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Best cutter for thick flexible magnet sheets

jahcurejahcure Member Posts: 21
Hello thank you everyone in advance for your help. I'm looking to create custom cut car magnets and I already have the design. I don't necessarily need my machine to be able to print on them I will only need the cutter to be able to cut multiple shapes out of flexible magnet sheets (including small intricate and larger rectangular shapes). The magnetic sheets I'm planning on using are quite thick at 30mil. Does anyone have experience cutting material this thick?

Based on my research I'm having a hard time figuring out which machine will be best for this job and don't want to commit to a machine and later find out it is incapable of what I am trying to achieve.

In short: best cutter machine for cutting shapes out of 30mil thick magnetic sheets.

Thanks everyone!

Comments

  • GabeGabe Moderator Posts: 4,391
    @SandyMcC,  here's a challenge for you.  :) 

  • jahcurejahcure Member Posts: 21
    @gabe presenting challenges with my project, I like it!
  • Liz_ALiz_A Member Posts: 9,527
    @jahcure - KNKUSA.com sells KNK cutters, and those cutters cut this brand of magnetic sheets like butter, from my own personal experience:

    https://www.magnummagnetics.com/custom-sheeting/default.aspx?gclid=EAIaIQobChMIsqjf6f2Y1wIVBi1pCh0B0AqqEAAYASAAEgKFAPD_BwE

    I found that 30 mils is about 0.03 inches. This magnetic sheeting comes in a variety of thicknesses ranging from .007” (.17 mm) to .060” (1.52 mm), but KNK does not say specifically which one that is.

    And KNK also sells this:

    http://knkusa.com/product/8-5″-x-11″-printable-magnetic-packs-10-pack/

    Which I have also cut with 3 different KNK cutters. The KNK definitely have the power while other lesser priced cutters do not.
  • jahcurejahcure Member Posts: 21
    @Liz_A Thankyou so much for the info! The KNK line looks really nice and it sounds like you've got some good experience with using it. Cutting 30 mil like butter is exactly what I wanted to hear! Do you have any input on which machine you believe to be best for this need between the Force, orbit and maxx air?

    Thanks for your help.
  • SandyMcCSandyMcC Member Posts: 7,099
    What are the maximum dimensions you're hoping to cut?
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @SandyMcC the maximum demensions for the largest rectangle to be cut is about 1/4 inch x 6 inches.
  • jahcurejahcure Member Posts: 21
    Correction, more like 7.5 inches
  • MeFlickMeFlick Member Posts: 9,028
    One word of caution for anyone looking for magnetic sheets that can be cut and used on a car.  Make sure that you get the correct magnetic sheets for that purpose because all magnetic sheets are not created equal when it comes to being able to be placed on a car and not get blown off the car when the car is traveling at higher speeds.
    Go Vols!
    image
    Cutting with 18" Silver Bullet and a KNK Force (the rest are collecting dust!)
  • jahcurejahcure Member Posts: 21
    > @MeFlick said:
    > One word of caution for anyone looking for magnetic sheets that can be cut and used on a car.  Make sure that you get the correct magnetic sheets for that purpose because all magnetic sheets are not created equal when it comes to being able to be placed on a car and not get blown off the car when the car is traveling at higher speeds.

    Thankyou for the advice, from my understanding the strength of a 30mil magnet will most likely be strong enough to hold at high speeds on a vehicle as is usually a standard of thickness used for this purpose.
  • Liz_ALiz_A Member Posts: 9,527
    @jahcure - please note that I did not say that "Cutting 30 mil like butter" on KNKs, I said I have cut the products linked in my post on KNK cutters. KNK does not provide the specifications on their product page as to how thick that material is. And that material sells in several thicknesses. So you might want further clarification. 
    ;)
  • jahcurejahcure Member Posts: 21
    > @Liz_A said:
    > @jahcure - please note that I did not say that "Cutting 30 mil like butter" on KNKs, I said I have cut the products linked in my post on KNK cutters. KNK does not provide the specifications on their product page as to how thick that material is. And that material sells in several thicknesses. So you might want further clarification. 
    > ;)

    Ahh thanks for clarification. I'll try an email directly to KNK while I wait for any other forum members to chime in.
  • 1cardcreator1cardcreator Member Posts: 786
    jahcure I believe Sandy has been known to sample cut material you send her if you ask.  Also you should be specific on sizes and quantity's because different machines have a wider or narrower cutting area.  I would also suggest you ask about repeat cuts and what is involved.  I think the KNK MAX is more suited to larger (in quantity) continuous projects than say the KNK Zing, but I am not familiar with how thick it will cut.  You need to know how the machines work and reload to know if they will suit your needs.  I love my KNK Zing, quality product with a lot of support.  ~Diane
  • SandyMcCSandyMcC Member Posts: 7,099
    Their printable magnetic sheets are 15 mil and their regular magnetic sheets are 35 mil. When cutting the 35 mil, I use 2 passes but the cuts are very clean on any of their models. I can test cut a few shapes for you and mail them to you, if you like. 
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @SandyMcC Thankyou so much for getting back to me. As long as you have had success with cutting 30 mil I will trust you and take your word for it, thanks for offering the test cut though.

