tag:blogger.com,1999:blog-53578056924876906862024-03-28T20:29:42.186-07:00Kritzinger.netGeneral ramblings of Craig Kritzinger. Covering my various projects and hobbies, mostly only partially complete...CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.comBlogger86125tag:blogger.com,1999:blog-5357805692487690686.post-66790422921576528692020-04-24T23:27:00.000-07:002020-05-02T00:43:54.004-07:00Adding a power button & LED to my Raspberry PI
There are many posts and articles out there about this topic, this post is record the approach I took and which of the posts I followed.
As previously mentioned, I bought a couple of Rev 1 Raspberry PI Model B's when they first came out and I touched on the fact that I was using one to run my Mendel 90 using OctoPrint in this post.
What I haven't blogged about it is the fact that I since CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-46311792726899980442020-04-24T22:46:00.001-07:002020-04-24T22:46:23.606-07:00Creating a Raspberry Pi Media CentreNOTE: I'm catching up on Blogger and decided to post these draft posts that I've had partially written. I'm not completing them at this point and probably won't revisit them, but as a big part of the reason for blogging is to remind myself of what I was thinking/doing, they're still valid in this sense. This draft was dated 04/01/2017.
This article is all about the approach I took to attempt CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-13726082553401006202020-04-24T22:45:00.000-07:002020-04-24T22:45:09.051-07:00Trying out the FilawinderNOTE: I'm catching up on Blogger and decided to post these draft posts that I've had partially written. I'm not completing them at this point and probably won't revisit them, but as a big part of the reason for blogging is to remind myself of what I was thinking/doing, they're still valid in this sense. This draft was dated 28/12/2015.
In a previous post (and the one before) I mentioned the CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-76509427425875988672020-04-24T22:40:00.000-07:002020-04-24T22:40:16.317-07:00Raspberry Pi initalisationNOTE: I'm catching up on Blogger and decided to post these draft posts that I've had partially written. I'm not completing them at this point and probably won't revisit them, but as a big part of the reason for blogging is to remind myself of what I was thinking/doing, they're still valid in this sense. This draft was dated 28/11/2015.
It's been a long time since I blogged. Family life CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-33855971027893424212020-04-24T22:36:00.000-07:002020-04-24T22:36:22.140-07:00Following the Wiki calibration pageNOTE: I'm catching up on Blogger and decided to post these draft posts that I've had partially written. I'm not completing them at this point and probably won't revisit them, but as a big part of the reason for blogging is to remind myself of what I was thinking/doing, they're still valid in this sense. This draft was dated April 2012.
As the title says, I am following the wiki's CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-30872118170989801512013-06-09T08:06:00.000-07:002020-04-24T22:47:04.314-07:00What's Now... Mendel 90 in progressFirst, a quick recap on my last post, projects planned:
Filament extruder: I backed the filastruder Kickstarter so am just waiting for my kit to arrive so I can start experimenting with making my own filament.
Plastic shredder/grinder: No progress - Marcus Thymark is now focussed on his extruder, and his shredder although done is appears to be temporarily shelved.
Mendel90: I've started CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-20267344495421992402013-03-18T14:06:00.001-07:002013-03-30T14:22:07.915-07:00What's next...Having been absent from the RepRap scene for a while (well work and new baby seem to take a lot of time), I have managed to get my printer dusted off and running again.
I've done a lot of reading the last couple of weeks, together with some tinkering and decided on some future projects which I am watching. These are (no order of importance or action intended):
Filament extruder: I alwaysCraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-58392714365691982012012-04-25T23:14:00.002-07:002012-04-25T23:16:00.058-07:00Printing SparesAfter quite a bit of messing about getting things setup just right I am eventually managing to print some real world things.
I printed 4ndy's Modular Printable Spool and one of jonaskuehling's Greg's Wade reloaded - Guidler, Tilt Screws, Fishbone Gears. (Pictures on Thingverse, try the links)
The first because the filament was getting stuck and the second as others have CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-84707109521873816262012-04-09T06:34:00.001-07:002012-04-09T06:34:50.022-07:00Hot Bed Heat Up - ResolutionThanks to the feedback from nophead, Triffid_Hunter & yngndrw on the forums, I have updated my wiring to overcome the short comings (pun intended) of the Sanquinololu.
