Ripstik: slowly and steadily coming together!
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEib-Ae6HIGZMdJFJQMi9p5WFq07v0HQAIyXCe6cBU37VJvM5eK5wTormHMBbhemxMC_L2_Z-U9WWnjuEWNZTkjlfZRF-p1LSTLhdfJ_OgSAIfSit1n5Hiv6z48qBtDUnw3dts7VJFgYq-ws/s1600/backchassis.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhH0Xcqqb6Jwi06JGk_ywQ49WGHavTZNybtP0eLvBKBg5aXtHLLbtXWlnfpSUYqTeIL3Jbuwo66rQn-vkWuX-Mqvcb4PcIVeEZxszafUUFP7B7RFwcpNTL-RqVEUIYldz6SSddsJZy9uA5Z/s1600/frontchassis.jpg)
The shiny blue shim steel I'm using for the top plates (aesthetic purposes) is really thin (0.03"), so it was sandwiched between sacrificial plywood and 1/8" 6061 aluminum to make sure it didn't warp while waterjetting,
In addition to that, I'm milling angles on my tube cutouts so that they properly attach to the bent chassis.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYNfyycCE5L4_awmoGjwxdHQoxopwC4DTT8vkAJyBqHG_Pw2BWTiFeDnxJXcRD3rChdiNykgFjrszoAj81SY7KYMTdmMl-CmPcgZn5HVK0zh2UwB9Ag2ygEXAJrsCTighvsOTKLwAdU5C3/s1600/20150125_223150.jpg)
The top plates will attach to the chassis with nutstrips, pieces of 0.5" square extrusion with 1/4-20 tapped holes every inch. Marking and powertapping all these holes took a while.
Here I'm testing a quick caster-lock idea. A caster consists of an upper half and a lower half, with a common pivot shaft (1). If I have a slab that can slide through slots in both halves, I can lock and unlock the caster.
Once convinced that my lock idea would pan out, I proceeded to make all the parts.
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Milling the angle blocks to 21.5°. These blocks connect the caster assemblies to the chassis. |
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kingpin/bearing assembly |
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freshly-waterjetted caster parts |
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