Standing Workbench Design

Lisa asked for a workbench in the craft’s room.  She wanted one that could raise/lower as she might want to work standing up or sitting down depending on what she wanted to do.  So.. what activities will she be doing on this workbench?

Requirements:

  1. How much weight will this surface weight and have on it? (Max Load)

Activities:

  1. Sewing
  2. Cutting materials
  3. Cutting with a razor on the surface

Things this will have to do

BOM and Money Spent on this Project

  • Linear Actuator
    • 24″ 600 lbs (here)

References

  • Lift Actuator System here
  • Lift Desk here

Mind – mind.com new social media that is open source

A large community of content developers on youtube.com are moving their communities to mind.com.  Why?  Because youtube is demonetizing their videos because they don’t like what they are saying.  Or they are going against the grain.  This is not free speech and should be fought with a boycott.

Go checkout Minds and see what you think.

Blogs Posts of Interest:

  • Edward Snowden shows you how to make your phone go black (link)
  • Jill Stein vows to pardon Edward Snowden and put him on her cabinet (link)
  • Devolution of the Internet (link)
  • Open Source Ecology is Crowdfunding Affordable Eco Friendly Housing (link)
  • Game-changing aeroponic farm of the future uses 95^ less water, needs no soil. (link)
  • How to Build a Self Watering Garden (link)
  • Bionic Leaf can turn sunlight and water into free, liquid fuel 10x faster than plants (link)
  • Scientists are turning CO2 into solid rock (link)
  • This is the most insane, close-up footage of a tornado you have ever seen (link)
  • Deep Network Connections, Ecology of Ideas (link)
  • Scientists get the green light to resurrect the dead with stem cells (link)
  • Scientists accidentally creates a battery that can last a lifetime (link)
  • This mini turbine could power a town (link)
  • New stem cell treatment could repair any tissue in the body using fat cells (link)
  • Watch a hydraulic press attempt to fold a sheet of paper more than 7 times (link)
  • BMX biker lays some knowledge on unsuspecting cop (link)
  • 12 Steps How to Build a Cozy 1720 sqft  Powered Shipping Container Cabin with Living Roof (link)
  • Native American Council offers amnesty to 220 million undocumented whites (link)
  • Fusion energy breakthrough imminent (link)
  • This is what happens when a journalist forces a banker to actually answer a question (link)
  • Self Filling Water bottle takes moisture from the air (link)
  • What is causing these cars to levitate through the air (link)
  • Strikes on ISIS are a trap (link)
  • Putin says Russia will supply the world with organic food (link)
  • Watch a child be created in these stunning photographs from inside the womb (link)
  • Ray Kurzweil is tryin gto live forever, 77 supplements he takes daily (link)
  • Plans for solar concentrator are released to the public (link)
  • Floating city can let people live off g rid and almost anywhere in the world (link)
  • Ninja Snorklin (link)
  • Sci Hub – journal indexing system (link)

Subnet Mask Cheat Sheet

Subnet Mask Cheat Sheet

See also RFC 1878.  (Pulled from the following page)

Addresses Hosts Netmask Amount of a Class C
/30 4 2 255.255.255.252 1/64
/29 8 6 255.255.255.248 1/32
/28 16 14 255.255.255.240 1/16
/27 32 30 255.255.255.224 1/8
/26 64 62 255.255.255.192 1/4
/25 128 126 255.255.255.128 1/2
/24 256 254 255.255.255.0 1
/23 512 510 255.255.254.0 2
/22 1024 1022 255.255.252.0 4
/21 2048 2046 255.255.248.0 8
/20 4096 4094 255.255.240.0 16
/19 8192 8190 255.255.224.0 32
/18 16384 16382 255.255.192.0 64
/17 32768 32766 255.255.128.0 128
/16 65536 65534 255.255.0.0 256

