Since the pandemic started there have been lots of lessons that we all have had to either learn or relearn, mostly about patience and hygiene. We have gone from a society of practically instant gratification to having to be forced to be patient even when ordering things online. One lesson that I hope that does get maintained is the bodily hygiene habit, especially during conventions like A-Kon and the like. I keep reminding myself that having patience and self-care are good things to have and do. The biggest delay has been due to massive delays, cancelled orders and not being able to find the correct parts, but it has also given me time to research decisions and products that are better or less expensive options that I would not have explored, otherwise. I believe that before this is all over and done with that there will be a lot of changes and a new normal.
After spending a few hours with Tinker Cad, I had either an epiphany or my brain finally clicked on. I was modelling all sorts of clips to hold the Mylar sheets to the PVC frame, when the immediate solution hit me….dun dun dun!….Tape! I just need to tape the sheets to the PVC pipe and make a roll up blind to cover the aperture at the front. The blame for overthinking things sits squarely on my shoulders. I’ve devoted a good day or three to figure out how to attach Mylar sheets to PVC, when the actual solution i going to take about 5 minutes to implement(maybe half an hour in reality). Now, just need to build it, plant the seeds in the pods and add light and water at the correct times. I’d also had over thought about the seedling nursery and started stressing about the amount of filament that was going to be necessary and such, when it hit me that I have some Pyrex baking dishes that would work wonderfully.
Speaking of seedlings, I put the mint plant and the onion in the Sun light for the last few days, since it’s not been real hot, so they could get a boost of vitamins and get the chlorophyll really working.
This project is shaping up, nicely.
PCB Manufacturing Stalled; Yet Again
Well, an order of second set of smooth rods has been cancelled, not even delayed this time, so the good news is that there is less time devoted to waiting on finding more to order, just to wait around to do it again. Yes, doing the same thing over and over and expecting different results is the definition of insanity, but I do change the company, country of origin, etc., so it’s not truly insanity. So going to focus on some of the other aspects of the project and work on them, while I’m attempting to procure items for the main project. One such aspect is safety.
Safety, is paramount around machinery and even more so around CNC type machinery, because it will keep going and going until it runs out of code, breaks or loses power. The best option is to keep fingers and other body parts away from moving parts and tool ends, but accidents happen. I’ve lightly burned my fingers a few times on heated beds and hot ends at full temp, twas not fun at all. While 3D printers that are designed well are pretty safe for the most part, most DIY CNC machines don’t harm humans mostly due to the distance of the machine from nearby humans.
A few things to consider that may happen
- Broken spindle mount
- Tool end that shatters or breaks
- Metal and work surface chips and dust
- Work surface dislodging
- Catastrophic failure
What prevents or minimizes the above from happening or causing harm
- Full enclosure that electronically locks
- Dust collection
- Emergency stop button
- Regular cleaning
- Replacement of worn or broken parts
- Routine inspections
An enclosure is only useful if it’s strong enough and used, but most things fall under user error, but it’s up to the user to minimize risks to themselves, others and the environment.
Since I don’t know how big this is going to be, I’m working on the dust collection system next.
Well, I didn’t get all the tracks assembled, because I started breaking them one after the other. I was mostly too forceful with them and the design could be improved. Like everything on this blog, it’s an ongoing experiment and I am learning a lot, actually. I am hoping to make a complete track by this weekend, though. I did finally get the battery clips in the mail, so can start working on the power management system. I will also be making a blog post about the preliminary plan for the robot soon, as well.
Have a Great Weekend!
I’m off to work on some tracks and finish up the blog post on the robot.