If possible, I like to use a tool 1/2-1/3 of the width of the slot and use a HSM style milling path. I've cut 3/4" deep in a single pass in aluminum using a 1/4" bit to make a 1/2" wide slot this way. A strong air blast or flood coolant is essential to clear the chips. Used FreeCAD to generate the tool paths. It is called "Adaptive Clearing and Profiling" in the Path menu of FreeCAD. It is amazing the cuts you can make with this kind of strategy even with a low power spindle or router. The secret is that you are never engaging more than a small percentage of the cutting face of the tool at one time, vs the full diameter of the tool using a conventional slotting path.
Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: Nicklas SB Karlsson <n...@nksb.eu> Sent: Thursday, December 01, 2022 4:07 AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Deep slot chip removal [EXTERNAL EMAIL] Be sure links are safe. tor 2022-12-01 klockan 08:18 +0000 skrev Gregg Eshelman via Emc-users: > Flood coolant, air blowing, or vacuum. Or pre-drill a bunch of holes > to almost finished depth to remove the majority of the waste before > milling. Got that. Then the only question left is if using a mill at least slightly smaller than slot then cutting a deep slot is a good idea. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=05%7C01%7Ctoddz%40pgrahamdunn.com%7C1a9e3f0cec294805660108dad37b9082%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638054824905710770%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=xZthFT91b7lDDWpzKyMw8zJmW2EDLdE2PW80h3GKnIs%3D&reserved=0 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
