Quotebonmotwang Yes, the surface is supposed to be flat. The compensation I am looking for is to fix the unideal surface condition. The reason why I am bringing this up is I am building a big surface print bed, about 500x500. I am a little concerned about controlling the flatness in 0.2mm in the whole area, before and after heated. Plus the guide rail mounting surface will add to this error too.by etfrench - General
If you don't have access to the ends of the pipe, then try a layer of HDPE or other plastic under the tape Vinyl electrical tape will get soft when heated, so it wouldn't be my first choice.by etfrench - General
Quoterealthor I can't just yet wrap my head around an object with a single smooth channel, that has 2 zones, one for melting plastic and the other for heatbreak . Prometheus hot endby etfrench - General
Here's a source for honeycomb aluminum panels: p.s. I think your initial premise about the resolution of 3d printers being .1mm is wrong by an order of magnitude.by etfrench - General
I think the first question to answer is how much torque do you need? Even if you have less torque with more microsteps, is there still enough to do the job?by etfrench - General
These can be machined with diamond tools. The only problem is cost.by etfrench - General
I've done a few prints at .05mm that looked quite nice. I expect .1mm would be fine for Yoda heads.by etfrench - General
Well, I could share my delta build with you, but first you would have to make a video of building a CNC routerby etfrench - General
Home should do what you need. Here's the code Slic3r adds to the end of the gCode file: M104 S0 ; turn off temperature G28 X0 ; home X axis M84 ; disable motors In Slic3r you can also add your own custom commands at the beginning and end. Can you post a sample of your gCode?by etfrench - Delta Machines
I would expect the heat from the friction to soften them on long prints. If you have trouble with them, this technique may work for you.by etfrench - General
Most of the mini-lathes are made by Sieg, and there isn't much difference between the lower priced ones. There must be thousands of sites that detail how to improve the lathes, so treat it like a kit of parts. Little Machine Shop's machines generally have the best reviews and are usable out of the box.by etfrench - Reprappers
You should put a strongly worded message about the dangers of using acetone on PVC on the webpage.by etfrench - Delta Machines
Perhaps the emotion you showed when first denied allowed the computer to decide you were humanby etfrench - General
A silicon spatula would be a better choice for the wiper blade.by etfrench - Delta Machines
If your OS is Windows, then the builtin stencil fonts should print fine. You could always edit the characters to add small support pieces that match the other stencil supports (or whatever the name for them is).by etfrench - General
It's actually fairly common on larger CNC routers. It reduces the leadscrew whipping at higher speeds. Another interesting way to drive the carriages is with a fixed belt, similar to the way tank treads work. Here's a short thread that explains it:by etfrench - Delta Machines
Well, I'd put the lower end price closer to $50 if you can handle a soldering gun. Linear rails can be had for 0$ from your local auto repair shop that replaces shock absorbers. Linear bearings can be made from paraffin soaked hardwood and it wouldn't suprise me if they were more accurate than the cheap ones. Hot ends cost about $10 from China. Surplus stepper motors can be found in old printby etfrench - Reprappers
I think there are two choices to determine all of the lengths after deciding the print area. If you set the minimum angle of the arms to 20 degrees, do you want the effector to miss the belts or do you want the maximum print area with the shortest horizontals?by etfrench - Delta Machines
Quoteasbo M3 screws are really loose in mine, is it like that on yours too? How much side to side movement do you have when all the screws are all installed, but slightly loose? The max you could have is about .5mm or about 0.0573° over 500mm. You can make a fixture to hold the rails in place while fastening them. It just needs to register against the side of the extrusion and the side of theby etfrench - Delta Machines
Just set the layer height to .05mm and it should end up very close to specby etfrench - Reprappers
How can a dissertation be based on other peoples opinions of future events?by etfrench - Reprappers
I would say definitely no if you're only using JBWeld. Using bolts to hold the frame together would be much better.by etfrench - General
There was a typo in my last post, the effector with 14mm balls and .5in ring magnets weighs 110 grams, not 180 grams I looked at using Traxxas balls, but the ones I purchased weren't very spherical. They probably would work fine as the contact area is pretty small. I also thought about using a single ball at each corner, but it would weigh quite a bit more. This would be the perfect candidateby etfrench - Delta Machines
This will probably give you a better idea of how the effector was made: It's 6.35mm thick, but 4mm would probably be rigid enough. The aluminum portion weighs 23 grams and the ball bearings and magnets add another 160 grams. I used 30 degree extrusions from Misumi to build the corner brackets. Misumi doesn't have any pre-made connectors to use these, so I through bolted them to 2550 extrusioby etfrench - Delta Machines
Effector size also depends on whether you want the heat sink above or below the effector. If you have it above, then you need enough space to add a print cooling fan without interfering with the arms. My delta has slightly over 300mm build circle, 350mm carbon fiber arms, and heat sink above the effector. The arms are 60mm apart and the 14mm balls on the effector have a minimum distance betwby etfrench - Delta Machines
Even with the heat sink above the effector, I think you'll need the fan. The first fan I had failed during a print and the heat sink got quite hot.by etfrench - Delta Machines
Make sure you're working in a well ventilated area when using Acetone. I'd recommend also doing an online search for other safeguards for working with Acetone.by etfrench - General