sticking to designs that take up as little ‘laser time’ as possible.

So how do you go about optimising your design with this in mind? The short version is that the less time it takes to cut, the less it will cost. You’re paying for every movement the laser cutter makes; whether it is cutting, engraving or travelling between cutting and engraving. Many small detailed forms take longer to trace out than fewer larger forms. Circles take longer than straight lines. Items spread out or are further apart take longer to cut than items located close together.

Dense vector line engraving also comes with the same warning. Remember that with lasers, time really does equal money.

What impact has keeping details simple had on your laser cutting costs? Let us know in the comments below.

The next handy hint focuses on another way to save time, and therefore cost, with your laser cutting. Stay tuned for Tip #6: Avoid Double Lines

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Top Ten Ways to Reduce Laser Cutting Costs – Tip #4


Start small

A great tip for first timers and also just as useful for more experienced makers is to keep things small and simple at the beginning. In short, stick to the Ponoko P1 template. Starting small enables you to test your ideas and be confident before charging ahead with multiple items on larger sheet sizes.

This will keep material costs lower, which is handy not only when experimenting with laser cutting for the first time but also if you are trying out a new material that you haven’t used before.

Make the most of the P1 template size by performing small tests of multiple design ideas. Don’t assume your first attempt will be “The One”. Try multiple cuts, shapes, engravings, etc to see what you like the look of. You are much more likely to end up with a design you are happy with if you remind yourself that it’s not about getting that perfect outcome on the first try.

Keep in mind that with laser cutting, more size or complexity means greater costs. So the smaller dimensions of the P1 template help to constrain the amount of making time, which again means both cutting and material costs will be lower.

What savings have you made by starting small with your laser cutting? Let us know in the details below.

Stay tuned for the next handy piece of advice from the Ponoko team. It’s time to pare things back with Tip #5: Simplify details.

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Top Ten Ways to Reduce Laser Cutting Costs – Tip #3

Make a Cardboard Version First

It is an exciting moment when your design is ready to be laser cut, but it can really pay off to do a trial cut in cardboard first before moving ahead with more expensive materials.

Remember, with laser cutting you are paying for the time it takes for the machine to make your design… and cardboard cuts really quickly. This contributes to it being one of the most affordable materials, which means you can get a fast, inexpensive test run of your design. Once you are happy with the cardboard version, you can order your design in a more expensive material with greater confidence that it will come out the way you had hoped.

If your final outcome is to be made from cardboard… well, then kick back and relax because you’re already one step ahead!

Tell us about how trial cuts in cardboard have helped keep your laser cutting costs down in the comments below.

Next up in the Top 10 Ways to Reduce Laser Cutting Costs is a handy bit of advice that is easy to overlook. Tip #4: Start small

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Top Ten Ways to Reduce Laser Cutting Costs – Tip #2

Paper Prototypes From Your Home Printer

Even if you are positive that your design is just right, it is always wise to check those details one more time before sending files to be laser cut. There is a very simple way that this can be done, thanks to your trusty desktop paper printer.

Printing out your design on paper is an ideal way to spot sizing or design errors, see whether holes or tolerances are big enough, and get a general feel for what your final result will look like. You could consider this as a free instant first prototype.

Working with digital files can be super efficient but sometimes people do lose track of whether their design will look just as good in the physical world as it does on-screen. So start your physical prototyping at home, and confirm that everything is a-ok before spending time and money on laser cutting. Once you have your details sorted, then take the plunge and upload your files to Ponoko for laser cutting.

Have you saved by making paper prototypes at home? Tell us about it in the comments below.

The next in our 10 rules for keeping laser cutting costs down is an extension of the paper prototype, but this time the lasers are firing. Stay tuned for Tip #3: Cardboard before expensive materials.

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How To Make Glue-less Interlocking Parts

Using the SketchUp plugin SliceModeler for the best friction fit

There are several ways to create 3D shapes from flat laser cut material, and each have their merits. Many Ponoko users ask questions about how to best design for interlocking parts – making this one of the more popular choices for transforming laser cut forms into 3D objects.

Interlocking parts can be mechanically fastened together, but in this tutorial we are looking at how to design friction-fit connections that neatly snap and lock into place.

Pictured above is a laser cut trivet made by Ponoko user Andrew Jones. To produce this form he used the freely available software SketchUp along with the handy SliceModeler plugin. He then compiled a detailed Instructables walkthrough that outlines his design process for interlocking laser cut products.

To achieve the glue-less design, small curved bumps (nodes) are added into each slot. This extra material allows the parts to slide together with enough contact and pressure to fit snugly. This sounds easy enough, but just how to get the right size and number of nodes takes some time and patience. Slot length, material thickness and density are just a few of the factors that need to be considered.

I highly recommend creating parts with different size and numbers of nodes so you can find the best fit that works for you. You might want a very hard fit that needs to be tapped together with a rubber mallet or you might want a fit that can be assembled by hand without any tools. The only way to find the fit that works for you is try different size nodes.

Click through to the full tutorial where you will learn how to create a basic form using Sketchup and SliceModeler, add the nodes, export into Inkscape and then add the final SVG to a Ponoko template ready for laser cutting.

via Andrew Jones on Instructables

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The Ins and Outs of Laser Cut Holes

How to get your design right for attachments to laser cut jewellery

from the Ponoko Showroom – left: madebydan, right: SuperVery

One of the most popular applications of the Ponoko Personal Factory is to make custom jewellery. This post covers advice on how to optimise your design for attachments that enable laser cut jewellery to actually be worn by someone.

