Best way to program a half round cut for a cigar ashtray edge

[MaisonKuro (Tyler)]

Good evening everyone! I’ve just started tinkering with our new machine and I’ve designed a couple of cigar ashtrays to be done out of various woods.

The initial program itself is flawless but I’m having a hard time figuring out the best way to program the cut in order to do the half circle notch where a cigar would rest on the edge of the ashtray. I’m using the base non 3D program at the moment.

I’m looking to get the notches 21mm wide x 10mm deep with a nice half circle profile. Is there a way to program this in the base carbide create v7? I would appreciate any insight or help, CAD is extremely new to me lol.

Our machine is the Shapeoko 5 pro machine with the VFD spindle kit if that matters.

Thank you all for taking the time to read and help out!
Tyler

[WillAdams (William Adams (Carbide 3D))]

Do you have a ball-nosed tool with geometry to match?

If not, you would need to use a smaller ball-nosed and a couple of passes and multiple lines as noted at:

Spoon Possible without CC Pro?

I’d like to make a wooden spoon and was wondering if that’s possible to do with the standard CC? Can it be done with a bowl bit? I don’t have one but can pick one up. Thanks!

if you get stuck, post your file and we will walk through this with you.

[SDGuy (Anthony)]

Use a large Ball End bit.

https://www.amazon.com/MEIGGTOOL-Cemented-Carbide-Woodworking-Diameter/dp/B095NKYCQV/ref=sxbs_sbv_search_btf?content-id=amzn1.sym.f15d2f09-357d-4995-986d-e924fbe183e3%3Aamzn1.sym.f15d2f09-357d-4995-986d-e924fbe183e3&crid=29C8LV1RNHXAD&cv_ct_cx=roundover%2Brouter%2Bbit%2B1%2F4%2Bshank&keywords=roundover%2Brouter%2Bbit%2B1%2F4%2Bshank&pd_rd_i=B095NKYCQV&pd_rd_r=5d4fe703-856a-459e-8fa2-0574fd956230&pd_rd_w=AHOVy&pd_rd_wg=Xa6WD&pf_rd_p=f15d2f09-357d-4995-986d-e924fbe183e3&pf_rd_r=5858HHB2AGBFDQP17HZ2&qid=1692759504&sbo=EO%2BcdOgoisx3waG5xqcZQA%3D%3D&sprefix=roundover%2Caps%2C172&sr=1-1-a61ee601-6e56-4862-a8a2-1d3da5a5406f&th=1

[MaisonKuro (Tyler)]

Awesome I will take a look and see if i can make sense of this, I’m going to attach my file into this reply as well.

I do also have a couple of tools, 1/4in ball nose end mill as well as 1/2 and 3/4 round nose router bits I just do not know exactly how to add the tooling info into CC

Ashtray geometric.c2d (1.4 MB)

[MaisonKuro (Tyler)]

I do have a 1/2 and 3/4in version of these, I’m just not fully sure how to go about adding the tooling info into CC

[SDGuy (Anthony)]

New CC tool entry info

In latest versions of CC, the number of flutes does not matter anymore because of its recipe-based approach for feeds and speeds now (the number of flutes would have mattered for calculating feed rate from RPM and chipload, but now that feeds and speeds values are to entered, the number of flutes is irrelevant). If you do want to set it (for the comfort of seeing the right number of flutes show up in the tool description pane), you will have to edit the tool database CSV file yourself, see: T…

[MaisonKuro (Tyler)]

Awesome! I did a bit of digging last night and found some rough info on a round nose bit speed and feed rates so I entered it all and figured out how to create a tool path using a poly line finally lol. From my test rendering it looks correct, albeit square instead of the round cut shape which if I understand is irrelevant.

I’ve got a speed of 18k rpm and I modified the cut depth to 1mm per pass so I can take it easy when it comes to cutting cross grain and not blow chunks apart. I’m going to run a test tomorrow using MDF and see how it works out.

[WillAdams (William Adams (Carbide 3D))]

It should preview as round if entered as a ball-nosed tool.

[MaisonKuro (Tyler)]

Hmmm I might have missed something potentially because I added it into end mill tab under my custom menu?

[WillAdams (William Adams (Carbide 3D))]

[MaisonKuro (Tyler)]

idk why I didn’t think to add it there, late night CAD adventures lol. I will switch the tool info over to ball mill before I test run the program tomorrow lol. Thank you!