Guide to sub-class C blocks

/25 — 2 Subnets — 126 Hosts/Subnet

Network # IP Range Broadcast
.0 .1-.126 .127
.128 .129-.254 .255

/30 — 64 Subnets — 2 Hosts/Subnet

Network # IP Range Broadcast
.0 .1-.2 .3
.4 .5-.6 .7
.8 .9-.10 .11
.12 .13-.14 .15
.16 .17-.18 .19
.20 .21-.22 .23
.24 .25-.26 .27
.28 .29-.30 .31
.32 .33-.34 .35
.36 .37-.38 .39
.40 .41-.42 .43
.44 .45-.46 .47
.48 .49-.50 .51
.52 .53-.54 .55
.56 .57-.58 .59
.60 .61-.62 .63
.64 .65-.66 .67
.68 .69-.70 .71
.72 .73-.74 .75
.76 .77-.78 .79
.80 .81-.82 .83
.84 .85-.86 .87
.88 .89-.90 .91
.92 .93-.94 .95
.96 .97-.98 .99
.100 .101-.102 .103
.104 .105-.106 .107
.108 .109-.110 .111
.112 .113-.114 .115
.116 .117-.118 .119
.120 .121-.122 .123
.124 .125-.126 .127
.128 .129-.130 .131
.132 .133-.134 .135
.136 .137-.138 .139
.140 .141-.142 .143
.144 .145-.146 .147
.148 .149-.150 .151
.152 .153-.154 .155
.156 .157-.158 .159
.160 .161-.162 .163
.164 .165-.166 .167
.168 .169-.170 .171
.172 .173-.174 .175
.176 .177-.178 .179
.180 .181-.182 .183
.184 .185-.186 .187
.188 .189-.190 .191
.192 .193-.194 .195
.196 .197-.198 .199
.200 .201-.202 .203
.204 .205-.206 .207
.208 .209-.210 .211
.212 .213-.214 .215
.216 .217-.218 .219
.220 .221-.222 .223
.224 .225-.226 .227
.228 .229-.230 .231
.232 .233-.234 .235
.236 .237-.238 .239
.240 .241-.242 .243
.244 .245-.246 .247
.248 .249-.250 .251
.252 .253-.254 .255

/26 — 4 Subnets — 62 Hosts/Subnet

Network # IP Range Broadcast
.0 .1-.62 .63
.64 .65-.126 .127
.128 .129-.190 .191
.192 .193-.254 .255

/27 — 8 Subnets — 30 Hosts/Subnet

Network # IP Range Broadcast
.0 .1-.30 .31
.32 .33-.62 .63
.64 .65-.94 .95
.96 .97-.126 .127
.128 .129-.158 .159
.160 .161-.190 .191
.192 .193-.222 .223
.224 .225-.254 .255

/28 — 16 Subnets — 14 Hosts/Subnet

Network # IP Range Broadcast
.0 .1-.14 .15
.16 .17-.30 .31
.32 .33-.46 .47
.48 .49-.62 .63
.64 .65-.78 .79
.80 .81-.94 .95
.96 .97-.110 .111
.112 .113-.126 .127
.128 .129-.142 .143
.144 .145-.158 .159
.160 .161-.174 .175
.176 .177-.190 .191
.192 .193-.206 .207
.208 .209-.222 .223
.224 .225-.238 .239
.240 .241-.254 .255

/29 — 32 Subnets — 6 Hosts/Subnet

Network # IP Range Broadcast
.0 .1-.6 .7
.8 .9-.14 .15
.16 .17-.22 .23
.24 .25-.30 .31
.32 .33-.38 .39
.40 .41-.46 .47
.48 .49-.54 .55
.56 .57-.62 .63
.64 .65-.70 .71
.72 .73-.78 .79
.80 .81-.86 .87
.88 .89-.94 .95
.96 .97-.102 .103
.104 .105-.110 .111
.112 .113-.118 .119
.120 .121-.126 .127
.128 .129-.134 .135
.136 .137-.142 .143
.144 .145-.150 .151
.152 .153-.158 .159
.160 .161-.166 .167
.168 .169-.174 .175
.176 .177-.182 .183
.184 .185-.190 .191
.192 .193-.198 .199
.200 .201-.206 .207
.208 .209-.214 .215
.216 .217-.222 .223
.224 .225-.230 .231
.232 .233-.238 .239
.240 .241-.246 .247
.248 .249-.254 .255