V-Bits V-Groove information

[sebashtionh]

I cannot seem to find information on what V bits to use for what?
In the tutorials for aspire they just say use this bit or make this bit in the tool dialog but I am trying to find a chart or reference for which V Bit/ V-groove bit to use for what cutting application. is there a chart of training on V bits that shows what each one does ( letter cutting, art cut out )

I tried looking for Sign Training or CNC Router carving training but no luck
any help would be greatly appreciated!!!!

[Adrian]

It's down to personal preferences really. Only you know what look you're going for. A 60 degree v-bit will cut deeper than a 90 degree bit which might be what you want for more detailed lettering then again it might not!

[JamesB]

It would not be practical to try and write a guide because, as Adrian points out, in most cases it subjective as to what would be "correct". One idea to understand this better would add some standard sized bits to your tool database - 60, 90, 120 (degrees) and then use the toolpath preview to see what different parts (tutorial files?) look like cut with the different bits.

Some of these posts may be of interest too:

viewtopic.php?f=3&t=2164
viewtopic.php?f=2&t=22695&p=161928&hilit=vbit+angle#p161928
viewtopic.php?f=2&t=22657&p=161635&hilit=vbit+angle#p161635
viewtopic.php?f=27&t=21194&p=150188&hilit=vbit+angle#p150188
viewtopic.php?f=2&t=22108&p=157316&hilit=vbit+angle#p157316

The above list was just some of the ones that came up with a search on the forum.

Thanks,
James

[IslaWW]

These illustrations show the relationship between the various Vbit angles at a given line width. The first showing approximate cut depths for 30, 60, 90 and 120 degree bits when the distance between the lines is around 0.125" or 3mm. The second shows approximate depths on various bits for vectors of various widths from 1/8" (3mm) to 1/2" (12.7mm)

[martin54]

To add to what James has said about using the preview I would actually go a step further than that & actually cut them on a piece of material for reference. Might be just me but sometimes I think a bit of v=carving looks good in the preview but once it is cut & I look at it from a bit further away wish I had cut it a bit deeper to start with. I would expect it is down to my inexperience rather than anything else but it might help if you had a board you could look at for reference. This was actually something that I had planned to do a while ago & like so many other things still haven't got round to actually doing it yet

[sebashtionh]

It would not be practical to try and write a guide because, as Adrian points out, in most cases it subjective as to what would be "correct". One idea to understand this better would add some standard sized bits to your tool database - 60, 90, 120 (degrees) and then use the toolpath preview to see what different parts (tutorial files?) look like cut with the different bits.

Some of these posts may be of interest too:

viewtopic.php?f=3&t=2164
viewtopic.php?f=2&t=22695&p=161928&hilit=vbit+angle#p161928
viewtopic.php?f=2&t=22657&p=161635&hilit=vbit+angle#p161635
viewtopic.php?f=27&t=21194&p=150188&hilit=vbit+angle#p150188
viewtopic.php?f=2&t=22108&p=157316&hilit=vbit+angle#p157316

The above list was just some of the ones that came up with a search on the forum.

Thanks,
James

Thanks greatly James, I must of not looked hard enough I am Sorry...

[sebashtionh]

Thank You All for the information!!!!

[Ms Wolffie]

These illustrations show the relationship between the various Vbit angles at a given line width. The first showing approximate cut depths for 30, 60, 90 and 120 degree bits when the distance between the lines is around 0.125" or 3mm. The second shows approximate depths on various bits for vectors of various widths from 1/8" (3mm) to 1/2" (12.7mm)

Thank you so much Gary.
Just what I have been looking for.
Saved for eternity

[Larry Stobbs]

One little thing I will add is that I do a lot of military/police/fire emblems, patches, etc. and I have found that if I am doing small letters I tend to use a 30 degree engraving bit and I have even found that the .25 diameter 30 degree bits work almost as well for small letters. They cut deeper which means when I apply stain the letter look more pronounced. However, if you are carving bigger letters, a 30 Degree V bit will carve way too deep so I tend to use a 60 degree bit in a lot of those applications. Previewing the work in Aspire is nice so you can look at how everything will look once carved so don't get too concerned about using the same bit angle on all aspects of a project, often times you may end up using several different bit angles on one carving to get the desires effect

[rbrague]

THANK YOU

[newmexico]

That's very good advice by Larry concerning the differences with 30-60-90 degree vbits and how deep they cut.

I'm lazy here and tend to use my 90 degree too much in vcarving thick and thin lines.
However, we get away with that by using GEL stain to help define those thin lines.

[rbrague]

Thank you
Very Helpful