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fix anchor link

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ohsqueezy 2023-04-25 18:59:36 -04:00
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doc/Scrapeboard_builder's_manual.md
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@ -101,7 +101,7 @@ Supplies
### Optional
If access to a router is available, a more compact version of the platform with a smooth, flush surface can be created. It will require creating insets for the metal panels, inner screws, brackets, and wires using the router. To create this version, make the following supply substitutions, and follow the steps marked optional in [Building a Scrapeboard and platform](#Building-a-Scrapeboard-and-platform).
If access to a router is available, a more compact version of the platform with a smooth, flush surface can be created. It will require creating insets for the metal panels, inner screws, brackets, and wires using the router. To create this version, make the following supply substitutions, and follow the steps marked optional in [Building a Scrapeboard and platform](Scrapeboard_builder's_manual.md#Building-a-Scrapeboard-and-platform).
* Replace plywood with smaller, square pieces: 4 × [plywood](https://www.homedepot.com/p/203504324) pre-cut to 14x14x3/4" each (oak or birch hardwood recommended)
* Replace metal sheets with [4 × 18-gauge, 12x12" metal sheets](https://www.amazon.com/dp/B09RZMTZBG)
@ -433,10 +433,9 @@ The platform consists of four metal plates, usually mounted to wood, that must b
This manual describes how to use four pieces of plywood as the base for the metal plates. However, it is not necessary to use any specific base, as long as the metal plates are spaced correctly, don't move, and allow the round metal pads on the scrapeboard to scrape over them. The metal could be fastened directly to the floor or a single piece of plywood if the platform doesn't need to be portable.
![Underside routing](img/underside_routing.jpg)
An optional compact and flush version of the platform can be built with smaller metal plates by carving channels for the plates, brackets, inner screws, and wiring using a router. These channels can help with durability and portability and will make the surface smooth and flush, but they are not necessary for creating a working platform. Steps for doing this are included, but they are marked as optional.
An optional, compact and flush version of the platform, mentioned earlier in [history](#history) and [supplies](#supplies),
can be built with smaller metal plates by carving channels for the plates, brackets, inner screws, and wiring using a router. These channels can help with durability and portability and will make the surface smooth and flush, but they are not necessary for creating a working platform. Steps for doing this are included, but they are marked as optional.
![Underside routing](img/underside_routing.jpg)
The electronics are assumed to be installed in front of the platform, near where the screen is. If installing the electronics behind the platform, adjust wire lengths and wire channel orientations.
@ -463,7 +462,7 @@ The platform for a standard Scrapeboard build consists of four evenly spaced met
First, measure an outline for the metal, making sure to keep the correct amount of space between the metal plates, close enough together that diagonal moves will register but far enough apart that a single round metal pad on the scrapeboard won't be able to touch two plates simultaneously. Since the round metal pads for the scrapeboard are just under 4" in diameter, the metal plates should be around 4" apart. This can be adjusted if the round metal pads are slightly different in diameter.
1. For each of the wood pieces, measure 2" inward from the two inner edges, going along each edge, marking off 2".
1. For each of the panels, measure 2" inward from the two inner edges, going along each edge, marking off 2".
2. Draw a line parallel to the edge of the wood piece on each of the two inner edges. These lines mark where the metal plate should be attached.
#### Inset (optional)
@ -473,7 +472,7 @@ First, measure an outline for the metal, making sure to keep the correct amount
In order to get the metal plates flush with the platform, it is necessary to remove a thin layer of wood from where the metal will be attached. A router can be used to cut away a thin layer from all parts of the wood other than the cross section between the metal plates (everything other than the 2" previously measured on each piece).
1. Insert a 3/4" diameter straight bit into the router.
2. Adjust the router depth to match the thickness of the metal, so the surface of the metal will be flush with the wood. If using 18-gauge metal plates, for example, set the router depth to 1/16". This is done to ensure the edges of the metal won't get caught on the scrapeboard and pried from the wood.
