TD Pilot
TD Navio
The TD Navio AAC system involves an iPad 10 in a rugged case. The folks at Tobii-Dynavox have chosen a case with a very complex profile:
It has a “stepped” edge around the case opening, and an unusually large drop (on three sides) from the edge of the case down to the glass of the tablet. Additionally, there is a narrow space between the edge of the case opening and the start of the active area of the screen and a tight fit beween the case and the glass.
These characteristics cause difficulties in creating a good keyguard design. Rather than listing all the approaches that “won’t” work, we’ve chosen the following approach as a reasonable compromise.
The keyguard pictured above has sloped edges and a lip that reaches to the edge of the case on the left, right, and bottom. The keyguard is held to the case using mini clips and elastic straps. Because the distance from the face of the case is raised up so far from the glass of the screen, keyguard itself must be fairly thick and to counter that, the screen area of the keyguard is recessed.
Note that the keyguard shown supports the TD Snap MP 30 layout but the information suplied below will support any app and any layout.
The keyguard should be printed face-up and will require a significant amount of support material to reliably print.
Enter the following information into the Customizer pane:
"---- Keyguard Basics ----"
keyguard_thickness = 9
screen_area_thickness = 5
"---- Tablet ----"
type_of_tablet = "iPad 10th generation"
"---- Tablet Case ----"
width_of_opening_in_case = 239
case_opening_corner_radius = 10
case_height = 200
case_width = 282
case_to_screen_depth = 7
"---- Mounting Method ----"
mounting_method = "Clip-on Straps"
"---- Sloped Keyguard Edge Info ----"
add_sloped_keyguard_edge = "yes"
sloped_edge_width = 9
extend_lip_to_edge_of_case = "yes"
"---- Special Actions and Settings ----"
keyguard_edge_chamfer = 0.5
Enter these instructions into the openings_and_additions.txt file:
case_additions=[
// ID, x, y, width, height, shape, thickness, trim above, trim below, trim to right, trim to left, corner radius
[ 1, cow/2, coh+sew, c_w, 20, "-r1", 0, -999, -999, -999, -999, 0],
[ 2, cow+(c_w-cow)/2, coh+sew, 0, 0, "-oa1", 0, -999, -999, -999, -999, c_cr],
[ 3, -(c_w-cow)/2, coh+sew, 0, 0, "-oa4", 0, -999, -999, -999, -999, c_cr],
];
Thanks to SWAAAC for lending us this device, which enabled us to obtain these measurements and test them.
TD I-13
The Tobii-Dynavox Series I-13 is a large AAC device with a protective surround that covers very little of the tablet screen. The exposed screen is over 300 mm wide, so typical, full-size keyguard will need to be printed on a very large printer or it will need to be split and may still need to be printed on a large printer. The keyguard above was printed on a Prusa XL with a 360 mm wide print surface.
Like the Series I-16, Tobii-Dynavox sells an inexpensive keyguard holder for the I-13. We recommend purchasing one of these holders and 3D-printing a keyguard that will fit in the holder.
Keyguard for the Official Keyguard Holder
< coming soon >
Full-Size Keyguard
You may need to find a convenient place to split the keyguard before printing depending on the size of your printer. It may help to hide the status bar.
Enter the following information into the Customizer pane:
"---- Tablet ----"
type_of_tablet = "TobiiDynavox I-13"
"---- Tablet Case ----"
have_a_case = "no"
Enter these instructions into the openings_and_additions.txt file:
cut_x = 14.5+35;
cut_w = 40;
cut_y = 26+sh*mpp+11;
tablet_openings=[
// ID, x, y, width, height, shape, top slope, bottom slope, left slope, right slope, corner radius, other
[ 1, cut_x, cut_y, cut_w, 8, "crr", 90, 90, 90, 90, 5, ],
];
Thanks to SWAAAC for lending us this device, which enabled us to obtain these measurements and test them.