Making jewellery is an excellent way to get a feel for laser cutting and try out a range of materials. Popular rigid materials include plywood, acrylic, veneer mdf, bamboo, metals; while leather and felt are commonly used soft materials.

Much of the jewellery is based on 2D shapes, so minimal prototyping is required to get the optimum result in final product. However, there are still a few problems that jewellery makers run into. Many of those are the result of not considering how other components or findings, such as jump rings, clasps, pins, etc will be attached. The other contributing factor is material durability. You have to use enough material to avoid breakage.


left: chromatophobic, right: taprobane

If you are wanting to attach a chain to your jewellery, you need to cut a hole somewhere in the shape for the jump ring that will hold the chain. But where should the hole be placed, and how big does it need to be? These details are determined by the combination of material thickness and overall design. Your design and material choice dictate the size of hole and size of jump ring to be used.

You need to leave enough material around the hole for it not to break, so it’s worthwhile checking Test Cuts photos in each of the Ponoko materials to get an idea of how finely you can cut the material. However, if the hole is too far inside the design it will not only compromise the aesthetic, but get in the way of the jump ring.

Material thickness Recommended hole diameter Recommended jump ring size
3.0mm / 0.118in 2mm / 0.079in 5mm / 0.197in
4.0mm / 0.157in 2.5mm / 0.098in 7mm / 0.280in
5.0mm / 0.197in 2.5mm / 0.098in 9mm / 0.354in
7.0mm / 0.280in 3mm / 0.118in 11mm / 0.433in

If you’re unsure whether your hole placement is functional, you can quickly draw a 1:1 cross-section of your material with different size holes and position your jump ring over the image to check the fit. The diagram below is an example.

Note how in this example, you can see that this figure illustrates how a 2mm hole in a 7mm thick material is too narrow for a jump ring to fit through.

Sometimes a circular hole just doesn’t work with the design, but don’t let it stop you. Instead, you can make the hole follow the contours of the design, which is more considered, or better yet, make it an integral design feature.


chromatophobic, Anna Corpron

This content originally appeared in a post on the Ponoko blog by Yana Skaler.

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Top Ten Ways to Reduce Laser Cutting Costs – Tip #1

Make a Digital Prototype Before You Spend Any Money

When you make something with Ponoko, there are 3 key costs to consider:

Making, Materials, and Shipping.

Making cost is all about labor — mostly machine labor and a little bit of human labor. Think of your design file as a work order; a set of instructions for the machine to follow. The simpler and more efficient your instructions are, the less time it takes the machine to follow them. And that means lower making costs.

Materials vary greatly in cost and your material choice will also have an impact on making time. The general rule is that thinner (and lighter) materials will cut faster, and the quicker your design gets cut the less it will cost you.

Shipping costs can have quite an impact on smaller projects, so see if you are able to combine several products onto a larger sheet size to reduce the per-unit price. For larger or more complex designs, it may be worthwhile taking advantage of Ponoko’s $100 free shipping threshold.

In this series of posts, we expand on each of these areas to give you the 10 best ways to keep your laser cutting costs down.


Tip #1: Digital Prototyping

Before spending any money, you can actually save a surprising amount just by tweaking the order process so that everything works in your favor.

Ponoko users may be familiar with the Product Recipe, a handy Ponoko walkthrough that new users are taken to as an introductory tour after creating an account.

A part of the process that is explained is the concept of Digital (or Zero Cost) Prototyping. How this works is that the Personal Factory is used to price many different design iterations instantly, revealing where the project can be optimised to save money on laser cutting, shipping and more. The best part is that you get all this valuable information without spending a single cent.

As you’ll see in the following results, that’s time well spent.

The Product Recipe example features a laser cut coaster that goes from an initial quote of $5.40 per unit down to $1.64 per unit prior to anyone opening their wallet.

That is quite a saving. Exactly how this was achieved will make more sense as we work through our 10 rules for keeping laser cutting costs down. Stay tuned for Tip #2: Paper prototypes, and let us know in the comments below if digital prototypes have helped you save money with your own laser cutting.

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Top 10 Features You May Not Have Used

We’re always adding new features & improvements here at Ponoko: Faster making times, lower shipping options, more materials, a streamlined checkout process, support for new software packages, the list goes on and on.

It’s so long, in fact, that we’ve gathered some of your Personal Factory’s lesser known features here to make sure you don’t miss out on them.

Join us as we count down the top 10 features you may not have used. Hopefully you’ll find something here you didn’t know about before.

#10. Order status information:

Last year we completely redesigned our order status page. You can now double check the details of your order, get progress updates, and tracking information once it has shipped. Just visit ponoko.com/make and click on “show details” to get the low-down on your latest order.

(more…)

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Comparing Stains on Laser Cut Wood

How to add a little something extra after all the cutting has been done

With all of the different material options available for laser cutting, it may seem like you are spoiled for choice. But sometimes it is nice to have a little more control over your finished outcome, and that’s were oils and wood stains can do wonders to transform the look of a material.

In this handy test-run and resulting visual comparison, Josh has taken a look at some of the popular Ponoko materials and how they perform with different finishes.

As well as putting together the table pictured above, he has noted down a few handy tips and material highlights that will help you make the right choice for your own laser cutting. Read on in the Ponoko Support Forums and learn how you can get the best possible outcome with stains and finishes on laser cut wood.

This content originally appeared in the Ponoko Support Forums.

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