Looking to make some 90deg gear trains, and wanted to know how much force 3d printed heard could resist.
After printing some gears, a holding block and some shafts, the testing began.
First few tries, the shaft to gear attachment kept falling. It was failing around 44 in.lbs of torque yet the gear teeth remained intact.
After redesigning the shaft to gear attachment, I was able to break some teeth at around 57 in.lbs of torque.
Some interesting and some common ways to make 3d parts stronger.
http://st3p3d.com/blogs/3d-printing/14992261-a-few-ways-to-strengthen-3d-printed-parts
I was evaluating the demo version of Agisoft PhotoScan and I could not the OpenCL option to show up in the software’s preferences.
After installing the python OpenCL libraries, PhotoScan was able to detect the GPU and gave me the OpenCL option.
https://www.youtube.com/watch?v=VKtw214RFZI
https://www.youtube.com/watch?v=YT7bUj-CIRw
https://www.youtube.com/watch?v=I0XtQqTBmus
I lost a HD the other day and whatever data was on it. I think I had most things backued up but there was still some data that is gone forever. This got me thinking about how to better protect ALL devices in my house.
Storage is cheap, but I don’t want 2 HD in every machine. And some machines like the laptops can’t use 2 HDs.
At the same time I need to re-evaluate the NAS solution in my house. I’m currently managing two systems. An UnRaid computer for archival storage and a Nas4Free machine for a faster access of data.
Steps:
1. Add an SSD drive to UnRaid as a cache drive to speed up write functions on the UnRaid system, and compare network read/write speeds with the Nas4Free box. See how different the two really are.
2a. If speeds are very close, take apart the Nas4Free array and move the two 2TB drives to the UnRaid system.
2b. If speeds are not close buy two 2TB drives and replace the two 1TB drives in the UnRaid system. This will increase the array capacity by 2TB.
3. For all computers set up some software that will backup the working files of all computers to a backup folder on the UnRaid system. Have this backup be done once a day (probably at night). A scheduled rsync operation (that also mirrors deleted files) should suffice. I don’t want an ever growing amount of data. Just a mirror copy of the machine’s HD in case it fails.
To print large objects, they need to be split up into smaller pieces that fit within the 3d printer’s build volume.
Some useful links:
Stratasys page for bonding parts together.
Interesting plugin for SW, Inventor and AutoCad that will split up a large object and break it into smaller build volume sized chunks. Find it HERE.
Looking for a blood glucose meter.
Best 10 glucometers as lsorted by Men’s health
http://www.menshealth.com/spotlight/diabetes/top-blood-glucose-meters.php
It looks like not all blood sugar meters are equally accurate. List of a bunch of meters on this page.
http://www.diabetesdaily.com/voices/2013/07/blood-glucose-meter-accuracy-comparison-chart/
Same data sorted by total accuracy from lowest to highest (total accuracy = the sum of all the entries for each unit)
(table at the bottom of post)
Some recommendations for the Accu-Chek Active since it’s accurate and test strips are least expensive.
