Avatar

Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
CNC Cutters advice please
August 11, 2017
12:22 pm
Avatar
Ness

Forum Posts: 1558
Member Since:
October 4, 2012
Thanked 446 times in 1558 posts
Reputation: 18946
sp_UserOfflineSmall Offline

Hi Elliot,

The downward cutters are used to pocket so that there is no splintering on the top surface.

The upward cutters used on the final cut of the panel so that there is no splintering on the bottom surface.

A good nesting tool today has a double cut with the bottom cutting upwards and the upper section cutting downwards.

Here’s a drawing of the tool that we supply with our ready to run CNC configurations:

nest_cutter.pngImage Enlarger

This cutter can be plunged into the material as the end angle is upwards and will evacuate the waste up.

It can then be moved side ways so that the upper half is cutting downwards and not splintering the upper surface.

When cutting the material the lower cut being upwards will not splinter the bottom and the upper cutters pushing down will not splinter the top surface.

For a single tool CNC this type of cutter could be a good investment.

All the best,

Ness

sp_PlupAttachments Attachments
August 10, 2017
8:32 pm
Avatar
Elliot Gay

Forum Posts: 36
Member Since:
October 8, 2016
Thanked 0 times in 36 posts
Reputation: 182
sp_UserOfflineSmall Offline

So i have learnt today that really we should be using 2 types of cutters:

An upwards cutter for the final ‘outline’ cut and a downwards cutter for the ‘pockets’

The downwards cutter shouldnt be ‘plunged’ into the board – so how do i set this in VCarve? is this to do with ‘Raster’ or ‘plunge move angel’

Where as with an upwards cutter you can plunge into the board?

Does this make ring true?

Any advice would be much appreciated 🙂

Regards

Elliot

August 9, 2017
8:09 pm
Avatar
Elliot Gay

Forum Posts: 36
Member Since:
October 8, 2016
Thanked 0 times in 36 posts
Reputation: 182
sp_UserOfflineSmall Offline

Hi, please can you advise on what type of cutters we should be using…

We only have a single head cnc machine and want so minimise the cutter changes. 

We are setting up for making kitchen and bedroom units with a rafix cam system. So far we are using a 5mm bit for the drilling and a 12mm for pocketing the cams and outlining.

The problem is, should we be using a upwards cutter or a downwards cutter? as the pocketing of the cams i believe needs to be a downwards cutter where i believe the outlining needs to be an upwards cutter – is this correct?

When we are pocketing the 1.5mm for the top of the recess cams its leaving the cut very rough.

The material we are using is MFC from egger

Regards

Elliot

Forum Timezone: Europe/London

Most Users Ever Online: 58

Currently Online:
16 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

terry: 253

mark nichols: 117

jimbouk: 105

Christopher Paré: 97

Jack Travis: 66

Peter Brown: 61

Duayne Naugle: 56

Thusitha Karunatilake: 52

Rafal Meckovski: 52

Antony S Brighton: 47

Member Stats:

Guest Posters: 2

Members: 81962

Moderators: 4

Admins: 3

Forum Stats:

Groups: 2

Forums: 8

Topics: 860

Posts: 5203

Newest Members:

Guchi Guchisiento, Jackson Ndhlovu, Elena Zadic, Markus Jakob, Markus Jakob, lbalushi ibrahim, John DePrimo, raul lora cruz, raul lora cruz, gogineni kalyaan kumar

Moderators: michel melon: 226, D-Alexandre: 72, admin: 0, urbanelement: 0

Administrators: Ness: 1558, Stefan: 583, Carole Bosy: 16