Orlando OTA Channels – 2018

A list of the digital over the air (OTA) channels I can pick up from the west side of Orlando.

  • 2_1 – WESH-DT (NBC)
    • 2_2 – Me TV
  • 18_1 – WKCF-DT (CW)
    • 18_2 – Justice
    • 18_3 – estrell
  • 35_1 – WOFL-DT (FOX)
    • 35_2 – Light
  • 24_1 – WUCF-DT (PBS)
    • 24_2 – Create
    • 24_3 – Kids
    • 24_4 – NHK
    • 24_5 – World
  • 45_1 – WTGL-DT (IND?)
  • 6_1 – WKMD-DT (CBS)
    • 6_2 – Cozi TV
    • 6_3 – Decades
  • 27_1 – WRDQ-DT (IND?)
    • 27_2 – Antenna
    • 27_4 – GRIT TV
  • 31_2 – WTMO-SD (Telemundo)
  • 68_1 – WEFS-HD (  far away station?)
    • 68_2 WEFS-CL
    • 68_3 WEFS-NS
    • 68_4 WEFS-FL
  • 15_1 – WDSC-HD (far away station?)
    • 15_2 – WDSC-ED
    • 15_3 – WDSC-WV
  • 9_1 – WFTV-HD ( ABC )
    • 9_2 – Laff
    • 9_3 – Escape
  • 55_1 – WACX-D1 (REL IND?)
    • 55_2 – D2
    • 55_3 – D3
    • 55_4 – D4
    • 55_5 – D5
    • 55_6 – D6
    • 55_7 – D7
    • 55_8 – D8
    • 55_9 – D9
    • 55_10 – D10
    • 55_11 – D11
  • 65_1 – WRBW-DT ( My TV)
    • 65_2 – Movies!
    • 65_3 – H&I
    • 65_4 – BUZZR
  • 52_1 – TBN HD
    • 52_2 – HILLSNG
    • 52_3 – COMBO
    • 52_4 – Enlace
    • 52_5 – Salsa

Optimizing Pokemon Go Gift Exchanges / XP from Friendship levels

The addition of Trading / Friends / Gifts to Pokemon Go has added an extra level of play (work?) to the game. These are my thoughts on how to optimize friendship and gift sending and opening.

My starting assumptions:

  1. The goal of exchanging gifts is to build up friendship levels as quickly as possible so that Pokemon trades cost less stardust. [I am explicitly rejecting the idea that the primary reason to open gifts is to restock items.]
  2. You have not yet reached level 40 (or still care about building up your XP) and are willing to use Lucky Eggs to increase the XP you receive from friendship level increases.  [If you don’t care about XP, optimizing Pokemon gift exchanges becomes much easier.]

 

The Simple System (for Level 40 Players)

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ILLuminArt 2018 Tornado

This is “Florida Weather” (a.k.a. The Tornado) an entry to the 2018 ILLuminArt show by Florida Sculpture Guild members Amy Wieck, Louise Buhrmann and Cathy Farrar. My only contribution was the computer controlled lights to add “Lightning” which can be seen in the video below:

They won both 2nd place and the People’s Choice Award.

8×8 floating dock section

 

I bought a 8×16 floating dock for $100 delivered. The main reason it was so cheap was that they had originally used Melamine covered particle board for the decking, with predictable results.

But the pressure treated 2×6’s and foam floats were in relatively good shape, so I bought 4 brand new 2×6’s to have nice new lumber on the outside, and built my own 8×8 floating dock.

I used 7 2×6’s total (4 new ones and the 3 interior ones salvaged from the original dock) to build the frame around the foam floats, wheeled it down to the lake, and then screwed in 19 composite deck boards.

And here is the finished product (before adding hardware to fix it in place with pipe floats, bumpers, solar lights, etc…)

 

The total cost was about a dollar per pound of dock. The composite deck boards were the heaviest and most expensive single item, although the hardware to hold the dock on pipes and attach it to other dock sections will also add significantly to the cost.

