Commit 1a42900f authored by Jake Read's avatar Jake Read

add tape chain, and refresh notes

parent 7af097c8
...@@ -44,4 +44,10 @@ Make sure to change 'type' to .step, and check the 'save to my computer' box. No ...@@ -44,4 +44,10 @@ Make sure to change 'type' to .step, and check the 'save to my computer' box. No
![n17pp](n17_linearPulley/n17pulley.jpg) ![n17pp](n17_linearPulley/n17pulley.jpg)
### [N23 Linear and Pinion-Type Belt](n23_linearPinion/) ### [N23 Linear and Pinion-Type Belt](n23_linearPinion/)
![n23lp](n23_linearPinion/RCTN23-alu-img.jpg) ![n23lp](n23_linearPinion/RCTN23-alu-img.jpg)
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## Bonus Kit
### [E Chain with Tape Measure Backbone](tapeChains/)
![tc](tapeChains/tapeChains-2.jpg)
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...@@ -11,6 +11,7 @@ Smaller Gantries. Uses 45* bearings in 3DP blocks, with one set riding on flexur ...@@ -11,6 +11,7 @@ Smaller Gantries. Uses 45* bearings in 3DP blocks, with one set riding on flexur
### Development Notes ... ### Development Notes ...
- while heat-setting M4 inserts in for the rollers, (1) there isn't *really* enough space to get the soldering iron in (without melting the adjacent pla) and (2) it's difficult to guarantee these go in straight. maybe use a press-in insert? / a hex nut ? - while heat-setting M4 inserts in for the rollers, (1) there isn't *really* enough space to get the soldering iron in (without melting the adjacent pla) and (2) it's difficult to guarantee these go in straight. maybe use a press-in insert? / a hex nut ?
- long runs (beams) are not stiff ... try 1/8" waterjet stiffening folded members - long runs (beams) are not stiff ... try 1/8" waterjet stiffening folded members
- in the fullness of time, add an N23 size for torque-y applications like the CAT's bed: this is minimal overhead.
### BOM for N17 ### BOM for N17
...@@ -34,4 +35,5 @@ M4 Washers | - | 4 | ibid | McMaster | 93475A230 ...@@ -34,4 +35,5 @@ M4 Washers | - | 4 | ibid | McMaster | 93475A230
### Materials for N17 ### Materials for N17
1/4" Acrylic from McMaster, for 12x24" for small lasers pick 8505K755 1/4" Acrylic from McMaster, for 12x24" for small lasers pick 8505K755
\ No newline at end of file 1/4" ALU 6061 Typical (6.35mm)
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## Gantry for NEMA17 Motor, 0.25" Stock, Pinion-Type Belt ## Gantry for NEMA17 Motor, 0.25" Stock, Pinion-Type Belt
**STATUS:** mistakes abound, works but assembly and belt-tensioning are not wonderful. **STATUS:** mistakes abound, works but assembly and belt-tensioning are not wonderful. CAD model and actual typical assembly do not reflect one another.
**USED IN:** [Little Rascal](http://gitlab.cba.mit.edu/jakeread/littlerascal) **USED IN:** [Little Rascal](http://gitlab.cba.mit.edu/jakeread/littlerascal)
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## HQ Wire Bundling ## HQ Wire Bundling
Cable Routing is the ad-hoc machine builder's 'come to jesus' moment, every time. Here is a project that aims to help ye faithful straighten out.
Original credit to [the unlinked hero in this Hackaday article](https://hackaday.com/2017/12/17/diy-cable-chain-looks-great-stays-cheap/)
Trying this with Heat Shrinks Trying this with Heat Shrinks
- -> 1" 3M161381-ND - -> 1" 3M161381-ND
- -> 0.75" 3M161354-ND - -> 0.75" 3M161354-ND
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