That worked, thanks! I woke up at 4am this morning and ran downstairs to try the following. I guess I was thinking about it in my sleep! :-) $fn=100; union() { rotate_extrude(convexity = 10) translate([27, 0, 0]) circle(r = 1.5, $fn = 100); } translate([0,0,-1.5]) cylinder(3,27,27); I'm not sure if the union is necessary, I didn't try without it. This is a quick and dirty acceptable versionby andy.wpg - OpenSCAD
Thanks for that, I’ll give it a try in the morning. I did do a search for rotate extrude, but nothing showed up in the results.by andy.wpg - OpenSCAD
I have hit the wall on this one, and you’re going to laugh, because it’s probably so simple. I need to make a disc 35mm across, 3mm thick, with a rounded edge. To that end, I was able to create the points to make a polygon rectangle 17.5 X, 3mm Y and that extrudes fine into a disc 35mm across with square edges. The problem comes in when I try to create a circle at the end, 1.5mm radius, centeby andy.wpg - OpenSCAD
Quoteenif I tried to understand what exactly you are trying to build... Is it something like this? If so, I built it as the intersection of a cube with the difference of 2 cylinders as follows: module cylbezel( l, // length h, // height w, // thickness a // arch rise (y-offset in center, >0) ){ //compute radius from arch rise r=l*l/(8*a)+a/2; intersection(){by andy.wpg - OpenSCAD
I am attempting to make a bezel with HDglass. I know that it will never be optic clear, but some tests with the 10W leds I will be using shows the light transmission is perfect for what I need. The bezel is 100mm long (x axis), 50mm high (z axis) and 0.8mm thick (y axis). What I would like to do is bend the face of it. So, the x-axis would be curved a bit around the z axis. I understand how toby andy.wpg - OpenSCAD
Thanks guys! That helped a LOT! Now I have somewhere to start. BTW, please don't laugh too hard at my programming! I'm self-taught and math and I aren't really the best of friends......but I'm learning!by andy.wpg - OpenSCAD
I have created a couple of OpenSCAD designs for project boxes for my electronics designs. One creates the back box (standoffs, openings, lid screw posts, etc) based on a module call with some dimensions in it. The other creates the lid for the box, and there are modules for an LCD window, button and LED holes, etc. The lid is my problem. It designs a nice lid, except for the top edge. I wouldby andy.wpg - OpenSCAD
Quoteo_lampe How about that? Perfect! You have no idea how much I messed around trying to achieve that! I should mention, while I have many technical talents, math and I don't get along very well, so sometimes, SCAD is a challenge for me. Thanks againby andy.wpg - OpenSCAD
I'm making an end cap that goes in the end of a carbon fiber tube with an outside diameter of 12mm and an inside diameter of 10mm. To that end, I created the following: difference () { union () { cylinder(13,3,3,$fn=100); //main cylinder cylinder(3,6,6,$fn=100); //disk on end translate([0,0,5]) cylinder(1,5,5,$fn=100); //fin 1 translate([0,0,7]) cylinder(1,5by andy.wpg - OpenSCAD
You Sir, build nice stuff! Well done!by andy.wpg - Look what I made!
Quotethe_digital_dentist I used to replace old electrolytic caps by taking the guts out of the old ones and installing newer, more modern, always smaller caps of equal or greater voltage and capacitance ratings. I also replaced all paper/foil/wax capacitors with polyester caps and then rewired with teflon insulated wire. I'm sorta off topic for this thread, but have a look at the latest issby andy.wpg - Look what I made!
Make sure that you take into account the thickness of the copper when you are calculating this. If the calculations are based on 2oz copper and you get a board with 1oz copper on it, all the calculations go out the window! Ask me how I know this.......by andy.wpg - General
Quotevreihen If you put the sand into a styrofoam bucket and leave it on top of the printer/enclosure, it will dump itself onto the fire in he presence of flames hot enough to melt the styrofoam. We used to have styrofoam suspended ceiling tiles at work with the fire sprinklers above them, and it was allowed by fire code because the tiles would melt and drop out in the event of a fire before itby andy.wpg - Safety & Best Practices
I use OSH Park. But I'm not doing production level runs. I only need a few at a time. You could always send him an email, because I know he starts giving discounts after a certain number of square inches.by andy.wpg - General
Quotedave3d I don't think ordinary plasterboard is a suitable material. It is just made from gypsum on a canvas backing. It's not, but there IS fire-rated gypsum board. Here's an example:by andy.wpg - Safety & Best Practices
Quotetray Seems like mounting a smoke detector near the printer is a good idea. The two major groups are photoelectric and ionization. Has anyone looked into which type is better for this use, in terms of both sensitivity and false alarms? Does it differ for ABS vs PLA vs Nylon? I haven't tried burning any of them. Or a printer. Haven't tried it with filament, but a photo smoke is FAR less likelby andy.wpg - Safety & Best Practices
And yet, when I exported the orginal suggestion as an STL and loaded it into Repetier Host, it seemed to work. I sliced it with Slic3r and went through the layers and all looked ok. What am I missing here?by andy.wpg - OpenSCAD
Thanks for that! It worked. I think I just need to figure out the order that things go in. It will get easier as time goes on.by andy.wpg - OpenSCAD
I am new to this, so please be patient.... I would like to create a hollow 1" sphere with a 1mm hole running through it (think: bobber to attach the boat keys to). To that end, I have gotten this far: (The CODE tags seem to edit the formatting a bit - sorry) union () { difference () { sphere(12.7,$fn=100,center=true); cylinder(55,.75,.75,$fn=100,center=true); } difference (by andy.wpg - OpenSCAD
QuoteHazer And all of this does not cover the electrical fire potential. I have seen some people place extra thermal cutoffs around the electronics, but they would not trip out until the fire has already ignited. So what does cutting power do when the flames are already there? I guess the point (as I see it) is that, even though a fire has started, removing the power removes any further heat buiby andy.wpg - Safety & Best Practices
I'm currently building my first printer, and this (as well as other, similar threads) has scared the C**P out of me! I am a fire alarm technician, and in the excitement of building my printer, I forgot that these are experimental devices, not ULC (Canada) or CSA listed. My plans for fire safety are as follows: 1) Thermal cutouts near the hot end, near the heat bed heater, and above the power sby andy.wpg - Safety & Best Practices
Quotesalsabettis Anyone have popcorn? This is good. I've got my feet up, my bowl of popcorn at hand - just waiting for the next salvo......by andy.wpg - General