Yes, trying to decide if I do that or just make it available on Festool printables
In the past, the volume of sales on things I came up with (RO 90 paper alignment tool, etc) have been negligible.
MB 40 Vacuum base modification
- Thread starter fritter63
- Start date
In the past, the volume of sales on things I came up with (RO 90 paper alignment tool, etc) have been negligible.
Michael Kellough
Member
Does that work for old timers like me without a printer?
You'd have to find someone to print it for you, there are services for sure. Or if I decide to offer them for sale.....
Hey, does anyone know the significance of the two outside notches that are about 20mm from the front? Not the centering ones.
tjbnwi
Member
- Joined
- May 12, 2008
- Messages
- 7,320
22.5mm? They may align with the center 22.5mm that sets the position 35mm hinge cups with a 5mm boring distance.
Tom
ok, actually 22.5 from the center of the jig, about 13 from the front.
Okay! Here's version 5... (we're NOT going to talk about version 4).
I made the following changes:
- vacuum tube increased 50% in diameter
- strength fillet and spline added to the tube
- alignment detents (notches?) added to mimic those on the OEM base
- added the raised platforms that go under the fence bars (not sure why those are there TBH)
- angle of vacuum tube changed to 40 degrees to match the hose attachment and less interference with the chip collection
- various round over fillets for refinement
Demo video below.
Let me know if you think I should try for stronger suction.
IMPORTANT SAFETY NOTE: you may notice in the video that my right middle finger is heavily bandaged. Shortly after filming that previous video (above), I decided to remove the drill from the MB 40 while leaving the centrotec drill bit in place. They are VERY sharp. While doing that, the MB 40 started to fall over, and I instinctively grabbed at it to catch it (I used to work the juice at the grocery store in college... you catch it, or you clean it!). So that very sharp bit managed to slice the end of my finger rather deeply. Took awhile for the bleeding to stop. SO please think about the order of assembly!
I made the following changes:
- vacuum tube increased 50% in diameter
- strength fillet and spline added to the tube
- alignment detents (notches?) added to mimic those on the OEM base
- added the raised platforms that go under the fence bars (not sure why those are there TBH)
- angle of vacuum tube changed to 40 degrees to match the hose attachment and less interference with the chip collection
- various round over fillets for refinement
Demo video below.
Let me know if you think I should try for stronger suction.
IMPORTANT SAFETY NOTE: you may notice in the video that my right middle finger is heavily bandaged. Shortly after filming that previous video (above), I decided to remove the drill from the MB 40 while leaving the centrotec drill bit in place. They are VERY sharp. While doing that, the MB 40 started to fall over, and I instinctively grabbed at it to catch it (I used to work the juice at the grocery store in college... you catch it, or you clean it!). So that very sharp bit managed to slice the end of my finger rather deeply. Took awhile for the bleeding to stop. SO please think about the order of assembly!
MacBoy
Member
Glad you’ve got healing powers : - )
Funny how you instinctively grabbed the older model of the CXS, then realized it does not have the FastFix.
Your sub-base does a great job of the suction and the dust collection!
Funny how you instinctively grabbed the older model of the CXS, then realized it does not have the FastFix.
Your sub-base does a great job of the suction and the dust collection!
Dawgwalker
Member
- Joined
- Apr 8, 2012
- Messages
- 6
How much for the .stl file so I can print it on my Bambu printer?
Still working out how to distribute it, will get back to you soon.
Quick update, I've been busy on other things including caregiving for my mother after back surgery, but.....
I recently got around to printing gaskets in TPU on my printer, and it works great. So I'm going to play around with modeling a custom one piece gasket for the MB-40 vacuum base and see if it's any better.
I recently got around to printing gaskets in TPU on my printer, and it works great. So I'm going to play around with modeling a custom one piece gasket for the MB-40 vacuum base and see if it's any better.
First iteration of custom 3D printed gaskets. They work great! Tweaking profile now to make the surface side flat for better material contact.
SUNLU TPU 95A, 2 wall,30% infill.
SUNLU TPU 95A, 2 wall,30% infill.
luvmytoolz
Member
Brilliant job! Looks great!
Cheese
Member
The printed gasket thing is pretty interesting...
...how pliable is the finished product?
The printed gasket thing is pretty interesting...
It doesn't compress as much as expected but very flexible. I may also play around with lower shore hardness ratings (there is a limit to how low my printer can go, IIRC 80A but need to double check that).
Overall I think having it stiff/tough is good for this application, as long as it holds the seal.
Cheese
Member
That's real slick...maybe the days of cutting o'rings with a razor blade and then bonding them back together with cyanoacrylate are behind us.
So what I've learned this week about 3D printing capabilities, flexible gasket/seal materials, stainless steel & titanium.
Oh, it is amazing the stuff that a small shop can do now! I've been wanting to redesign my guitar articulated neck joint to be 3D printed. If the FDM plastics can't handle the forces required, I can always send it off to PCBWay for laser sintering in metal! And you can do that for small production numbers!That's real slick...maybe the days of cutting o'rings with a razor blade and then bonding them back together with cyanoacrylate are behind us.
So what I've learned this week about 3D printing capabilities, flexible gasket/seal materials, stainless steel & titanium.
luvmytoolz
Member
Laser sintering is seriously cool!
I saw a demo of one years back at a trade show and it blew my mind!
