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Hi All- I think Milli will need a chip compactor as well. Peter

https://youtu.be/5z0YCTkhhss

Hi Craig - Its only for the Z axis which is a 550mm long screw so 16mm is fine. Peter

Hi Rod - I don't think 30mm is too big for a 2.6x1.8m bed machine. Initially it was only for the Z axis rails, but by the time you add spacers (which I dislike, extra things means extra compliance)...

Hi All - I have been looking at the stack height of rail and cars vs ballscrews and std nut housings. Only one is equal which is using a 30mm rail/car and a16mm ballscrew. The next build will use...

Hi Max - Good video - consider it practice for when you cast your next machine! :) Use lots of wax on the mould... Peter

Hi Max - You seem to be fixated on a slab for some reason. Buy damped machine feet and that's money well spent. This slab/plinth thing is going in the wrong direction? If its a test case for machine...

Hi TKMS _ Ops thks for the correction. Peter

Hi - I agree a timber plinth is all that's needed. Audiophiles place their turntables on timber plinths and they swear by it. Peter

https://youtu.be/ENkpMNQW0Uo

Hi Max - If you have a steel frame inside the slab you have neutered the whole idea of using the slab as a damper. The load will stay in the steel as steel is 200GPa and your grout is 30GPa. So you...

Hi Craig -There are 3 Scoots in the wild. Scoot is production ready. How many would you like? I'd like to sell 1 every month that would give me confidence to start moulding/casting parts vs...

Hi Nord - In one thread I've done extensive vibration analysis on construction extrusions. What came out is this:
1) Hollow sections suffer from acoustic noises as they are organ pipes. These noises...

Hi Max - Be careful using traditional steel reinforcement. I would not use steel in it at all... If it is connected to the frame in such a way that it is in the loadpath then you defeat the purpose...

Hi TKMS - sorry you're using a compression bit which means the chip is being pushed down the hole so the chip thickness has to be small to stop the bit from choking. So a 1/8" tool from amana says...

Hi Max - Re reading your #1 I think you are conceptualising "vibration absorption" incorrectly. If you want to "absorb" vibrations at the contact between the machine and its base then you need to use...

Hi Nordic - Expanding PU foam from the hardware will do the same thing, easier and cheaper.... Peter

Hi Craig - I have nothing against 2nd hand parts. But when I design a machine its designed for production. Which means the supplier has to be able to supply one or 100 parts, prefer 1000 parts. If...

Hi Max - The top of the cabinet as you describe it, although it could vibrate it probably won't. It is also not in the critical path so even if it did vibrate it would not affect the tool very much...

If you want to work in inches then its Fz= feed in/min / rpm / N N=no of teeth so a 0.1mm Fz = 0.004in so an example 40in/min/12000/2= 0.0017" so this is too thin a chip... If the chip is too...

OK - so CL= Feed/ (RPMx No teeth) so 1016/24000/2=0.021mm per bite as the tool moves. That's a very fine cut so your either making lots of dust or if your machine is not rigid enough its rubbing...

Hi Pippin - In my design the Z axis rails are attached to the z axis plate. The Z motor is attached to the Z plate as well. In this machine I'm moving from an I beam Z axis to a tube. Initial FE says...

Hi - How many teeth? and what are you cutting? plywood, hard timber? Peter

Hi TKMS - what chipload do you run at? If you do not know about feed per tooth (Fz) then you need to look that up. If your Fz is too big then your overloading the tool and hence will choke the tool...

Hi Jerry - They are beautiful things. Peter

Thanks for that info Craig. I'll put in an enquiry for a HSK25 to see if they have it. Its my first ATC machine so a few unknowns to known to do....Peter

Hi Thomas - I expect 40x40x800 to be a good size. Peter

Hi Thomas - I can't see how you cannot have air in the mix when the mix is mixed mechanically. So I think your stuck with it. I have made tooling board from microshpheres that are used in cosmetics...

Hi Thomas - I think the process is backwards. If you understand vacuum processes I'd do it this way. 1) dry stack the mould and the mould needs to be vacuum tight or you need to put a vacuum bag...

Hi Thomas - How are you going to pressurise the sample to 8bar? do you have an autoclave? 8 bar is 80 tonne per sqm.. or do you have a big pressure pot? or a big steel tube I suppose.... I don't...

Hi Craig - I'm looking for an ISO20 ATC spindle for big router project I'm collaborating with... Nearly finished its concept Z axis assembly, then onto the saddle/gantry.... Customer wants the most...

Hi Craig - I've always had good service from stepperonline. Their servos have tuning software and they answer my questions. In for a penny in for a pound. May as well have 4 to play with then 1.... ...