over lapped toolpath

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RShimp
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over lapped toolpath

Post by RShimp »

The pic attachment shows over lapped toolpaths, same bit .25 endmill.
Raised copy, recessed woodgrain background.
Pics attached, one shows the overall sign, the second shows an example of the over lapped tp.
See where over lapped tp would cut away parts of the y and r.
Can i "merge" and make one toolpath so no unwanted cuts will happen?
Not talking about different bits or using bits of smaller diameter.
Asking about being able to "merge" two different toolpaths into one tp using the same bit, into one single tp.
Thank you
Roy Shimp
Attachments
over lapped toolpath.JPG
over lapped toolpath sign.JPG

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scotttarnor
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Re: over lapped toolpath

Post by scotttarnor »

Could you increase the spacing between the letters using Kerning ?
Scott T

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RShimp
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Re: over lapped toolpath

Post by RShimp »

no experience with kerning.
please explain
thank you
Roy

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scotttarnor
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Re: over lapped toolpath

Post by scotttarnor »

The Vectric help can explain it far better than I, basically you can increase or decrease spacing between individual letters or groups of letters.
Here is a link to Vectrics help on the subject.
https://docs.vectric.com/docs/V9.0/VCar ... ction.html
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RShimp
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Re: over lapped toolpath

Post by RShimp »

Just looked at the following link in youtube (below).
I need to maintain the spacing.
Thank you for responding

Space Text Kerning Evenly - Vectric VCarve, Aspire, & Cut2D Quick Tip

RShimp
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Re: over lapped toolpath

Post by RShimp »

pic below shows where the overlapping tp's took off the tip if the y and the r.
thank you
Roy
Attachments
over lapped toolpath pic.JPG

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adze_cnc
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Re: over lapped toolpath

Post by adze_cnc »

Kerning is a red herring. Kerning is adjusting the space between individual letters to make them visually (typographically) more sound. For example if you typeset the name "Tyrone" the "y" will benefit from being closer to (nestled under) the "T" but your average word processor will place them too far apart.

What toolpaths are these? They look like Profile. I'd have expected that you would be using a Pocket toolpath to evacuate all the material between the border and the letters.

Either way rather than creating two separate toolpaths just create one but select the free-standing letters and the border that has the "y".

If you don't like that the cutter doesn't go between the letters your only options are: use a smaller diameter cutter, increase the space between letters, use a V-Carve / Engraving Toolpath.

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martin54
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Re: over lapped toolpath

Post by martin54 »

If the bit doesn't physically fit between the 2 letters then it is going to remove the very tips as it is doing, the only way around that without without making the letters larger, using a different font or increasing the kerning very slightly is to use a smaller bit :lol: :lol:
Is there a reason why you can't increase the kerning? A small amount will not be noticeable to the human eye :lol: :lol:

Oh yes, as adze_cnc says a vcarve toolpath (forgot about that one :oops: )

What sort of size is this to be? If the letters are large & it is to be read from some distance away then you almost always have to alter the letter spacing, I use to do a lot of shop-type signage & the extra spacing allows it to be read more easily from a distance :lol: :lol:
Last edited by martin54 on Wed Jan 04, 2023 7:21 pm, edited 1 time in total.

RShimp
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Re: over lapped toolpath

Post by RShimp »

Thanks adze, i'm kind-of on that track ...Must be a hard thing to do that i'm asking for.
Anyway, thank you again for your help.
Roy Shimp

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adze_cnc
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Re: over lapped toolpath

Post by adze_cnc »

Again, in this case the reason the tip of the "y" is being trimmed is that there are two toolpaths. If you combine the "y" (which is really the inner border) with the rest of the letters in one toolpath the tip will not get cut off and all will behave as the rest of the letters do currently.

RShimp
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Re: over lapped toolpath

Post by RShimp »

Thanks adze.
I've been toying with it.
I'll go back to it.
Roy

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adze_cnc
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Re: over lapped toolpath

Post by adze_cnc »

See attached file. This shows how you might accomplish this using:
  • profile toolpath
  • pocket toolpath
  • v-carve / engraving toolpath
The toolpaths are not calculated to reduce the file size. Just do a recalculate all.

Steven
Attachments
salty.crv
(88.5 KiB) Downloaded 37 times

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martin54
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Re: over lapped toolpath

Post by martin54 »

Any reason why you can't use a smaller bit? Look to be quite a lot of areas where the 0.25 endmill is not going to fit so you are going to be left with quite a lot of material that will need to be removed by some other method :lol: :lol:

RShimp
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Re: over lapped toolpath

Post by RShimp »

Martin- when i do woodgrain signs (pvc substrate) outlining with different dia. bits is noticeable, .125 vs .25 diameters.
However from everyones response i can probably use a pocket method with the .25 as a "rough out" bit an an the .125 as the clean up bit.
Thanks for getting back with me.
Roy

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