2. Adjust the router depth to match the thickness of the metal, so the surface of the metal will be flush with the wood. For example, if using 18-gauge metal plates, set the router depth to 1/16". This is done to ensure the edges of the metal won't get caught on the scrapeboard and pried from the wood.
3. On each panel, route two straight channels into the wood, one along each inside part of the lines previously drawn where the metal will be set. Use a router edge guide if possible to make a straight cut.
4. Use the router to remove the rest of the wood between the channels and the edge of the wood, leaving only the cross section. In the end, there should be a recess the metal plate can be placed into on each panel.
@ -505,7 +504,7 @@ For the screws along the edge of the platform, each screw will need its own rout
![Stripped wire endings](img/stripped_wire_endings.jpg)
There will be four wires total, one for each metal plate. They should be cut long enough to reach the Arduino or Raspberry Pi. To have them all terminate at the same point, the back two wood pieces should have longer wires than the front two.
There will be four wires total, one for each metal plate. They should be cut long enough to reach the Arduino or Raspberry Pi. To have them all terminate at the same point, the back two panels should have longer wires than the front two.
1. Measure the distances between the Arduino or Raspberry Pi and each metal plate. This will vary depending on the setup, and it is a good idea to measure extra distance.
2. Cut wire at the measured distance for each plate.
@ -532,9 +531,9 @@ Each screw head should be flush with the metal, leaving the surface of the metal
#### Brackets
The brackets should be attached to the underside of the platform. They are necessary for holding the pieces together. With 8 - 12 evenly spaced brackets, the pieces will hold together firmly. The brackets may be inset into the wood using a router. If using the clasp style brackets, the insetting is necessary. Ordinary flat brackets can be either inset or not.
The brackets should be attached to the underside of the platform. They are necessary for holding the panels together. With 8 - 12 evenly spaced brackets, the panels will hold together firmly. The brackets may be inset into the wood using a router. If using the clasp style brackets, the insetting is necessary. Ordinary flat brackets can be either inset or not.
1. Flip the platform on its backside, with all four pieces arranged in their proper orientations.
1. Flip the platform on its backside, with all four panels arranged in their proper orientations.
2. Along the cross section seam, place the brackets so they are evenly spaced, covering as much area as possible, without getting too close to the edge or the center.
3. *(if routing)* Trace around the bracket to mark where to route the wood. If using the clasp style brackets, leave some extra room in the outline.
4. *(if routing)* Use the router to carve a channel in the shape of the bracket. The router depth should be set to the thickness of the bracket. If using the clasp style latches from the supply list, the router depth will be 3/8". After routing, put the brackets back in place.
@ -544,7 +543,7 @@ The brackets should be attached to the underside of the platform. They are neces
#### Non-slip padding (optional)
The non-slip padding is necessary on many surfaces to keep the platform from slipping. If the platform is placed on a very non-slippery surface like carpet, it may not be necessary. The non-slip padding can be attached to the underside of the wood pieces or it can be placed on the floor between the platform and floor.
The non-slip padding is necessary on many surfaces to keep the platform from slipping. If the platform is placed on a very non-slippery surface like carpet, it may not be necessary. The non-slip padding can be attached to the underside of the panels or it can be placed on the floor between the platform and floor.
1. On each panel's underside, measure areas for non-slip padding to attach. If there are channels from routing, either measure around the channels or include them in the measurement and cut off the non-slip padding over the channels after attaching it. Depending on how the padding is going to be applied and the size of the non-slip padding material, this may mean making multiple measurements or one big measurement. Either way, measure so the padding covers as much area as possible while allowing the panel to rest as flat as possible on the ground.
2. Cut the non-slip padding material into the shapes measured.
@ -587,8 +586,6 @@ The metal pads are attached on the underside of the skatedeck, slightly closer t
#### Connect
![Complete platform and board](img/complete_platform_and_board.jpg)
The board and entire build should now be complete. Try placing the board on two metal pads. The lizard should appear on the screen.
[SDL mixer]: https://github.com/libsdl-org/SDL_mixer/releases