How to Use Drag Knife on CNC to Cut Leather | ToolsToday Video
ฝัง
- เผยแพร่เมื่อ 1 ต.ค. 2023
- Making a leather tool pouch on the CNC machine using the Donek D4 Drag knife on the new Stepcraft Gen 3 D.840 CNC machine, available on our website www.toolstoday.com/?...
The drag knife cut the leather perfectly leaving nice clean cuts, I love watching it work!
What do you think of how this turned out?
Feed, Speed & CNC Running Parameters
Donek Tools D4 Drag Knife 1/4 SHK x 1/4 CH
toolstoday.com/donek-tools-d4...
Drag Knife Cuts
Spindle Off
Feed Rate: 60ipm
Plunge Rate: 30ipm
Ramp/Lead in: 0.75
Amana Tool 47636 1/4 Inch Shank x 10mm Inner Dia. Dowel Drill/Boring Bit Adapter for CNC Standard Collet/Tool Holder
toolstoday.com/v-12534-47636....
Amana Tool 363005 Solid Carbide Brad Point Drill Bit R/H 5mm D x 55mm Long x 5mm SHK
toolstoday.com/v-6985-363005....
Amana Tool 363002 Solid Carbide V-Point Drill Bit R/H 2mm D x 49mm Long x 2mm SHK
toolstoday.com/v-6978-363002....
Amana Tool 364020 Drill Adapter 10mm SHK for 2.0mm Drill
toolstoday.com/v-6994-364020....
Other Tools Used
STEPCRAFT New 3rd Generation D.840 CNC Machine System
toolstoday.com/stepcraft-3d-8...
Jet 719200 JWL-1221VS 12 Inch x 21 Inch Variable Speed Wood Lathe
toolstoday.com/jet-719200-jwl...
Links
* Subscribe - / toolstoday* Shop the website - www.toolstoday.com
* Like at Facebook - tinyurl.com/toolstoday-facebook* Follow on Instagram - / toolstoday
More Links
Amana Tool® www.amanatool.com
Vectric VCarve Pro Software for CNC
toolstoday.com/vcarve-pro-10-...
Vectric Aspire Software For CNC
toolstoday.com/aspire-v10-cnc... - วิทยาศาสตร์และเทคโนโลยี
![[UNCUT]”หมอปลา และทนายแก้ว” ลากไส้ขบวนการ เด็กเชื่อมจิต จ่อเอาผิดทั้งครอบครัว I คนดังนั่งเคลียร์](http://i.ytimg.com/vi/9zXrAIVBQFo/mqdefault.jpg)
Really love your straightforward walk through a project; no fluff, no theatrics, just thorough solid content. Thanks!
Thank you for the kind words and taking the time to say so, I really appreciate it!
Leather on CNC🤯. Very cool
Thank you, it's a lot of fun to work with!
You got yourself an Egyptian woodworker loyal follower, your videos are well made and informative ❤
Nice to see that it works with the vacuum. Great Video as always.😊
Thank you very much!
Beautiful work. Well done!
Thank you very much!
really awesome!
Thank you!
my favorite part of the video is that you're starting to sound less like a robot in your voiceovers....and more like a human, and it sounds like you've slowed down your speaking too, which is great. I really hope you don't take that personal at all🙌🏻. great project, i'm interested to try this too...i just got a laser though, so it'll be interesting to compare! thanks for the tips!
No offense taken at all, it's something I'm really working on! I'm glad you liked it! The leather is so fun to work with!
would really love a deeper diver on the tool paths to do this on a shapeoko
We will do another leather project in the future and also offer plans for it where it will go deep into that and show you how to do it. You would need to be using something like the Vectric software as Carbide Create doesn't have some of the features to control the drag knife and get it to cut where you want, specifically the lead and ramp into the cut.
So awesome.
Thank you!
Loved this. Maybe you can use magnets to hold metal tools
Thank you! That certainly would be cool!
Lovely tool...
It sure is! thank you.
Next project: a saddle!
That would be a cool one! Unfortunately, I don't have any horses and don't ride very often.
Nice project and nice presentation. Thank you!
Glad you liked it!
Mind blowing. Amazing idea, and amazing work!
Thank you so much 😀
Nice job
Thank you! Cheers!
Well done.
absolutely dope! well done!
Thank you for the kind words! Cheers!
Creative
Thank you!
Excelente video 😮😮
Thank you!
So you didn't use the drag knife gadget in VCarve? Is that because you had no sharp cormers?
Correct, I didn't use the gadget and didn't have any sharp corners. I also don't like that I can't tell it what side is the offcut and which side is the project piece, so sometimes it puts it's lead ins on the wrong side and I can't change that, unless there has been some update to the gadget. I find manually doing my lead ins lets me control it better.
@@ToolsToday by 'lead ins' do you mean the starting point of each cut? With the dragknife gadget, you either create a node and assign it as the starting point, or you can choose an existing node and make it the starting point. I cut leather with a drag knife frequently and I find the gadget to be invaluable, although I've never tried not using the gadget. All that I have to do is assign starting points to appropriate nodes so that the knife always begins in the same direction for each cut. And of course, the gadget will allow sharp corners. The way that it accomplishes this is quite fascinating. Having only used the gadget, I don't have a basis of comparison...but the gadget is fast and easy. Great project, by the way! :)
Thank you! When I set a lead in, I'm ramping in outside the cut line of the material so that way the knife is oriented in the correct direction before I get to the line I want to cut. Is there a way to start outside the cut path with the drag knife? I'll admit, I haven't tried it much so don't have a ton of experience with it, but it was orienting the knife in the wrong direction when using it and cutting into my finished piece instead of the waste when trying to orient it.
