1Ironhorse's blog - RC Groups
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Posted by 1Ironhorse | Yesterday @ 07:53 PM | 325 Views
May 25, 2018 (1 min 33 sec)

Posted by 1Ironhorse | May 24, 2018 @ 04:03 PM | 827 Views
Greeting my friends! I took some time and removed all of the support material from the aft turret. I also used my Dremel tool with a fine sanding drum to clean off any remaining support material. Looks pretty good. I'm pleased with the results and the depression rails.

I've started the forward turret print this morning. Initially Octoprint says 2.5 days. The forward turret also has some of the cockpit and chartroom walls attached. That's why I think it will take about 3.5 days, Monday morning around 7:00am.

Photos are on my iPhone, so will take a few minutes to get them added.
Posted by 1Ironhorse | May 23, 2018 @ 12:43 PM | 2,189 Views
Hello there friends. The Aft turret print finished up sometime early this morning. There is no steps (Y-Axis Shift) on the finished print. I took the entire turret with the depression rails and printed it as one complete part. I'm very pleased with the results, especially the depression rails. Yes, there is a lot of support material that has to be removed, but it printed out well.

With the adjustment to the printer I made (increasing the reference voltage on each axis and the extruder stepper motors drivers and replacement and securement of the Bowden tube) I think that the finished prints are better than before.

I've got to add the pictures from my iPhone, so will do that as quickly as I can.
Posted by 1Ironhorse | May 21, 2018 @ 05:56 PM | 1,030 Views
Greetings!! Printing is going along just fine. 24:00 hours into the print and still 2 days to go.
Posted by 1Ironhorse | May 20, 2018 @ 09:51 PM | 776 Views
I receied the Bowden Tube Fittings and installed one. I then printed out a Bowden Tube Fitting Clip that takes up the space between the fitting body and the release ring, it keeps the tube from shifting back and forth in the fitting. I attempeted to print out the rest of the Dayroom, but it failed twice, once by having Y-Axis shift, and the second time by pushing the support material away and also had Y-Axis shift. Y-Axis shift was first noted in my May 08, 2018 post when I noted it on the torpedo aft section print. I didn't know what it was at that point and I had not really seen it since. Long story short, I check with Thingieverse blog and discovered that the Tevo Tornado has a larger stepper motor on the Y-Axis (which makes sense since it is the motor that has to move the carrage). What was needed was to increase the reference voltage of the Y-Axis motor diver circuit from 0.8 volts to 1.25V. That seems to have fixed the Y-Axis Shift problem, but the next issue I ended up with was the Z-Axis "Home" switch got moved and drove the print nozzel into the build plate. So after a lot of adjusting the build plate, I think I have it properly placed. I had a lot of issues with prints using the White PLA, so I swithed to Green and have been getting good results since. Might just be my perception and before I got all the adjustments right. In any case, the prints are coming out much better now.

I've printed out the remainder of the Dayroom (in Green PLA)...Continue Reading
Posted by 1Ironhorse | May 16, 2018 @ 12:40 PM | 1,421 Views
Started the continuation of the Dayroom print, but it failed sometime overnight. The collet broke and the Bowden tube was free from the extruder motor. It spewed out filament and made the printer look like a spaghetti factory! Oh well...I just have to wait for the new parts to come in.

Probably won't be posting for a week or so. However, this gives me a chance to clean up the parts I've already printed.

Till next time...
Posted by 1Ironhorse | May 15, 2018 @ 08:57 PM | 1,574 Views
OK, after a lot of Google searches and checking 3D printing blogs, I found what was going on. There is a part called the Bowden tube that is the guide tube for the filament between the extruder motor and the extruder nozzel. In my case, the Bowden tube fitting on the exruder motor housing was allowing the tube to slip back and forth as the extruder motor ran forward to push material through the nozzel and backward to retract the material as the nozzel is moved to another location without laying down material. It eventually jammed the filament in the tube and the extruder driver wheel sawed the filament in two.

So, there is this blog/website called "thingiverse" where other 3D printing enthusiast put things out there for others to print. I found a Bowen Tube collet fitting for my printer so I rigged up my printer so that I could print out the collet. Just worked long enough to get the job done.

As for the dayroom, I made a new CAD model of just the last 2.75 inches of the dayroom that didn't get printed. There will be some duplication of the print, but I will cut them off to match and glue them together (famous last words! Or "The best made plans of mice and men.").

I'm running some short duration test prints now, but should start the dayroom print this evening.
Posted by 1Ironhorse | May 13, 2018 @ 05:58 PM | 929 Views
I checked the print about noon today and found that the PLA filiment had broken at the extruder motor and the print head was continuing to go through the motions. Dissapointment. Now I need to trouble shoot the printer to find out why it cut the filiment. I'll also have to do a redesign on the dayroom to print only the portion that remains to be printed. I'll choose a rib and cut the excess off of the now compleate print and glue/bond the new print on to it. That will probably be a 2 day print to finish up.

