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I need a copy if anyone can provide it, the manufacturer is silent.

Any updates on this?

What are you using for the Y-drive shafts? I'd go with a 3/4" aluminum tube for torsional rigidity.

And they are an order of magnitude outside his budget.

blanchard grind will get you flat for cheap, but you cant do holes obviously.

your holes aren't round either indicating excessive backlash. I agree with torchhead something is loose or your machine isn't stiff enough.

If at all possible increase the outer dimensions of the tubing before adding epoxy granite. You can manage vibrations at a later date but if you make the structure stiff enough you may be able to...

Top and Bottom can and has been done but the height and parallelism of the beam are critical parameters. Face mounting both rails allows you to have a master rail and a slave configuration. After you...

The primary ones I know of are getting your microstep-inch ratio correct for the weights and types of work you are doing. Additionally stiffness can play a big factor if you are planning on cutting...

How does your idea compare to the Suntory Mermaid II?

You should try a diffuser on the inlet to suck the air out uniformally (laminar flow)

The diffuser I have in mind is a thin gauge sheet of steel with 1" holes cut every 4" in a 2D grid. Suspend...

There are a full range of options from plans to kit-plans to kits to ready to cut machines in all different sizes and capability ranges.

Openbuilds Ox is a good start, so is the related shapeoko...

You could convert it to some modern control systems including the motors and PC. I don't know what size motors you're looking at but mechanically adapting something new to the existing machine...

Good Catch.

I don't feel that 2 ballnuts would help much at all as a ballscrew is not intended to take any bending moment. Joining your two bottom gantry crossmembers will stiffen that up (don't mount a single x...

Dampening is great in most cases unless you make trampolines. You can tune your dampening to cancel out vibrations completely yielding a much quieter machine and less chatter. Damping is not needed...

I know this thread is kinda old but I wanted to add my engineering $.02.

Vibrations occur at an undamped natural frequency (f) in most CNC cases.
f=(sqrt(k/m))/2pi where k=stiffness in N/m and m...

Yes it would be ok to mount it like that. A single X ballscrew has worked before, you can stick with a single X ballscrew for now and implement a cable system to reduce racking while also allowing...

Dual X screws seem to be the way to go, less chance of racking. If you want to stick with a single X screw then space out your x bearing blocks further to reduce racking.

Otherwise it looks like a...

In your case yes friction can probably be ignored. Friction is a big factor when there are preloaded linear guides.

Equivalent to friction however is cutting force which obviously varies greatly...

Don't forget you value both in equipment, customers (goodwill), and knowledge will keep increasing even if your money in pocket doesn't increase.

I have a full time job I'm not too happy with and...

You might try looking up catalogs for ballscrews in PDF format, they usually have all the formulas and selection guided describing the relationship between torque, thrust, and one thing you have...

Thanks, I'll look into making a blade table, I would make this out of acrylic correct? I could probably make it in a 1.5"x1.5" grid, that being a wavy cut strip of acrylic with the top of the waves...

I'm working on a personal project and using the CO2 trotec speedy 300, the project is a Catan board game, inspired by the versions on thingverse but 95% newly designed (only used the sheep and ship...

Might I suggest stronger ventilation fans on the machines (venting to outdoors with proper pre-filters to collect dust) and somewhere for air to enter the room from?

You shouldn't need a...