toddtmw Posted July 19, 2019 Share Posted July 19, 2019 Tinkercad is easy to get started with, but some things can be difficult. I'd love to hear some of the techniques you are using. One thing I haven't figured out is how to bevel the edge of something that is not straight. Say you want the top of a thing to have a edge that runs front to back with a curve rather than a straight line. I can create the curved plane, but I cannot figure out how to bevel the top of that so it is not a harsh 90-degree corner. I'm sure there are tutorials out there. Perhaps I will do some investigation. These look really awedome, by the way. I have been wondering for a while now if we could recreate all of the plastic bits of all of the Atari things using 3-d printing. Someone has posted a 1050 face plate. I haven't printed it, but it looks pretty close to the original. How cool would it be to be able to print an entire 1050 enclosure? -Todd 1 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 19, 2019 Author Share Posted July 19, 2019 I added an eighth of an inch to the depth, saved half an inch on the width and length of the XF551. @orpheuswaking on twitter was helping me out with that. I think it looks ok. 2 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 19, 2019 Author Share Posted July 19, 2019 5 minutes ago, toddtmw said: One thing I haven't figured out is how to bevel the edge of something that is not straight. Say you want the top of a thing to have a edge that runs front to back with a curve rather than a straight line. I can create the curved plane, but I cannot figure out how to bevel the top of that so it is not a harsh 90-degree corner. That was the hard bit. I used alternate workplanes to draw against odd angles and used fillets to remove the edges, there was an unbelievable amount of fiddling to get that right! I still haven't worked out how to do an outside curve on a three way meeting of corners. Look at this point on the 810 There is a sharp line there where it should be rounded, I have no idea how to correct that in TinkerCad, I think it might be too complex, I feel it has something to do with getting a cone at just the right angle but it's beyond me currently. Luckily at the scale these are going to print it won't matter Quote Link to comment Share on other sites More sharing options...
toddtmw Posted July 19, 2019 Share Posted July 19, 2019 On 7/17/2019 at 9:43 AM, Mr Robot said: I'll be putting the STL's on my website. I haven't decided if I'm going to offer prints as well, I currently don't have a 3D printer so I have no experience of the process... yet! Well, hopefully it will all just "work" fo you. It has been my experience that often things that look good on the screen run into trouble in the real world. Even just printing one of each of these will likely take a week and that's assuming nothing needs to be tweaked. Like I said, I hope I'm wrong and they all fit together perfecly on the first try. Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 22, 2019 Author Share Posted July 22, 2019 Close but no cigar. The bottom sheared off the front panel during print, probably need a solid infill for that little part, it'll make it stronger. The silver strip doesn't fit properly, and the bottom door is a bit tight. I need to redesign the front bits mating surfaces and give the door a little room, and maybe make it a bit thicker. I can't test fit my sdrive, the cable is wired out the wrong side, it looks about right, the pegs on the bottom door fit perfectly and the SDM slides in to the hole, I just cant push it all the way with the cable there, I have more bits on order from afar which I shall use to make a new sdrive and test fit before I print again. 3 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 22, 2019 Author Share Posted July 22, 2019 My new screen arrived today... Perfect fit, that isn't necessarily a good thing but it does look good Still waiting on the new UNO 3 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 24, 2019 Author Share Posted July 24, 2019 Everything is just a bit too tight. The UNO wont slide in because there isnt enough space in the USB/Power holes, the screen doesn't go in when plugged into the uno because they stuck the lcd panel on slightly twisted, the stylus doesn't quite slide into the storage hole etc etc etc The changes were thankfully pretty minor to make, except for the front panel and silver name panel parts which I had to completely redo to avoid some supports, when the printer finishes printing my new GBS8220 case I shall be having another test print. Yes that is a crack in my shiny new screen, I broke it during the filing/refitting stage ? 2 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 24, 2019 Author Share Posted July 24, 2019 Wow the cost of 2.8 inch screens on eBay has gone up, $20 on ebay, $8 on Aliexpress free shipping, just have to wait! Quote Link to comment Share on other sites More sharing options...