I'll need to remove all the support material and clean up the print to determine where I'll cut the dayroom and create a new print from.
Posted by 1Ironhorse | May 12, 2018 @ 10:03 PM | 1,138 Views
Saturday 04/12/2018 9:00 pm
Print time: 133:30hours
Print time left: 19 hours
206.6 MB of 235.6 MB
87% data printed

At 9:47pm the print height is 270.4mm (10.65 inches).
Print Time: 134:19:19
Print Time Left: 18 hours
Printed: 207.9MB / 235.6MB
88% data printed
no picture

I measured the CAD model and the print height should be 12.3 Inches (312.4 mm)

Print height rate-of-change is starting to ramp up as there is less data to print on each layer.
I'm estimating that it will be done printing about 1:00pm Sunday afternoon (04/12/2018) Happy Mother's Day!
Posted by 1Ironhorse | May 12, 2018 @ 10:34 AM | 893 Views
I didnt have a solid network connection last night, so didnt post hour 108:34. So a combined posting:

Friday 04/11/2018 8:04 pm
Print time: 108:34 hours
Print time left: 2 days
166.7 MB of 235.6 MB
70.7% data printed
208.6 mm


Saturday 04/12/2018 10:09 am
Print time: 122:38:57 hours
Print time left: 1 days
187.9 MB of 235.6 MB
79% data printed
241.5 mm printed

I estimated that the height of the complete print would be 246.4 mm. Im currently at 241.5 mm so my estimate is wrong.
Posted by 1Ironhorse | May 11, 2018 @ 10:38 AM | 1,295 Views
Friday 5/11/2018 8:00am
Print Time: 96:30:19
Print time left: 2.5 days
146.7 MB of 235.6 MB printed
62% data printed
182.7 mm of 246.4 mm printed
74.1% height printed.
Posted by 1Ironhorse | May 10, 2018 @ 09:42 PM | 1,399 Views
Thursday 9:15pm
Print Time: 85:45 hours
Print Time Left: 3 days
Printed 129.0 MB of 235.6 MB
54% Complete
159.6 mm of 246.4 mm printed (64.8% height)
Posted by 1Ironhorse | May 10, 2018 @ 09:35 AM | 1,741 Views
Thursday 8:17am
Print Time: 72:47:46
Print Time Left: 3.5 days
Data size 108.9 MB of 235.6 MB
(46% complete)
132.6 mm of 246.4 mm printed (53.8% height)
Posted by 1Ironhorse | May 09, 2018 @ 07:40 PM | 1,926 Views
Wednesday 7:30pm
Print Time: 60:00 hours
Print time left: 4 Days
37% complete
108.8 mm of 246.4 mm printed
Posted by 1Ironhorse | May 09, 2018 @ 10:38 AM | 1,206 Views
Wednesday 8:00 am
Print time: 48:00 hours
Print time left: 4 days
28% complete
86.3 mm of 246.4 mm printed
Posted by 1Ironhorse | May 08, 2018 @ 11:56 PM | 1,580 Views
Tuesday 10:50 pm
Print time: 39:50 hours
Print time left: 4.5 days (estimate)
23% complete
70.6 mm of 246.4mm printed
Posted by 1Ironhorse | May 08, 2018 @ 05:55 PM | 1,533 Views
34:15 into print.
19% complete.
Machine now says 4.5 days yet to print.
Posted by 1Ironhorse | May 08, 2018 @ 10:32 AM | 1,523 Views
Dayroom print. I did a calculation that if the print continued at the current rate (time per % complete) it will take nine (9) days. I dont think that that ratio is fixed, so Ill see how it goes.
Posted by 1Ironhorse | May 08, 2018 @ 01:40 AM | 1,162 Views
WOW!! I can't believe it has been 16 days since I last posted to this blog. It has been a busy 16 days for sure. But in the model building arena, I have been printing more parts. I ran out of grey PLA material and changed to Black. I really like the surface of the black, I think it only that I can see the detail in the parts better in black. I printed a lot of the Engine Room Hatch detail parts in black. I also did my first "Dummy" torpedo in black. I had the first two attempts of printing the tail section fail after printing for just a couple of hours. The third some how shifted twice and left the aft section sort of oblong. Forth attempt was successful. The center and forward sections printed without a hitch. Found what the issue was and did a quick redesign to add a circular plate for the support material to attach to. Success!

Started printing cabin/radio room parts. Used up all the black and just yesterday received my next order of filament for the printer. I have a print job that will take almost the entire reel of filament and approximately 6 days to print. I decided to print the entire dayroom structure with walls and roof as one part. The aft turret will be a seperate print job (2 1/2 days).

I have more pictures, but they are on my iPhone and I'll have to edit this post to add them...

Rev A:

OK, added torpedo pictures from iPhone. I printed the forward section and a forth aft section, this time all turned out just fine. I didn't take pictures...(sad face).

Will keep posting day room build as it happens. Wish I could get the camera to work with the printer, I could post a time lapse build of the jobs. (Sigh).