    Also for anyone else seeking similar answers just to confirm what sandy has said I received an email back from KNK Vice President who informed me the zing orbit would fit my needs just fine.

    Thanks again for all the input everyone!
  • SandyMcCSandyMcC Member Posts: 7,099
    If you're on Facebook, we have a very active group for Zing owners: 

    https://www.facebook.com/groups/KNKZing/

    Hope to see you there!
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @SandyMcC thanks I've been checking out the Facebook group.

    One more question for everyone, with the zing, what is the smallest shapes you are able to cut out? included in my design are small Stars approx 1/4 inch. Would this be possible?
  • SandyMcCSandyMcC Member Posts: 7,099
    You want to cut small stars from the magnet material itself or from, say, vinyl to place on top of the magnet material?
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @SandyMcC ideally the stars would be cut from the magnet itself, yes
  • SandyMcCSandyMcC Member Posts: 7,099
    I cut these from 35 mil and, as you can see, the thick material blade has a tough time with the points on such small shapes. I cut them at 0.25", 0.35" and 0.5". Note also that the stars have different radiuses as I wasn't sure the exact shape of your stars.  The second photo shows the stars in the software.




    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @SandyMcC wow you have really gone above and beyond for me here and I really appreciate the help. That is great and very impressive. I will be 100% purchasing myself a KNK machine (possibly a used maxx air) for my projects!
  • SandyMcCSandyMcC Member Posts: 7,099
    My curiosity gets the better of me!  lol  I do enjoy testing and no one had ever asked for such small shapes from a thick magnetic sheet. 
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    Well I'm very impressed and very excited to get a hold of my new machine!
  • jahcurejahcure Member Posts: 21
    @SandyMcC another question for you! I'm currently reading through your startup manual.
    For your 35 mil magnet cuts, are you using the Mat (in the Manual it says may may not be needed for thicker material)?
    What force/ speed did you use?
    Did you do a multi cut?

    Sorry for so many question, just rather skip to what has already been found to work rather than trial and error.
  • Liz_ALiz_A Member Posts: 9,527
    @jahcure - Sandy is offline right now. If you are going to be cutting right through the magnet material including the sheet, then I would use a mat. The general recommendation is that if the material being cut does not have it's own backing which is not cut through, you use a mat. Does that help?
  • jahcurejahcure Member Posts: 21
    @Liz_A thanks! Yep that answers my mat question as I will not be using any type of backing on the magnets
  • JimmyDoorJimmyDoor Member Posts: 1
    edited November 6
    ThanksMy older brother also seeks this cutter machine. I thank you for this info, I think it will be interesting for him to visit this page.
  • SandyMcCSandyMcC Member Posts: 7,099
    jahcure said:
    @SandyMcC another question for you! I'm currently reading through your startup manual.
    For your 35 mil magnet cuts, are you using the Mat (in the Manual it says may may not be needed for thicker material)?
    What force/ speed did you use?
    Did you do a multi cut?

    Sorry for so many question, just rather skip to what has already been found to work rather than trial and error.
    Whoa, I said what?  lol  If you can recall exactly where you read that, I need to go revise or clarify.  The only time you don't need the mat is if the material has a backing sheet that the blade wouldn't be penetrating, such as vinyl, HTV, or rhinestone transfer material. 

    The suggested settings for your initial test cut are listed in the user manuals and also linked at the support page for each cutter.  For 35 mil magnet sheets, being cut on the Zing Orbit, the suggested settings are blue blade, 2 passes, pressure of 120, speed of 10, blade tip height of 10.   Suggested settings are not absolutes. Every user should conduct their own test cuts and adjust as needed.  Also, as a blade dulls, you'll be able to increase the pressure to get a longer life from that blade.
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @SandyMcC I'll reread through the manual and see where I interpreted the no mat thing.

    One more question, I have the machine cutting like butter!! Set at force 180, speed 10, with the 60 degree blade. The only issue I'm having now is (I think due to the high force and large/ intricate cut) my mat will start to move slightly during the cut, just enough to make my right angles look off and skewed.