toddtmw Posted July 24, 2019 Share Posted July 24, 2019 So. I’m glad it’s not just me that has these issues. I measure with calipers to a tenth of millimeter and then when I print it, it’s just not what I expected. I end up with boxes of failed prints before I get one that is what I want. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted July 24, 2019 Share Posted July 24, 2019 shrinkage? Quote Link to comment Share on other sites More sharing options...
toddtmw Posted July 24, 2019 Share Posted July 24, 2019 3 Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted July 24, 2019 Share Posted July 24, 2019 (edited) The shrink rate is anywhere from 2 to 8 percent depending on what the material is and if you use stabilizing fill to hold the shape...pla vs abs respectively. some suppliers have blends so once you know the rate for each mark it on your material chart. Edited July 24, 2019 by _The Doctor__ Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 24, 2019 Author Share Posted July 24, 2019 This is all PLA so minimal shrinkage, I did print in draft so the tolerances are a bit looser too. The problem is this is my first time doing this, I didn't leave any room at all, there was literally no room for error. From the looks of it after filing, sanding, scraping etc, I need very little, maybe .1 of a mm all around. I've adjusted my negative space model so it should all have a little play now. 1 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 25, 2019 Author Share Posted July 25, 2019 Test print #2 Stylus still doesn't fit, made the hole bigger again. I forgot the supports on the front and drive close bar, it all sagged a bit there. Added supports. Everything else fits great, I've added a little more room just to allow for Chinese manufacturing, if my screen is wonky, yours may be too! I've been fighting with slicer profiles, I've tried CreAwesomeMod, Magic, Disney etc. none of them are as good as the defaults so I gave up with all that and went back to the build in settings... with a couple of 'secret sauce' tweaks by me. Print time for the 1050 is a little over 10 hours It's looking pretty good. Time to order coloured PLA! 4 Quote Link to comment Share on other sites More sharing options...
JR> Posted July 25, 2019 Share Posted July 25, 2019 Looking good! What printer are you using? Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 25, 2019 Author Share Posted July 25, 2019 It's an Ender3 Quote Link to comment Share on other sites More sharing options...
JR> Posted July 25, 2019 Share Posted July 25, 2019 Cool, just picked up one of those myself. I've been practicing with the SDM cases from your site, and getting really good results. I actually found that printing them at a 45 degree angle gave better results on my printer, and a bit faster too! Looking forward to trying out some of your new models. 1 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 25, 2019 Author Share Posted July 25, 2019 Can you post a pic of one of your 45' prints? I'd like to see how that came out. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted July 25, 2019 Share Posted July 25, 2019 that's becoming a trend, printing on an angle so the changing how the lines are laid down. I wonder if there is something to it? I'd be interested in how it changes the strength of items of varied thickness. Quote Link to comment Share on other sites More sharing options...
JR> Posted July 25, 2019 Share Posted July 25, 2019 1 Quote Link to comment Share on other sites More sharing options...
toddtmw Posted July 25, 2019 Share Posted July 25, 2019 For me, printing at 45 means the fill lines are straight rather than at an angle. So, for something as regularly shaped as the SDM case, it can make it look cleaner. Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 25, 2019 Author Share Posted July 25, 2019 I'm definitely getting some interesting patterns in the print. This is the bed side and this is the top When I am happy with the model, I'll try one at 45 and see how it comes out. I've been trying to avoid all the wasted pla from the supports. Quote Link to comment Share on other sites More sharing options...
JR> Posted July 25, 2019 Share Posted July 25, 2019 16 minutes ago, Mr Robot said: When I am happy with the model, I'll try one at 45 and see how it comes out. I've been trying to avoid all the wasted pla from the supports. Interestingly the supports still generate relative to the bed, not the object. in CURA at least, so they are angled relative to the straight lines in the object when printing @ 45'. No really long supports this way. I find them easier to remove. Although you can achieve similar results by changing the support type I still like the zig-zag. Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 26, 2019 Author Share Posted July 26, 2019 SDM fit is now spot on. PLA ordered. Haven't tested the 810 or 1010 yet. 6 Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted July 26, 2019 Author Share Posted July 26, 2019 See you in 23 hours! That 1010 is huge! 1 Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.