The summary is as follows (based on the information gleaned from the three above):
The issues:
The molex connectors are rated for c.1A per pin.
The HotEnd's typically draw sub 2A
The heated bed draws about 11A
The pcb CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com4tag:blogger.com,1999:blog-5357805692487690686.post-65448685849686562262012-04-08T11:32:00.001-07:002012-04-09T06:17:10.627-07:00Hot Bed Heat Up - Be CarefulJust yesterday I was reading this thread on the forum about standards. One of the points was about the connectors on the Sanguinololu boards not necessarily being up to the job for the currents that the heated bed need.
Lo and behold, today while calibration my bed stops heating. This is what I found!!
Might looks innocuous enough to the casual CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com4tag:blogger.com,1999:blog-5357805692487690686.post-14206865445776267962012-04-08T07:10:00.000-07:002012-04-09T06:17:38.697-07:00Recalculating Thermistor Tables & more bed levellingThermistor Tables
Those following this blog will know that I have had some issues with my printer reporting incorrect temperatures. As mentioned in my last post I tried a different thermistor (also EPCOS, so similar Beta value) with no improvement.
Today I decided to sort it out. Instead of going the normal route and measuring the resistance at different temperatures and CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com3tag:blogger.com,1999:blog-5357805692487690686.post-54345002167126511532012-03-31T09:13:00.001-07:002012-03-31T09:13:33.410-07:00Checking out the bedFollowing my last post in which I asked for suggestions to sorting out the bed temperature mismatch, I got a response from T3P3 who suggested I check the room temperature resistance of the thermistor including the connectors. I did this and got a read of more than 100K (around 150K), but what's the definition of room temperature? (My mendel lives in the shed!!). I did however CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com1tag:blogger.com,1999:blog-5357805692487690686.post-20539947626537529212012-03-26T12:41:00.000-07:002012-03-31T00:05:56.789-07:00Tweaking the whistleI took the printouts I did yesterday to work today, to show my colleagues.
One of the guys, Dan, is into product design and has used some professional equipment in this field while studying. He was very impressed, so I assume many more water cooler conversations on this topic.
The more I played around with the whistle, the more I felt that the issues appeared to be too little filament on CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com2tag:blogger.com,1999:blog-5357805692487690686.post-44043411206910096062012-03-25T08:17:00.001-07:002012-03-26T12:41:20.222-07:00Couldn't wait for the whistleTold you I'd probably fiddle in the meantime.
I downloaded and printed Madkite's Whistle Redesign. It took 17.5 minutes and appart from my "normal" settings I changed the infill to 100%.
I was quite impressed with the bridging, but the lanyard hole didn't come out. I'm waiting for the bed to cool so I can remove it.
Here are some pictures:
CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-44211776968042653402012-03-25T07:43:00.001-07:002012-03-26T12:41:39.879-07:00Calibration continuedHaving completed the mechanical calibration yesterday, it's time to move onto extruder/print calibration.
SIDEBAR: I suddenly realised I hadn't revisited the max values on all my axes after calibration, so here goes. The approach used was to home all axes and then to move each axis in turn using the various increments until I felt comfortable that the maximum had been reached. CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-27450601627739226932012-03-24T14:19:00.001-07:002012-03-25T02:29:24.486-07:00Calibration TimeEnd Stops
As mentioned, I need to get on with calibration of the Mendel, first the first step being sorting out the end stops.
With the change to Sanguinolo from TechZone Gen3, my end stops have changed from Opto's to limit switches. This means I don't have the correct mountings. I had a look at the Prusa Mendel assembly guide provided by Gary Hodgson. From this I could see CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-31869166649913430232012-03-24T01:30:00.002-07:002012-03-25T01:08:59.593-07:00Sanguinololu Sprinter FirmwareThese are the steps I followed to be able to load the Sprinter firmware onto my hardware.
