All posts by rjmah

Exercise for 3D Printing

  1. Replicator Exercise

Open stl. Rescale to 75%. Place on platform. Generate GCode.

Try functions for View, Rotate. Undo.

  1. Sketchup Exercise

New drawing. Draw 80,60 mm rectangle at origin.

Delete guideline figure. Zoom Extents. Orbit so you can see the rectangle drawn.

Draw 21,15 mm rectangle at origin. Draw 4.5 mm radius circle at the endpoint.

Draw a 6 mm slot, 30 mm above the 4.5 mm hole and 35 mm long. Hint: Use tape measure or a rectangle

Outline plate to 60×85 mm and add 1mm mounting holes at the corners.

Delete construction lines and pull face up to 3.6 mm

Challenge exercise: Fillet corners to follow the mounting holes. Redo 6 mm slot and radius it to the 4.5 mm axle hole.

3) What keys/mouse button are the same as Solidworks?

4) Make a bracket to hold something at a 120 degree angle

Create a part that might be useful on this year’s robot.

Further resources/notes on the Makerbot Thing-o-matic:

http://downloads.makerbot.com/support/pdf/Thing-O-Matic/Docs/Assembled%20Thing-O-Matic%20Quick-Start%20Guide.pdf

Google search “thingomatic generate settings”

https://www.protoparadigm.com/news-updates/thingomatic-mk7-pla-setup-and-troubleshooting-likely-mk8/

http://replicat.org/ Use version 0027

0040 doesn’t work with Makerbot 7. Maybe a version in between will work smoother? Software quirks: Long start-up, long delay after a build to recover the control panel. Always close RepilcatorG before computer hibernating otherwise the COM port gets lost and needs a reboot.

Softwware for printing with the FLSun: https://www.repetier.com/

Copy of Powerpoint https://drive.google.com/open?id=1tQqoPtUaMiREzhEhO2YiYPI7K1V4f_Tp

PLA vs. ABS

https://www.creativemechanisms.com/blog/abs-vs-pla-whats-the-best-plastic-for-3d-printing

PETG vs. PLA

https://all3dp.com/2/petg-vs-pla-3d-printing-filaments-compared/

Using Rafts

https://rigid.ink/blogs/news/3d-printed-raft-brim-skirt

3D Objects to download

https://www.thingiverse.com/ See #3DBenchy

Formlabs Laser Sintering, Epilog Laser Cutter

Ignition SCADA Links

Ignition 8.0 documentation

https://docs.inductiveautomation.com/display/DOC80/Welcome

Static PDF copy (no components)

https://support.inductiveautomation.com/?/iaenhancements/UserManuals

Perspective Overview

https://docs.inductiveautomation.com/display/DOC80/Perspective+Sessions#PerspectiveSessions-View

Using Chrome to test on Virtual Phone

https://docs.inductiveautomation.com/display/DOC80/Views+and+Containers+in+Perspective

Ignition University Select Videos

https://inductiveuniversity.com/video/using-designer-user-interface?r=/course/ignition-designer

https://inductiveuniversity.com/video/tags-in-ignition

https://inductiveuniversity.com/video/keeping-tags-organized

https://inductiveuniversity.com/videos/indirect-tag-binding/8.0

https://inductiveuniversity.com/video/power-table

Other Notes:

Ctrl-f. Search and replace. Select items/screens.

How to merge with existing apps. Use export and import tags. It’s in XML so it can be edited before importing.

Ctrl-/ toggle script comments

See more properties. Filter .. All

Windows Update 1809 and VPN

So after a few months of suffering, I’ve rolled back update 1809 and my Aventail VPN is working again. The annoying thing was the connection would open for about 30 seconds and then Windows would go into a hard crash and do auto reboot. After a few Google searches I finally found this:

https://social.technet.microsoft.com/Forums/en-US/dce4eb2f-a6ac-4e34-9b09-181b62e3c88d/vpn-breaks-after-windows-update-version-1809?forum=win10itpronetworking 

and the VPN is a specific split tunnel configuration. I have another client using SonicWALL which was unaffected.

I guess I am only doing Hotfixes until the next major Win 10 update comes out. Hopefuly, they fix this. I sent them at least 10 crash dumps. I did revert to my older Win 7 laptop for a while until I gave up and uninstalled update 1809.

Time Series Database

Data has been collected since the 80’s typically in a desktop database or relational database like Oracle. This data has found newer data formats for storage to accommodate the Cloud and Big Data. Specialty software tools are emerging for IIoT and Industrie 4.0.

Click here to see Automation.com article on Times Series Database

Win 7 disk recovery – Bootrec

I just spent two days on a laptop hard drive recovery. I woke up and powered on my computer and it would not boot. The drive was also listed as uninitialized by the BIOS.