Item Price Weight
Old Dock parts w/ Delivery 50 100
4 (new) + 3 (used) 2×6 -ground contact PT 23.52 117
3x tubes of black calk 14.34 2
deck screws 3.5” 8.05 1
19 composite Deck Boards 252.7 307
2 lb deck screws (1 5/8″) 16.08 2
2x TommyDocks floating dock pipe guide (with pipe & augers, not included in the weight) 111.9 4
4x Solar Pathway Lights 57.95 1
Totals (Cost / Weight) $534.32 534lb

Grid-Tie Solar System Pricing in Orlando – My shopping experience

We recently hired 3 Guys Solar to install a 10.4 kW grid-tie solar system on our house. They installed 36 Axitec 290 watt mono panels with DC Optimizers on Iron Ridge racking, and a 10 kW Solar Edge grid-tie inverter.  Our final price was $2.409 per installed watt (Summer 2018).   I say final price, because we had a wide range of quotes from multiple companies, and several companies lowered their initial quote upon seeing quotes from the other companies. Our home,  with a new asphalt shingle, south facing roof with plenty of room for panels was about as simple and optimal as you can get for a solar install, so if your roof is more complicated (tile, metal, gables, vents, skylights etc) you can expect to pay a bit more. Read on for the full story of how we got to this final price.

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Ego 21″ mower (LM2100SP) 2nd self propel motor failure & repair report

No, this post isn’t an accidental duplicate of this post from last year. Yes, the self propel unit on my 21″ SP Ego lawn mower failed a second time. (This is 9 months after it was replaced under warranty from the first failure, which occurred around month 4 of ownership, so this failed self propel motor lasted twice as long as the first one.)

However,  I’m quite pleased with Ego’s warranty service compared to the last time when I had to take the mower to Home Depot’s service department (who kept it for 5 weeks).

This time when I called Ego’s customer support number, I only had a seven minute hold time before talking to a person, and the customer support representative said that they would send me out a new replacement mower, arriving in 5-10 business days. [I was instructed to remove the serial number sticker and take the defective mower back to home depot “for recycling”.]

I have read many accounts on Ego’s customer web forums of other self propel units failing, so they may have had a bad batch of mowers go out and are now being more pro-active about replacing them. Alternatively, maybe I’m getting a replacement mower shipped out quickly because this is the second issue I’ve had. Regardless, receiving a working replacement in 5-10 days is much better than taking 5 weeks for a repair.   I’m still going to have to push my mower to mow the lawn (and it’s a big lawn, so this is more exercise than I am looking for….) but at least I could use the defective mower as a push mower until the replacement arrived and didn’t have to hire a lawn service while it’s in the shop.

The new mower arrived 11 business days after my phone call (it would have been 10, except UPS had a delivery exception and delayed it over a weekend, which meant I had to push the old mower around one more time.

After using the new mower with its super quiet and silky smooth self propel, I can say that the self propel unit that home depot repaired/replaced had many signs of problems before it finally gave up the ghost. First, it was louder than the mower itself. Second, it didn’t have enough power to fully propel the mower up a slight incline. Third, every time the mower went into overdrive due to thick grass, the self propel would slow down. These issues were either there from the time I got the mower back from Home Depot, or they started and got worse so gradually that I hadn’t taken note of them, but after using the new mower, it became obvious that I should have known my self propel unit was not working the way it was supposed to. On the new mower the self propel has plenty of power to move up a grade at the same speed it moves on flat ground, it makes less noise than the blade mower, and it doesn’t slow down when the blade mower goes into “overdrive” cutting thick grass.

 

Pokeball Decoration (MDF, Paint, Resin)

I built this for my son. It was also a learning project for my new Maslow CNC Router (and using tinted casting resin to fill in pockets for a mixed-media project).

Videos of the process:
1 – How to design the digital file

2 – How to convert the SVG file into Gcode using the Makercam.com webapp

3 – Running the Maslow CNC Router and cutting out the part.