@@ToolsToday Understood. With the Drag Knife gadget, you can start the cut directly on the line in most cases. So you don't always need to have a shallow lead-in cut for the sole purpose of orienting the knife. Actually, it's best to avoid them. When you get the tool set up, you'll orient the knife in the direction that all of your cuts will begin. And then you assign starting points that will use this same orientation for every cut by assigning proper nodes as starting points.
So let's say that you set up the knife facing to the right meaning that you will want to start each cut from left-to-right. In many cases where you are making a complete circle, square, (or any closed vector), the drag knife will end with the same orientation since the end of the cut will be back at the beginning of the cut. So the knife is back to being oriented left-to-right after cutting. Then when the knife is lifted to go the next part, you'll make sure that the node for this next part is also set to a point where the knife will start cutting left-to-right. This works for most complete shapes.
If you don't have complete shapes (closed vectors), you still can (in most cases) choose a node that will still give you a starting point that will begin cutting with the same orientation as the last cut. For instance, if a cut ends pointing north, assign a node to the next cut that will also cause the knife to start cutting to the north.
But....there will be times that you simply can't do this. In this case...if the node that you chose as a starting point is making a shallow lead in that is cutting the non-waste side of the material, switch the starting node to the opposite side. The software is making an assumption as to which way the blade is oriented. If the software is incorrect in this assumption, then just switch the starting node to the opposite side and the lead in will then be on the waste side.
I discussed this over at the vectric forum a while back. This should also cover the topic well...
forum.vectric.com/viewtopic.php?f=2&t=40457&p=293987#p293987
As someone who does a good amount of leatherwork, you'll likely be much happier with natural vegetable tanned leather for future projects. It's going to be stiffer, easier to work, and more durable in the long term. You can also control the color with dye if you want to. For a project like this, I'd recommend about 8 oz.
And thanks for getting a larger audience to see drag knife work like this. Such a handy tool for leatherwork. But lots of leathercrafters don't consider using a drag knife. Most will invest in a clicker press, but then you are locked in to one design with each die, and you have to hire out the construction of each die. Lasers work, but they smell like burning flesh (since you are literally burning flesh) and leaves burnt edges that are difficult to remove. So the drag knife gives you versatility to create any design (without dies), and also leaves clean edges. Best of both worlds. There is a place for all methods, but rarely do leathercrafters get into drag knives for some reason, and they are missing out. Hopefully more will see your video. And great work! Thanks for sharing!
Nice work 😊 How to you calculate pocket size for the tools? that part still confusing when trying to design leather patterns.
Hello! How is the knife operated? Programmatically or by moving the axes?
What kind of vacuum table are you using? DIY or COTS
I am looking exactly something like this at a smaller scale where I have a rubber sheet of about 4 sq inch and 3mm thick. It is marked with some precision layout and needs to be cut and holes punched (not drilled) at very precise locations with a tolerance of 50 microns. Do you know of any machine that can do it?
Also, since my workpiece may not be the exact same size evrytime, is there a way to tell the machine some reference points on the workpiece (in addition to xy 00) so it knows if the workpiece has a little rotation.
Thank you.
Could ya please to say what program used to move the dragnife?
I'm slightly confused on the zero position. You set the position using the offset of the drag knife but unless I missed it you didn't change it when putting the regular end mills in. Wouldn't the holes be drilled offset if the drag knife offset wasn't ignored during the drilling?
Correct I set it using the drag knife which is accounting for that offset and didn't change it with the drill bits. With this setup, I'm setting the x and y zero to the drag knife so it's essentially offsetting the drill bits, and hole locations, for me by the same distance the drag knife is offset. It resulted in having everything nicely aligned!
@@ToolsTodayI guess looking at your design further my question is answered. The knife is indeed dragging on the correct line, which is off axis where the cut takes place but lines parallel to the direction of travel are directly in line with the spindle center, they are just cutting with a slight trail.
Very cool process and new skill. I really enjoy your videos. I actually just crudely converted my CNC bed to a vacuum table because of watching how much more streamlined your process is.
That's awesome to hear thank you for the kind words and taking the time to say so! Correct, it took some time for me to wrap my head around, but it worked surprisingly well!
Your video is perfectly produced. I don’t think you could have edited any scene out. Well scripted and good camera use
Wow.
Thank you very much for the kind words and taking the time to say so. It really means a lot to me!
how is the radius results ? I mean you gave 5 mm raduis and it cuts how much different ?? there is an offsett 1.63 mm on the knife. what is its effect ?
what is the softpwear
The drag knife is not available on your website. Can you tell me how can i buy it ? Tks
This is a very nice and creative work
Just i want to know wath is the name of that program that you make toolpath please tell me thanks 😊
Thank you! I use Vectric V-Carve Pro software available on our website.
How do you know how much leather you need to cut out your project
I didn't know how much leather it was going to take until I had everything designed out.
@@ToolsTodaywith this set up can you cut out from odd size leather? Not ever hide you can get a perfect square from.
Yes, definitely. Check out the full length video we did on making a mallet recently. I show how I use an odd size piece there, it would be the same technique with leather.
Did you use any nesting layout tool to minimize waste?
Not on this project. I needed a little bit of material between the pieces for the vacuum to hold down. I could have gotten a little closer, but really wouldn't have saved a ton of material with the way these pieces laid out.
what is the name of the controller software, please can you tell me?
Where did you get the thread zapper?
I got it from Weaver Leather Supply
Buongiorno che software utilizza questo macchinario per il taglio della pelle?
this kid is coming for batmans job.
360 euros
Screw rivets? They’re called sex-bolts.