Show all posts by user

Re: Problem with slow feed moves stuffering on my 3DR Delta - 9 years ago

You can also try this workaround to make the drv's to behave.

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 10 years ago

Wow Andrea, congratulations and welcome! It's good that you say about the stuttering, I also had noticed that, but I hadn't tracked it down. I'll try what you suggest, and maybe we should start talking about a more powerful platform... About the J-Head, I had the same problems, a lot of force required to push the 1.75mm filament. I also had some leakage problems on the J-Head which I managed to

by payala - Delta Machines

Re: 3DR Delta printer and Melzi V2.0 - 10 years ago

I currently don't know because I'm looking at this from the phone, but this got me thinking; shouldn't we put information like this, together with slic3r config, calibration, etc in a wiki page so everyone can profit from it? does anybody know where would be the best place?

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 10 years ago

@ekaggrat Yes, but the problem is that when you do it like that (with the effector centered) errors in one carriage can compensate errors from other carriages, becoming into x and/or y errors and not being very visible in a z measurement. That is why it is a better method to to that with the effector close to each tower, so you isolate each carriage's movement. About the formula, of course you c

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 10 years ago

@ekaggrat about 1. Have you calibrated the steps/mm of each carriage? I usually calibrate it by measuring how much the carriage is lowered with a digital caliper with the effector as close as possible to each tower. Close to a tower, z movement error is due to that tower's carriage movement error, errors on other carriage movements create x and y errors, but not z errors.

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

@zacbot So, here you have the video, excuse the poor quality, as I said I don't have much time for these things. there are no big differences with Richrap's 3DR. The carriages are different because I assembled the spectra line as RichRap suggested, but then the spectra lines didn't run straight. I should have tied the line on the right rather than on the left, but I also wanted to modify the carr

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

@hercek I've been trying today with the manual method, going through the notebook went well and things were converging up to a point where I started to oscillate. This would be fine, but the errors were still very high, so, probably what you said about the hand measurements is happening here. But it was nice to go through the notebook and see your approach on the optimization problem. I have do

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

@hercek So yesterday I had some time to tinker a bit with the printer and the maxima notebook you suggested. I modified m665 to get tower position corrections and store them to eeprom. But I still dont have z probe, so iterations are going slow. Am I right that the process is iterative? You have to measure, feed the notebook with measured data, get new params, measure and start again? Anyway, t

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

Wow guys! thanks for that feedback! All very good ideas, especially, the idea about bad z tower position looks really good. I'm at work right now, so I can't look into more details. But I will do when I get home, and you've given me some good ideas to try out, and some measurements to make. Regarding math, C and measuring capability, it should be no problem in theory... I have a home workshop,

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

Hi Zacbot, thanks for your answer, but I already did that. It is step number 4 in the sequence I described. Right now I'm having correct height in points A, B, C, and also point D the center of the build area. The problem occurs at midpoint between A and B, between B and C, between C and A.

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

Hi zacbot, thanks,. well, I have done what I said in the last post: "I have perfectly calibrated steps/mm and smooth rod radius. So I get the printer to accurately go to 0.1mm over the surface near each of the three towers and in the center of the build plate." Which is what I understand for calibrating the printer, To make it clearer I have done this: Measured diagonal rod lengths and used

by payala - Delta Machines

Re: RepRap 3DR Delta printer Released - 11 years ago

Hi all, I am having a problem to get my 3DR printing flat. I have searched but never found something similar. I have perfectly calibrated steps/mm and smooth rod radius. So I get the printer to accurately go to 0.1mm over the surface near each of the three towers and in the center of the build plate. But, I still get this distortion: As you see, the print is correct height near the towers (

by payala - Delta Machines

Re: Sparse infill - 11 years ago

Thanks ShaunD! I was having the same problem, and since I am also new to this I also thought I was doing something wrong. Changing that setting to 0.5mm also solved the problem on a part I was trying to make. Does anyone know if there is an issue filed for this in slic3r's git page? I have been taking a look at the issue tracker, but since I'm new, I'm not sure I'm understanding all the issues.

by payala - Slic3r