4 – Hand finishing, spray-paint and colored resin pouring to finish the piece.

 

You can download a zip file including the SVG and gcode (.nc) files here: pokeball_files

Degregation of EGO 7.5 AH lawnmower batteries over time

I purchased a 21″ Self Propelled EGO lawnmower in April of 2017, and although the mower’s manufacture date code was listed as Sep 2016, the 7.5 AH battery (Original Battery) that HD gave me (shipped separately and lost for a week) had a date code of Dec 2014.

I just (July 2018) purchased a second brand new 7.5 AH battery that has a manufactured date code of May 2018 so that I can mow twice as long, and be charging one battery while mowing with the other.

To monitor the performance and lifespan of these (relatively expensive) batteries, I have been periodically testing their capacity by draining them to the same level (when the red light on the mower comes on) and then measuring how many watt/hrs it takes to fully recharge them using a Kill-a-watt meter. In this way, I can compare the original battery (both last year and now) to my new battery.

Here is my data:
Original Battery Aug 2017:  380 watt/hr to recharge
Original Battery July 2018:  330 watt/hr to recharge
New Battery, July 2018: 410 watt/hr to recharge.

I didn’t start keeping track of how much power it took to recharge the original battery until August of 2017, so I don’t know if it was at the 410 level when I originally received it or not. It’s calendar age from the date of manufacture was 2+ years old when I received it in April of 2017, and I estimate it probably lost 7% of its capacity before I started the measurements.

Conclusions:
The original battery has lost approximately 13% of it’s capacity over the last year from the point I started keeping track.
(380-330= 50 / 380 = 0.1315 )

Right now, my brand new battery is 19-20% “better” than my original battery (which is 3+ years old and has been in active use for 15 months).
(410 – 330 = 80 / 410 = 0.1951)

Said another way, my original battery still has 80% of the capacity of a “new” battery after 15 months of use and several years of storage before I purchased it.  (330 / 410 = 0.8048 )

Just for fun, here are two graphs of the data points I have for my original battery over time. The first one shows how the degradation appears to be mostly linear (at least over the last year) but looks scary, because OpenOffice cheated and auto-scaled the vertical axis to only include the data points.

 

This second graph represents the total capacity “under the line” is a better visual representation of reality, as only 13% of the original capacity was lost over this time period (20% when compared to a brand new battery, so the other 7% was likely lost in the years of storage before I received the original battery).

 

 

 

Maslow CNC “hanging router” review

I have completed a few projects using my Maslow CNC “hanging router”. Although I’m not yet an expert on its use, I feel like I have enough experience for a general review. The bottom line is that it provides excellent value for the cost for a hobbyist, but will not replace a professional gantry style CNC router for professional use.

 

The source of the Maslow’s sub $500 cost is its unique motion system, which relies on gravity working against two variable length chains to position the router sled, which must slide on a flat work piece. Because you provide your own router, build the frame yourself, and cut out the final round sled using a temporary sled that you cut by hand, the electro-mechanical parts of the Maslow can ship in a large USPS priority mail box.

My Maslow is the 2nd generation that includes a ring for two chain carriages to roll along. The rolling chain carriages allow the two support chains to virtually “end” at the center of the sled where the router bit is positioned. This mostly eliminates negative effects of sled rotation and simplifies the kinematics of the machine. Earlier versions tried to model and account for the sled rotation with chains anchored off-center, or used a mechanical linkage system to achieve a similar effect. In my opinion, the ring and carriages is the best solution.

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UK Denford Micromill 2000 (February 2002 dispatch date) interior photos

Steve is working on a UK (240 volt) Denford Micromill 2000 (February 2002 dispatch date). When referring to my four part series( 1, 2, 3, 4) about how I got mine working under CNC control, he sent me some photos of the inside of his unit which I am posting here with his permission just in case they can help others working with one of these units.