Hey all, I recently starting doing some projects that require a significant depth of cut, to a point where I needed to raise the gantry from the bottom up one set of bolts.
I found that I got significant chatter on my cutting when I did this. Has anyone else had this same experience? I've tried to slow the cut, take smaller bites with more passes, etc, but I still get significant chatter.
I've thought about replacing the sides of the gantry with aluminum, but that doesn't look like a small task.
Does anyone else work above the lowest setting on the gantry? Has anyone else experienced this chatter? More importantly, has anyone fixed it?
Gordon
Raising the Gantry
Moderators: al wolford, sbk, Bob, Kayvon
-
- Posts: 15
- Joined: Wed Apr 06, 2016 11:17 am
- Location: Holland, OH
Re: Raising the Gantry
I'm not sure how thick of material you're machining, or if you're machining completely through something, but you could always flip the cradle (where the router mounts) and not move the gantry at all. It's pretty easy to do. This may or may not work depending on your situation, but it is something I've done in the past.
Brandon Albritton
Sales/Engineering - Next Wave Automation
Sales/Engineering - Next Wave Automation
-
- Posts: 15
- Joined: Wed Apr 06, 2016 11:17 am
- Location: Holland, OH
Re: Raising the Gantry
Also, I have an HD3 and have used that high setting and didn't experience chatter. What material are you using? Pass depth? Bits?
Brandon Albritton
Sales/Engineering - Next Wave Automation
Sales/Engineering - Next Wave Automation
Re: Raising the Gantry
Hey guys. I have the Original Shark HD. I couldn't tell you what the speed was, but I did try several speeds. I'm not machining all the way through the matierial, it is just tall material, I'm using a 1 1/2 long end mill with a 1/2 shank. As well as a roundover bit on a 1/2 shank. I'm cutting fir, just some 2x4s so not really hard wood at all.
Gordon
Gordon
Re: Raising the Gantry
Hey guys when doing some machining, I sometimes find I cut the middle of the part down and then when changing bits it is hard to find the projects height because there is nothing to set my touch plate on any suggestions.
Re: Raising the Gantry
Use bottom left corner for your zero. I always set mine at lower left for my set up and home position, this way no matter what size board you have, your zero will be in that corner.
Tony
Tony
Buffalo,NY
"What will matter is not what you bought but what you built; not what you got, but what you gave”
Aspire 12.010, photo vcarve, cut3D.cnc mako shark extended bed with the new upgraded HD 5 gantry with Led pendent.
"What will matter is not what you bought but what you built; not what you got, but what you gave”
Aspire 12.010, photo vcarve, cut3D.cnc mako shark extended bed with the new upgraded HD 5 gantry with Led pendent.
Re: Raising the Gantry
You can also set your Z based off any empty point on your spoil board/base. I'll often do that when changing bits mid-job, usually using the same empty spot each time for consistency.
Re: Raising the Gantry
Thanks guys, staying in the left corner seem to be the way to go for me.