Turns out that "conventional" really is the magic word here. Just tested it with some 3€ Aliexpress single flute (for alu / plastic milling) and it works just dandy in some PE cell foam (the white stuff you often get in electronics packages). It also helps to crank the travel rate way up and plunge deep - otherwise the foam will be displaced rather than cut. For my 500W 3018 it was 1400mm/s X/Y, 800mm/s Z and 12000 spindle and going in 10mm at one time.
anytime you use a down cut or compression, you should run conventional cut. up cut bits run climb. if you are not sure, cut a dado full width and look whrch side looks better.
The difference is that the first one moved counterclockwise and against the cutting edge, and now it moves clockwise in favor of the cutting edge...it's something that many people don't realize. They realize or ignore. That's why the programs have those options...the movement must always be in accordance with the cutting edge. Anything you cut now will be better.
Awesome, just started a new job cutting seadek foam. Years of experience cutting traditional sign shop materials means nothing when cutting foam. Looking for all the tips on bits and speeds I can find. Thank you
Thank you. Currently machining foam inserts for a knife display case and am running into the messy cut edges. Tried all kinds of different bits. Edit: I have the same kind of bit except it’s an upcut, and it still works great.
eres la primer persona que me desasna sobre esto, voy a ver y tratar de que alguien me traduzca vuestras palabras para saber si interpreté bien. Muchas gracias saludos desde Argentina
@@StepcraftInc mi problema era justo este, me dejaba esos pelos en el desbaste, y dejé de utilizar el CNC, quisiera saber cual es la mejor fresa ( 1/4 flute carbide solid ) para tal fin, quisiera trabajar con goma EVA ( foam ) desde ya muchas gracias .
@@pablomatteoda5186 Perdon, pero no tengo mucha experiencia con un CNC, mejor dicho "nula" la compre para simplificar mi trabajo me dedico a Clices ( sellos industriales de gran tamaño ) pero las pocas pruebas que hice no quedaba satisfecho con las herramientas que tenia, no se si eso era el motivo o la falta de dedicacion para poder llevar a cabo un mejor trabajo, soy de Argentina y estamos muy limitados al no poder comprar lo que querramos, por cuestiones de idioma, economia e importacion, sigo grabando con un Router a mano, primeramente dibujando el material, cortandolo con un cutter y luego le paso el Router, esto no te va ayudar, ya que a la vista no queda bien, yo solo necesito que la superficie sea prolija, es lo que va a imprimir, el resto no interesa, lo que vi en este video y algunos datos de gente mas idónea es que el sentido de rotacion + el avance es el que le dan un buen acabado, todavia no pude probar esto ultimo, pero creo que esta seria mi ultima esperanza, si no me veo a vender el CNC. Saludos
That is a good looking cut Erick! Nice to hear you on the channel. What foam were you cutting there and how were you clamping/securing the foam to the table? I typically use XPS because it is stiff enough to clamp with a toe clamps. Would be nice to be able to cut more open cell foams like the one in this video.
huh, that's interesting. it's usually the other way around with machining. climb cut leaves a better finish but conventional causes less chatter and is easier on the machine
Turns out that "conventional" really is the magic word here.
Just tested it with some 3€ Aliexpress single flute (for alu / plastic milling) and it works just dandy in some PE cell foam (the white stuff you often get in electronics packages).
It also helps to crank the travel rate way up and plunge deep - otherwise the foam will be displaced rather than cut.
For my 500W 3018 it was 1400mm/s X/Y, 800mm/s Z and 12000 spindle and going in 10mm at one time.
anytime you use a down cut or compression, you should run conventional cut. up cut bits run climb. if you are not sure, cut a dado full width and look whrch side looks better.
This explanations make the difference. That's why stepcraft makes the difference. They have good material and explain how to use them.
good job
Thank you so much! We plan to put out a lot more content in response to requests from our customers and potential customers.
The difference is that the first one moved counterclockwise and against the cutting edge, and now it moves clockwise in favor of the cutting edge...it's something that many people don't realize. They realize or ignore. That's why the programs have those options...the movement must always be in accordance with the cutting edge. Anything you cut now will be better.
