Cartesian or CoreXY refers to the kinetics; the math behind the gantry's movement.
In a bedslinger, a Cartesian machine, the Y movements are the result of bed movements.
In ordinary CNC, also a Cartesian machine, the Y movement are the result of the gantry moving along a second axle.
In a CoreXY machine there's no X or Y stepmotors, they are often named A and B.
Pros are for example a lighter gantry; no step motors for the Y direction.
Cons for example are that the belts are rather long, that's not suitable for larger machines.
In theory, a bedslinger machine can have CoreXY kinectics for the X direction and the bed slings for the Y direction.
In a bedslinger, a Cartesian machine, the Y movements are the result of bed movements.
In ordinary CNC, also a Cartesian machine, the Y movement are the result of the gantry moving along a second axle.
In a CoreXY machine there's no X or Y stepmotors, they are often named A and B.
Pros are for example a lighter gantry; no step motors for the Y direction.
Cons for example are that the belts are rather long, that's not suitable for larger machines.
In theory, a bedslinger machine can have CoreXY kinectics for the X direction and the bed slings for the Y direction.
A little help was needed to get the membrane in between the aluminium layers in the corrugator:
I still need some help in holding the membrane stretched though.
One width for the mid membrane and one for the tweeter:
I still need some help in holding the membrane stretched though.
One width for the mid membrane and one for the tweeter:
thank ok the one i had in my head is the core XY then 🙂 they are interesting !
nice got a whole laminating line there ?
ah well still a form of laminating haha nice !! be it temporarily. great idea by the way using a second layer for baking. i remember this baking step only from the amts and back then it never worked for me but ,i clearly did something wrong !! looking forward to the results
Final assembly:
Some EPDM sealing P-strips.
Alignment helpers:
Two SMAPPPs!
Some EPDM sealing P-strips.
Alignment helpers:
Two SMAPPPs!
Nice!
What crossover frequency did you go with in the end, both on the low end and between the mid-planar and tweeter-planar?
What crossover frequency did you go with in the end, both on the low end and between the mid-planar and tweeter-planar?
The full length membrane measured the same at the short ones but SPL and distortion wise.
Sub to 120Hz @96dB/octave,
Bass 80Hz to 300Hz @96dB/octave,
Mid 300Hz to 3000Hz @ 96dB/octave,
Tweeter from 3000Hz @ 96dB/octave.
I need to raise the gain of the tweeter amplifiers so that I can compensate for the slope above 10kHz.
If I instead EQ all below 10kHz, the overall SPL will be too low.
Sub to 120Hz @96dB/octave,
Bass 80Hz to 300Hz @96dB/octave,
Mid 300Hz to 3000Hz @ 96dB/octave,
Tweeter from 3000Hz @ 96dB/octave.
I need to raise the gain of the tweeter amplifiers so that I can compensate for the slope above 10kHz.
If I instead EQ all below 10kHz, the overall SPL will be too low.