I feared the worst but put the SATA drive into a USB adapter and ran EaseUS partition manager. It was able to recover the three disk partitions and I immediately copied any recent files to a backup drive. All my files seemed there and undamaged. An HDScan said there were no bad blocks.

I put the drive back in the laptop and found I didn’t have a Win 7 DVD handy to run the Recovery program. Luckily Win 7 ISO is readily available in the Internet. Once I downloaded it, ran the recovery option (below the new Win 7 install button). It booted the computer twice but then finally said it could not detect any errors.

Using the option to get a command prompt, I learned all possible options for using diskpart. Then tried bcdboot and bcdedit.

The final answer was “bootrec.exe /FixMbr” and magically the laptop was back to normal. Really? What was the MS Win 7 recovery program really doing besides hard drive error scans? Shouldn’t the final step of the recovery done this?

Anyway glad to have my laptop back to working order.

 

Modbus Resource Sheet

Modbus Comms Information

Proface Modbus Explained Serial vs. TCP

https://www.youtube.com/watch?v=k993tAFRLSE

Articles on Modbus

http://www.automation.com/library/articles-white-papers/fieldbus-serial-bus-io-networks/introduction-to-modbus

http://www.ccontrols.com/pdf/Extv9n5.pdf

RS485/Modbus Wiring

http://www.chipkin.com/rs485-cables-why-you-need-3-wires-for-2-two-wire-rs485/

Honeywell  Standard wire terminals:  A 485+, B 485-, Ground, Shield

http://www.rs485.com/rs485spec.html

Modbus on XNX transmitter

http://www.honeywellanalytics.com/~/media/honeywell-analytics/products/xnx-universal-transmitter/documents/english/1998m0738-xnx-tech-manual-eng-rev12.pdf pg 185-189

https://www.honeywellaccess.com/documents/800-16176_EGR_Tech_Bulletin-Recommended_485_Wiring_for_NX_Loops.pdf

Scott Meridian Gas Detector – includes 4-20 mA and Modbus RTU

https://www.scottsafety.com/en/us/Pages/ProductDetail.aspx?productdetail=Meridian+Universal+Gas+Detector

HART

http://literature.rockwellautomation.com/idc/groups/literature/documents/pp/1756-pp016_-en-p.pdf

http://en.hartcomm.org/hcp/tech/aboutprotocol/aboutprotocol_how.html

 

SCADA Demo with Modbus TCP and RTU over TCP

https://www.inductiveautomation.com/

Wireless Modbus  US$121.75

http://gridconnect.com/wireless-modbus.html

https://oceancontrols.com.au/NOW-001.html $400

Modbus TCP versus Modbus RTU over TCP

http://www.simplymodbus.ca/TCP.htm

Modbus servers

http://www.comtrol.com/elements/uploads/fckeditor/file/DeviceMasterUP_ModbusSolutionsExamples_LT1419C.pdf

http://www.anybus.com/products/abs.shtml

Looking for Projects in Ottawa

Due to changes in personal circumstance I am actively looking for projects in Ottawa.  Past projects I have executed in Ottawa are e-beam evaporators for NRC and environment test chamber for rats with Health Canada research.

My business is manufacturing automation. I execute many one-time projects for the various clients. Most clients return to have further work done.

Reasons why they contract me:

Relieve workload on existing personnel

Fill the gap between engineering and IT. Real-time data collection of production or process information into a database like Oracle is a lot different from business applications.

Provide Engineering mentoring for younger employees

Workstation re-fits. Existing controls or display screens are obsolete and need replacement but PLC control needs to be reverse engineered and re-programmed for the new system.

Control system issues that cannot be resolved. I have experience in electrical, electronic and control systems.  This lets me find problems and solutions that may not be apparent to individual specialists.

I provide outstanding service at a fair price.

I execute projects within client timeline requirements.

Typical Project:

http://rmsystems.ca/older-projects/ecr-deposition-using-rf-plasma/ (Many others shown here)

Please contact me if you or anyone you know have requirements like these.

Outlook Express Inbox Problems

I’ve had a problem with Outlook Express for 2 days.  I couldn’t get any new mail to appear.  It would get the message count from the server and then error out.  I looked on the Bell site for potential solutions, server alerts or config. changes.  I guess I spent a lot of time so a tech chat session popped up.  I said OK and the tech played around and re-checked everything I did.  In fact by the time he left, I had another error popping up on all my old messages.  He said he didn’t know and to clear out my inbox.  Well I tried clearing it but I noticed some messages wouldn’t move but ended up duplicating.  So I ran the folder compacting utility and that fixed it.