Cambam now has a plugin for creating the geometry for making finger joint boxes and for getting the clearances for the fingers I just use a single roughing cut and use a negative roughing clearance until I get it fitting just nice, only one setting to change. Thank you for all the tutorials that you have up, they have been invaluable in the construction and setting up of my machine, particularly your tutorials on Mach3.
Very happy I saw your video. I am using CamBam but never took notice of the corner overcut function and wasted quite some time modeling the shape myself in the past. Thanks for the insight!
This is a perfect video to share with my friends that have no idea what CNC is. Good start to finish conceptual presentation along with a show of the typical tweaking required to get it right.
Patrick ... Thanks for this video. It solved our problem. Your comment about making the depth of the finger should be the thickness of the joining piece solved our problem. It was obvious after you stated it. Ha Keep up the good work you are doing. Mike
Frank. Trick is to specify a corner slightly larger than the cutter. So if I have a 0.25" bit, I'll make corner radius to machine something a little (20% larger). So with a 0.125" radius, It will burn. Specify your corner at 0.140" and not the difference.
Patrick, I don't normally make comments, however, I must respond to something you had in this video; with regard to your comment about the buildup of Glue in the corners, as to strengthening the joint against breakage, or splitting. I have been in woodworking for over 40 years, and it has been my experience that the strongest glue joine is one in which the glue is applied liberally, yet clamped quite tightly and left to dry over 24 hrs. In the event the glue is not clamped tightly, or left as a chunck of Glue, such as you suggest leaving on the corners in your overcut, there is zero strength. It is only a glob of glue. I can cite you to many studies performed by the glue manufacturers and their testing labratories that reinforce this statement.
Patrick I really enjoy your sight, and am in the process of building my own cnc. I am however building a metal frame machine and have added features like compressed air cooling for electronics as well as and air powered Vacuum for vacuum hold down. These items can be purchased at exair.com
Very cool! I'm a big fan of BuildYourCNC I got all the parts for my cnc there. Great video how todo's there. You can check it out at Shadetreecnc TH-cam channel.
Excellent detail oriented video!
Thanks! And thanks for watching a video I made 9 years ago! Your comment caused me to watch it myself, haha.
Cambam now has a plugin for creating the geometry for making finger joint boxes and for getting the clearances for the fingers I just use a single roughing cut and use a negative roughing clearance until I get it fitting just nice, only one setting to change. Thank you for all the tutorials that you have up, they have been invaluable in the construction and setting up of my machine, particularly your tutorials on Mach3.
great video! Your explanation is clear and concise. You're a master!
Very happy I saw your video. I am using CamBam but never took notice of the corner overcut function and wasted quite some time modeling the shape myself in the past. Thanks for the insight!
This is a perfect video to share with my friends that have no idea what CNC is. Good start to finish conceptual presentation along with a show of the typical tweaking required to get it right.
Patrick ... Thanks for this video. It solved our problem. Your comment about making the depth of the finger should be the thickness of the joining piece solved our problem. It was obvious after you stated it. Ha
Keep up the good work you are doing.
Mike
All things considered. Very impressive
Thanks. This was an old video. I am happy you found this impressive.
Hi Patrick, what end mill did you use?
great video Patrick, never thought of making finger joints with my cnc mill.Daniel
This is just one of many. There are tons of joints that can be made with the CNC and some require no hardware, or gluing. Enjoy.
Parabéns pelo vídeo, qual corrente você usa em sua máquina?
i love you! very informative!
Would like to know your planetusb settings. As my blackfoot is much slower on the corners. Can cause friction and burn marks.
Frank. Trick is to specify a corner slightly larger than the cutter. So if I have a 0.25" bit, I'll make corner radius to machine something a little (20% larger). So with a 0.125" radius, It will burn. Specify your corner at 0.140" and not the difference.
Patrick, I don't normally make comments, however, I must respond to something you had in this video; with regard to your comment about the buildup of Glue in the corners, as to strengthening the joint against breakage, or splitting. I have been in woodworking for over 40 years, and it has been my experience that the strongest glue joine is one in which the glue is applied liberally, yet clamped quite tightly and left to dry over 24 hrs. In the event the glue is not clamped tightly, or left as a chunck of Glue, such as you suggest leaving on the corners in your overcut, there is zero strength. It is only a glob of glue. I can cite you to many studies performed by the glue manufacturers and their testing labratories that reinforce this statement.
Totally makes sense. I should not have added that comment. I will add an annotation to correct this.
Patrick I really enjoy your sight, and am in the process of building my own cnc. I am however building a metal frame machine and have added features like compressed air cooling for electronics as well as and air powered Vacuum for vacuum hold down. These items can be purchased at exair.com
Just peck drill out the corners with the smallest bit you have and follow up with a hand file
Yes, that is an option, but this video tries to look at a CNC only option. One day i may look at doing joinery using both CNC and light hand methods.
What CNC machines do you use???
For this, we used the greenBull CNC (buildyourcnc.com)
Did you build the router yourself?
Yes, we sell them at buildyourcnc.com
Itis very helpful work .thanks
Pretty cool !
where is part 2? :)
There isn't a part 2. I was doing this as a part of a CNC users club in Houston. I, unfortunately, didn't have the time to get the other part done.
Very cool! I'm a big fan of BuildYourCNC I got all the parts for my cnc there. Great video how todo's there. You can check it out at Shadetreecnc TH-cam channel.
Great stuff you got there Mr. Moller. Love the rocking chair!