Talk:Wallace Build Manual

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Feedback on the build guide.



Please, let me know what I can clear up.--MrJohn 01:27, 3 February 2012 (UTC)


Rod and Bar sizes

It might be nice to note the sizes of the smooth and threaded rods and their implications. What bar length are you using and what travel do you get?

It looks like the X-bar length determines a minimum length of X-threaded rod, and that the Z-bar length would determine the length of the Z threaded rod. Y would be more flexible since it only determine the bed length and Y travel, or maybe the foot length. DaveX 04:06, 3 February 2012 (UTC)


I am using M8 all around since I have it on hand. I expect the bar sizes to be added soon. I think an excel file or formula can be generated that starts only with the desired print area and generates all the sizes needed. I am shooting for 200mm cubed.

MrJohn 21:23, 3 February 2012 (UTC)

I was fiddling with my (edited) copy of the .scad file to do those calcs as designed, but there are some untested assumptions. -- DaveX 21:57, 3 February 2012 (UTC) :
x_bar_length = 350;
z_rod_length = 350;
y_rod_length = 1000 - x_bar_length - z_rod_length - 4;
x_base_rod_length = x_bar_length;
echo("Rod Cut Plan: ",x_bar_length, y_rod_length, z_rod_length); 


y_rod_overhang=y_rod_length/2-( motor_casing / 2 + rod_size * 2);
if(y_rod_overhang < 20) {echo("y_rod_overhang=",y_rod_overhang);}
echo("design volume x,y,z ~ :",
    x_bar_length-max(x_carriage_width,100)-2*( motor_casing / 2 + rod_size + bearing_size + 10), // - x carriage|extruder, - xEndSockets?
    y_rod_length-2*10 -  (motor_casing + rod_size * 4),  // -clamps - base
    z_rod_length-(end_height - motor_casing / 4) - (2*rod_size) -40 - max(40,75,110) - bed_mount_height - 25 // -zsocket in base, - top clamp - xaxisCarriage? - hotend - bed?
);