TD I-16
The TobiiDynavox I-16 series AAC device is a very large tablet. It is over 370 mm wide, larger than almost all 3D printers. Even so, you have several options to choose from when creating a 3D-printed keyguard.
We believe that your best option is to purchase the $20 keyguard holder from TobiiDynavox. It’s relatively inexpensive and results in a significantly smaller keyguard, though it will still require you to have a large printer that is at least 350 mm wide. In a pinch, you could split this keyguard and print it on a smaller printer.
You have two other options. The first is to design a full-sized keyguard but split it. The app’s layout will determine how easy it is to split the keyguard. The second is to design a smaller keyguard that fits into a split frame. Finding a good place to split a frame is generally easier than a keyguard.
All of these options are shown in the picture below:
Note that the picture shows keyguards with arbitrary app layouts. You will need to provide the designer with all the information necessary to match the layout of your AAC app. The instructions below don’t provide any information for the app layout.
Keyguard for the Official Keyguard Holder
Enter the following information into the Customizer pane:
"---- Keyguard Basics ----" keyguard_thickness = 5 screen_area_thickness = 5 "---- Tablet ----" type_of_tablet = "TobiiDynavox I-16" "---- Tablet Case ----" height_of_opening_in_case = 200 width_of_opening_in_case = 350
Enter these instructions into the openings_and_additions.txt file:
case_openings=[
// ID, x, y, width, height, shape, top slope, bottom slope, left slope, right slope, corner radius, other
[ 1, 88+23/2, coh, 23, 7.2, "crr", 90, 90, 90, 90, 1, 2.5],
[ 2, cow-(88+23/2), coh, 23, 7.2, "crr", 90, 90, 90, 90, 1, 2.5],
[ 3, cow/2-17/2+.8, coh+4, 0, 0, "oa1", 90, 90, 90, 90, 3, ],
[ 4, cow/2+17/2-.8, coh+4, 0, 0, "oa4", 90, 90, 90, 90, 3, ],
];
case_additions=[
// ID, x, y, width, height, shape, thickness, trim above, trim below, trim to right, trim to left, corner radius
[ 1, cow/2, 0, 27, 4, "rr3", 2.5, -999, -999, -999, -999, 1.5],
[ 2, 12+27/2, 0, 27, 4, "rr3", 2.5, -999, -999, -999, -999, 1.5],
[ 3, cow-(12+27/2), 0, 27, 4, "rr3", 2.5, -999, -999, -999, -999, 1.5],
[ 4, cow/2, coh, 60, 4, "rr1", 0, -999, -999, -999, -999, 3.5],
[ 5, cow/2, coh, 60, 4, "-rr1", 3, -999, -999, -999, -999, 3.5],
[ 6, cow/2, coh+5, 0, 18, "-c", 0, -999, -999, -999, -999, 3.5],
];
Note that the keyguard will need support under the two small tabs at the top during printing. Remove the supports when printing completes.
Full-Size Keyguard
You will need to find a convenient place to split the keyguard before printing.
Enter the following information into the Customizer pane:
"---- Tablet ----" type_of_tablet = "TobiiDynavox I-16" "---- Tablet Case ----" have_a_case = "no" height_of_opening_in_case = 239 width_of_opening_in_case = 378 case_opening_corner_radius = 11
Keyguard and Frame
We include information about the location of the split in the frame, but you can place the split in a different location to better match the size of your printer.
Enter the following information into the Customizer pane:
"---- Tablet ----" type_of_tablet = "TobiiDynavox I-16" "---- Tablet Case ----" have_a_case = "no" "---- Keyguard Frame Info ----" have_a_keyguard_frame = "yes" keyguard_frame_thickness = 4 keyguard_height = 198 keyguard_width = 345 "---- Special Actions and Settings ----" split_line_location = 20 split_line_type = "dovetails" dovetail_width = 4.5 slide_dovetails = -0.6