Excellent article on the technical challenges of getting accurate readings from glucometers:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769957/
| Meter | Within 15% | Within 10% | Within 5% | Within 15% | Within 10% | Within 5% |
| Under 100 mg | Under 100 mg | Under 100 mg | Over 100 mg | Over 100 mg | Over 100 mg | |
| SeniorLine GM210 | 15% | 0% | 0% | 79% | 55% | 29% |
| Glucohexal II | 50% | 21% | 7% | 80% | 64% | 32% |
| GlucoRx (TD-4230) | 83% | 41% | 14% | 65% | 40% | 14% |
| Wellion CALLA Light | 68% | 33% | 13% | 89% | 73% | 52% |
| GlucoSmart Swing | 84% | 53% | 15% | 94% | 67% | 33% |
| Futura Monometer | 90% | 68% | 27% | 79% | 59% | 26% |
| IME-DC Fidelity | 72% | 43% | 18% | 94% | 85% | 48% |
| Biocheck TD-4225 | 76% | 52% | 22% | 97% | 80% | 49% |
| Element | 90% | 79% | 48% | 83% | 64% | 30% |
| GlucoTel | 89% | 70% | 33% | 92% | 72% | 41% |
| Bayer Contour usb | 90% | 69% | 45% | 91% | 68% | 34% |
| smartLAB genie | 84% | 52% | 23% | 98% | 87% | 57% |
| iDia | 96% | 80% | 47% | 90% | 71% | 40% |
| GlucoCheck Classic | 97% | 84% | 55% | 85% | 66% | 38% |
| Beurer GL32 | 85% | 62% | 40% | 99% | 91% | 56% |
| iBGStar | 96% | 90% | 52% | 90% | 72% | 35% |
| WaveSense Jazz | 100% | 75% | 38% | 95% | 80% | 47% |
| GlucoCheck XL | 97% | 92% | 58% | 88% | 65% | 40% |
| Pura | 100% | 95% | 48% | 100% | 74% | 30% |
| GlucoCheck Comfort | 96% | 86% | 56% | 95% | 74% | 41% |
| iXell OLED | 97% | 85% | 52% | 97% | 79% | 39% |
| smartLAB global | 91% | 85% | 57% | 93% | 79% | 48% |
| Beurer GL40 | 98% | 90% | 52% | 95% | 78% | 42% |
| Omnitest 3 | 94% | 86% | 64% | 91% | 79% | 48% |
| iXell | 100% | 98% | 68% | 89% | 75% | 38% |
| OneTouch Verio | 97% | 78% | 40% | 100% | 95% | 64% |
| microdot+ | 98% | 95% | 62% | 94% | 83% | 43% |
| Accu-Chek Compact Plus | 100% | 86% | 27% | 100% | 94% | 69% |
| Gluco-test Plus+ TD-4230 | 96% | 94% | 76% | 95% | 79% | 42% |
| OneTouch VITA | 98% | 93% | 72% | 99% | 87% | 50% |
| BGStar | 98% | 92% | 80% | 97% | 87% | 62% |
| Accu-Chek Performa | 100% | 95% | 72% | 99% | 94% | 68% |
| Accu-Chek Mobile (maltose independent) | 100% | 98% | 71% | 100% | 94% | 66% |
| Accu-Chek Performa | 98% | 97% | 78% | 98% | 92% | 66% |
| Accu-Chek Aviva | 100% | 97% | 80% | 99% | 91% | 64% |
| Accu-Chek Mobile (maltose dependent) | 98% | 98% | 73% | 100% | 96% | 66% |
| Accu-Chek Nano | 100% | 96% | 80% | 99% | 95% | 65% |
| Accu-Chek Performa Nano | 100% | 98% | 87% | 100% | 96% | 64% |
| Accu-Chek Active | 100% | 100% | 72% | 100% | 100% | 79% |
| Accu-Chek Go | 100% | 100% | 94% | 100% | 96% | 79% |
| FreeStyle Lite | 100% | 100% | 93% | 100% | 100% | 86% |
| FreeStyle Freedom Lite | 100% | 100% | 98% | 100% | 98% | 90% |
Inexpensive and small LIDAR:
http://www.robopeak.com/blog/?p=278
http://www.robotshop.com/ca/en/robopeak.html
The previous post about the align 500 heli tail being useful was not correct. I am looking for a tail shaft of 5mm so I need to move to the 600 size heli.
http://www.flying-hobby.com/600-carbon-fiber-tail-boom-3k-trex-600-p-8185.html
I got searching the other night for ideas on bulding a VP quad again.
One of the issues i had last time was finding a decent pitch slider mechanism. Well I found a few reasonably priced:
http://www.flying-hobby.com/kde-direct-align-trex-500-series-performance-tail-control-p-9740.html
http://www.flying-hobby.com/500esp-metal-tail-pitch-assembly-p-10400.html
http://www.helipal.com/h50189-500metal-tail-pitch-assembly.html
It seems the align trex500 heli pitch slider p/n is either h50189 or H50190. Should find out what the difference between them is.