    Any suggestion on how to help prevent the mat from moving? I have placed material under the mat where all the wheels are so the wheels can put extra downward pressure on the mat. My mat is only about 12" wide which is not near as wide as the max width for a mat. Would buying a new mat which is the exact width of the cutting surface help this issue?
  • Liz_ALiz_A Member Posts: 9,527
    @jahcure - like Sandy, I too am curious where you interpreted the no-mat thing. =)

    If your mat is moving, then things to check are:

    - Make sure the pinch wheels are clamped properly
    - Make sure the pinch wheels are positioned correctly over the gritty part of the bar beneath them
    - I would not put something underneath the mat to make it thicker for the downward pressure, instead I would put something on top of the mat under where the pinch wheels will travel and make sure it is well adhered to the mat. So for example I use a fabric washi tape under the path of my pinch wheels. It makes for a good grip for the pinch wheels and prevents the pinch wheels from getting "gummed" up by the adhesive on the mat if the pinch wheel is travelling on adhesive on the mat
    - check to make sure that the blade is not so overly exposed and the pressure is so high that the blade is catching in the mat and dragging it. This is a common cause. If you can see cut marks in the mat, in the same shape as what you are cutting, then perhaps there is too much blade tip AND/OR too much pressure being exerted. Less blade tip, less pressure and more passes may be the answer.
    - did you not get a mat with the cutter?

  • SandyMcCSandyMcC Member Posts: 7,099
    What model did you buy?  
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    @Liz_A yes I did get the mat with the cutter (but purchased used so it could be an aftermarket mat I guess)

    Good suggestions, I did see slight drag marks in the mat, I'll try decreasing blade exposure slightly and see how that looks. Thank you!
  • jahcurejahcure Member Posts: 21
    > @SandyMcC said:
    > What model did you buy?  

    The maxx air
  • Liz_ALiz_A Member Posts: 9,527
    @jahcure - all the KNK mats are branded. The one that comes with the cutter is fairly thick, 13 inches wide, and 22 inches long. At least the one I got with my Maxx Air is like that.
  • SandyMcCSandyMcC Member Posts: 7,099
    edited November 8
    Congrats on gettting a used MA... great model! 

    The Maxx Air originally shipped with the thick 13 x 22 mats that had no adhesive. However, since then, KNK USA went with thinner mats that do have adhesive.  They both work great but, based on the material being cut, sometimes the mats need more adhesive or they need less.

    To follow along with Liz's suggestions, it's always better to use less blade and more force to get the cuts you need. Now, that doesn't mean excessive changes! Obviously if you retract the blade too far, there won't be enough exposed to penetrate the material. That's kind of a critical thing.  :)   But once you have enough blade showing that can cut through the material, then that is set. From there you work with pressure and speed.  With thick magnet, I always recommend a second pass rather than trying to force the blade through the material in a single pass at a really high force. It's somewhat akin to cutting through a thick steak.  :)  

    Feel free to post ALL of your questions and needs for clarification. Successful cutter owners are those who reach out for help and learn from making lots of mistakes... like I do!  :)
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • jahcurejahcure Member Posts: 21
    Awesome, Thankyou guys. I'm really loving the way it's cutting through the magnet at the current settings, very clean intricate and large cuts. I'm going to go ahead and retract the blade a little I think that's going to be the main issue with the mat moving slightly through the project.

    I have also found that the 2 passes is excellent. I'm going to try increasing the speed a little bit as well to see how that works out.

    Also, when I try to turn the laser on in WISYWAG cutting im unable to do so, is it possible the light is out and needs to be replaced?
  • SandyMcCSandyMcC Member Posts: 7,099
    First off... CONGRATS on a great start!  Glad you're getting the cuts you need. Magenet is a "nice" material to cut.  :)

    Since you have a Maxx Air, then are you turning on the laser while in Online mode? (It's different on the original Maxx model).  If you can't get it turned on in Online mode, then you can contact KNK USA and buy a replacement. On the Maxx and Maxx Air models, it's fairly easy to replace yourself.    

    If you're not planning to do Print and Cut applications, then you can set the Laser offset to 0 and 0 and then the tip of the blade for WYSIWYG origin setting. In the cut settings window, click on the little wrench icon next to where you have Maxx Air selected and then change the Laser Offset to 0 and 0. The location of the tip of the blade then determines the origin.  
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • GabeGabe Moderator Posts: 4,391
    @jahcure, since you say that the corners of right angle cuts look "off and skewed", I wonder if it might be the blade offset.  When set incorrectly that can also produce rounded corners, or corners with divots in them.  Check the manual for the machine and see what it says about blade offset for the type of blade you are using.  I don't use a Maxx Air, but my Zing has three types of blade; blue, red and yellow.  Each one has a different blade offset and each has a different purpose.  Blue is for deep cutting situations, red is the "standard" blade, and yellow is a fabric cutting blade. 

  • Barb_craftroboBarb_craftrobo Member Posts: 38
    One other caution with magnetic sheeting, if you're going to be using on vehicles, is the manufacturers use instructions that may specify DAILY removal and cleaning. Heard many stories of magnetic sheeting and decals becoming permanently bound to the vehicles.
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