Merge branch 'master' of https://github.com/osiweb/unified_retro_keyboard.wiki into master
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Home.md
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Home.md
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@ -4,3 +4,4 @@ Welcome to the **Unified Retro Keyboard Project** wiki!
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This wiki will collect technical notes, assembly and configuration guides, tips and more.
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[Classic Keyboard build guide](keyboard-build)
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@ -5,33 +5,32 @@ I recommend installing the diodes and resistors at ALL switch positions. Doing
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1. The keyboard is too big for most PCB holders. To keep the components flat as
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you insert them, I suggest taping the keyboard PCB to the edge of your bench,
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and install two rows at a time.
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<img alt="Secure the PCB with space for the leads" src="images/Tape_to_table.jpg" height=50% width=50%>
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[[images/Tape_to_table.jpg]]
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1. Using a lead-bender will help speed up the process and can help produce a
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neater result. However, neatness is not critical, as the diodes will be
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mostly hidden.
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<img alt="Lead bending tool" src="images/bend_leads.jpg" height=50% width=50%>
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[[images/bend_leads.jpg]]
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1. Check that the diodes are all facing the same (correct) direction.
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<img alt="" src="images/Install_Diodes.jpg" height=50% width=50%>
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[[images/Install_Diodes.jpg]]
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1. Once the diodes are inserted, I suggest using a piece of painters tape to
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keep then in place when you flip over the board for soldering.
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<img alt="Use Painters' tape to secure components" src="images/Tape_parts_in_place.jpg" height=50% width=50%>
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[[images/Tape_parts_in_place.jpg]]
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1. After installing the diodes, install all the through-hole resistors.
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<img alt="All parts installed" src="images/All_TH_parts_installed.jpg" height=50% width=50%>
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[[images/All_TH_parts_installed.jpg]]
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1. Finally, flip over the PCB and install the 40-pin connector on the back side
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(opposite side from the diodes and resistors).
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<img alt="Connector is opposite side fromg the through-hole components"
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src="images/Connector_on_back.jpg" height=50% width=50%>
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[[src="images/Connector_on_back.jpg]]
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1. It's important that the connector is seated flat to the PCB. To ensure a
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properly seated connector, first tack pins on opposite corners of the
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@ -39,7 +38,7 @@ I recommend installing the diodes and resistors at ALL switch positions. Doing
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onto the PCB. You will feel a small "snap" as the connector seats. Repeat for
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the other tacked pin.
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<img alt="Tack corners of connector for flush install" src="images/Install_resistors.jpg" height=50% width=50%>
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[[images/Install_resistors.jpg]]
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## Preparing the Aligner (futaba)
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@ -96,34 +95,33 @@ The keyboard is designed to accommodate PCB-mounted Cherry-MX compatible Spaceba
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<details><summary>Futaba MD4-PCS keys</summary>
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The Futaba aligner PCB includes stabilizer posts for any keys that may use a stabilizer. These posts allow the futaba keys to be used with the Cherry MX PCB-mount stabilizers.
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<img alt="Futaba stabilizer adapter posts" src="images/pre-breakaway.jpg" height=50% width=50%>
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[[images/pre-breakaway.jpg]]
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#### How to use the futaba stabilizer posts
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1. Remove both posts from the PCB. Newer revisions of the aligner board include perforations for easier break-away of the posts.
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<img alt="Break away posts from aligner" src="images/cutting_post.jpg" height=50% width=50%>
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[[images/cutting_post.jpg]]
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1. Be sure to file away any excess material from the breakaway tab.
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<img alt="Broken offfiling" src="images/futaba_posts_before_filing.jpg" height=38% width=38%> <img alt="Removed breakaway tabs" src="images/futaba_posts_breakaway_filed_off.jpg" height=38% width=38%>
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[[images/futaba_posts_before_filing.jpg]] [[images/futaba_posts_breakaway_filed_off.jpg]]
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1. File away the area marked "File to 1.5mm". The aligner includes a thickness gauge to test fitting, but manufacturing tolerances may vary, so the best test of thickness is a spare key cap. The post should require some pressure to insert into the key cap base.
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1. The post should be just under 4mm wide. The post in this example is an early revision that was specified at 4mm, and ended being a sliver too wide to fit the key cap base. It required a a little extra filing along one side to fit properly. The posts on newer revs are thinner and should not require extra filing to narrow side-to-side width.
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<img alt="Posts before and after filing" src="images/futaba_posts_before_and_after.jpg" height=50% width=50%>
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[[images/futaba_posts_before_and_after.jpg]]
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<img alt="Posts ready to install" src="images/filed_futaba_posts.jpg" height=50% width=50%>
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[[images/filed_futaba_posts.jpg]]
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1. The posts should be just tight enough to require a pair of pliers to insert. Use pliers to insert both posts fully. Use a ruler or caliper to ensure the prodruding portions of both posts are the same length.
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<img alt="Press the posts into the spacebar" src="images/futaba_posts_press_into_spacebar.jpg" height=50% width=50%>
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[[images/futaba_posts_press_into_spacebar.jpg]]
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1. Install the spacebar center mount on the spacebar key, aligning the posts so that they slide into the PCB-mounted stabilizers.
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1. Holding down the spacebar, align the arms stabilizer rod with the holes in the posts, and then snap the rod into place at the front of the stabilizer mounts.
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<img alt="Stabilizer installed" src="images/stabilizer_installed_futaba.jpg" height=50% width=50%>
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[[images/stabilizer_installed_futaba.jpg]]
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</details>
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@ -132,21 +130,21 @@ The aligner PCB includes a guide for bending the stabilizer.
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1. Start by creating a 90 degree bend about 2 cm from the end of the rod. This allows enough room to clip the end down to the correct length later.
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<img alt="First Bend" src="images/rod_first_bend.jpg" height=50% width=50%>
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[[images/rod_first_bend.jpg]]
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1. Insert the bent end into one guide hole, and, keeping the rod as flat to the board as possible, use the second guide hole to estimate the position of the second bend. Your estimate should be about 1mm short to allow for a bending radius. Once you have the pliers positioned on the rod, make your 90 degree bend.
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<img alt="Insert Rod in Guide" src="images/rod_insert_first_arm.jpg" height=50% width=50%>
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[[images/rod_insert_first_arm.jpg]]
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1. Look along the length of the rod to make sure that both "arms" are in line. If necessary, align the two arms by twisting about the axis of the axis of the rod.
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1. Test the fit of the rod by inserting it into the guide holes. Adjust as needed.
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<img alt="Test Fit" src="images/test_fit_too_long.jpg" height=50% width=50%>
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[[images/test_fit_too_long.jpg]]
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1. Clip the arms of the rod to about 11 mm.
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<img alt="Clip Arms to Length" src="images/stabilizer_rod_timmed_arms.jpg" height=50% width=50%>
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[[images/stabilizer_rod_timmed_arms.jpg]]
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</details>
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