Sanguino for windows (link)
Install Arduino software (I got version 1.0) (But this doesn't work for Sprinter yet (see below), so I also got 0023)
Which means download it and unzip to a suitable folder. Then we skip to Sanguino steps
Download latest Sanguino version from Google code. (I got CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com1tag:blogger.com,1999:blog-5357805692487690686.post-56908436019164587352012-03-23T12:19:00.001-07:002012-03-23T12:20:12.444-07:00Some shopping, some bodge reversingI took the day off work today as I needed to attend a private appointment this morning, so I figured I would use the rest of the day to progress with the Mendel.
Shopping
I stopped by the shops and managed to accumulate a number of goodies:
Sandbar resistors to reverse the bodge on the power supply.
Some connecting posts to make the power supply more universal
I picked up a new multimeter CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-71570577852146362612012-03-20T13:59:00.001-07:002012-03-23T02:07:00.472-07:00Bodge Alert, but it melts plastic!!!I ended the last post saying that I needed to try out the heating. Of course this wasn't going to be something I leave for very long.
I am using an old lab power supply that I was given by someone on FreeCycle a while back. I didn't expect it to make the grade as the ammeter only goes to 4 amps. I did try it however, but no such luck. I then went to dig out the various CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-67719780167852191842012-03-18T11:32:00.001-07:002012-03-18T11:32:56.626-07:00Extruder MountingThe first think I noted was that the design of the extruder means that I have should have fitted it to the carriage before final assembly. I also think I need to figure out the hot end wiring at the same time, else I'll be tearing it down again.
PCB Heated Bed Mk2
I started with the bed. I had bought a load of DiBond FR as it is meant to be fire resistant, so should handle the heat CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-55399001778718322872012-03-18T00:20:00.002-07:002012-03-18T00:27:32.426-07:00Sanguinololu SetupAccording to the supplier "Think3DPrint3D", my electronics was already flashed with Sprinter by Kliment and they user Kliment's Printrun/Pronterface to control it all, so after connecting it should just run. Great!!!
I went ahead and installed the pre-compiled version of Pronterface. When that didn't work I moved on to the latest version from GitHub (linked above). I wasn't CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-38884909592907270872012-03-17T11:27:00.000-07:002012-03-17T11:27:02.107-07:00Sanguinololu InstallationAs mentioned earlier, I bought a Prusa Heated Bed and Sanguinololu kit from Think3dPrint3D.
Communication was fantastic and all the goods arrived this morning as promised, well packaged and labeled.
I then started assembling the electronics. This is much simple than the TechZone ones due to being a single board, so basically the only issues were mounting the board on the frame and CraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-24996247488990382012012-03-17T07:15:00.005-07:002012-03-17T10:50:29.194-07:00Extruder ExperienceIn 2010 I bought the plastics for the Wade's Extruder from nophead as per this blog post. As mentioned in today's earlier post, I have have also purchased a hobbed bolt and Mk2 HotEnd from parcan.I must say, I was very impressed with parcan's service. Rapid delivery, nicely packaged, and it looks like everything I should need. I'll go through this in detail below.Hobbed BoltThe package arrivedCraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-18370781557300258432012-03-17T04:16:00.003-07:002012-03-17T04:49:41.374-07:00RepRap back on trackAfter about 17 months of absence I decided to get this project back on track.This was inspired partly by the recognition that I have been spending way too much time working and way too little time on my hobbies, and partly by a revival of interest due to the recent launch of the Raspberry PI. This device is right up my street, having cut my teeth on a ZX Spectrum back in the 80's. I immediatelyCraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0tag:blogger.com,1999:blog-5357805692487690686.post-4135722255601312112011-12-11T10:56:00.000-08:002011-12-11T12:05:39.354-08:00Mercedes SL - Fitting Parking SensorsWith winter upon us I decided to fit parking sensors to my 280SL as the rearward visibility of this car isn't fantastic at the best of times, so with frosty windows a scrape is inevitable.I'd like to start by thanking Stevitee for posting his photo sequence on the Mercedes Club forums. Without those pictures I'm sure it would have taken me a lot longer as I didn't have to figure everything out, ICraigRKhttp://www.blogger.com/profile/01024737057514912781noreply@blogger.com0