Awesome, just started a new job cutting seadek foam. Years of experience cutting traditional sign shop materials means nothing when cutting foam. Looking for all the tips on bits and speeds I can find. Thank you
Thank you. Currently machining foam inserts for a knife display case and am running into the messy cut edges. Tried all kinds of different bits.
Edit: I have the same kind of bit except it’s an upcut, and it still works great.
What kind of feeds and speeds do you use?
Just needed to change the cutting direction. So I guess conventional means clockwise in Vectric?
eres la primer persona que me desasna sobre esto, voy a ver y tratar de que alguien me traduzca vuestras palabras para saber si interpreté bien. Muchas gracias saludos desde Argentina
Saludos, y si tienes alguna pregunta con todo gusto te ayudamos.
@@StepcraftInc mi problema era justo este, me dejaba esos pelos en el desbaste, y dejé de utilizar el CNC, quisiera saber cual es la mejor fresa ( 1/4 flute carbide solid ) para tal fin, quisiera trabajar con goma EVA ( foam ) desde ya muchas gracias .
@@futuragrabados9458 Necesito cotizar el mecanizado de foam PU (gomaespuma) para insertos de cajas de productos. Tenes alguna experiencia cortandola?
@@pablomatteoda5186 Perdon, pero no tengo mucha experiencia con un CNC, mejor dicho "nula" la compre para simplificar mi trabajo me dedico a Clices ( sellos industriales de gran tamaño ) pero las pocas pruebas que hice no quedaba satisfecho con las herramientas que tenia, no se si eso era el motivo o la falta de dedicacion para poder llevar a cabo un mejor trabajo, soy de Argentina y estamos muy limitados al no poder comprar lo que querramos, por cuestiones de idioma, economia e importacion, sigo grabando con un Router a mano, primeramente dibujando el material, cortandolo con un cutter y luego le paso el Router, esto no te va ayudar, ya que a la vista no queda bien, yo solo necesito que la superficie sea prolija, es lo que va a imprimir, el resto no interesa, lo que vi en este video y algunos datos de gente mas idónea es que el sentido de rotacion + el avance es el que le dan un buen acabado, todavia no pude probar esto ultimo, pero creo que esta seria mi ultima esperanza, si no me veo a vender el CNC. Saludos
That is a good looking cut Erick! Nice to hear you on the channel. What foam were you cutting there and how were you clamping/securing the foam to the table? I typically use XPS because it is stiff enough to clamp with a toe clamps. Would be nice to be able to cut more open cell foams like the one in this video.
Which foam are you using?
😧wow. I never had a climb function back when I was into cnc!
I wonder if one could use it on other precision tools beside a CNC machine?
Hi wich better to cut foam cnc or laser co2? And can change head to knife head?
What is this foam called?
Hey of ypu start from the outside rather then inside ors will also give you a better cut
can you please share the settings for the bit ?, speed, RPM etc.
18,000 RPM, 100 IPM, 1/4" Pass depth
@@StepcraftInc thanks! I’m going to try these in EVA foam to make so many drawer organizers,
Conventional cut seems to be appropiate for pocketing, okay. But what about a profile toolpath? Climb or conventional?
What are you speeds and feeds for this material?
Very good tip. Thanks!
You are a great man
Give me advice how to do it on fusion 360
Yes I Need it too
Great video thanks 😊
huh, that's interesting. it's usually the other way around with machining. climb cut leaves a better finish but conventional causes less chatter and is easier on the machine
THANKS FOR YOUR ADVICE BRO, GREAT JOB
Answer in 2:28
Please advise feed and speed. Thanks
Yeah, this would have been a big help.
Good stuff. Is that the Q you're using there?
Yes I have a Q.408 setup in our Demo Room. I was testing foam on that machine the other day
Thank you!
logical. elastic materials (or aggresive milling) don't like up or side forces. they just give.
What's the difference between up or down? When you're cutting the exterior of a shape, you'll have to cut through, so the force will be down.
went from moving in the direction of bit rotation to against it. . .
What speed and feed rate used???
18k RPM, 100 IPM, 1/4 Pass depth
Thank you
what kind of foam were you cutting ?
Microcell Cross-linked Polyethethylene
@@StepcraftInc thanks
don't buy stepcraft cnc its not worth the money spended 4000 dollar on a worthless cnc dont spend your money on stepcraft cnc