tag:blogger.com,1999:blog-401164737462963207.post8299138220975254319..comments2024-03-28T00:14:10.834-07:00Comments on Ben Krasnow: Design and build a spin coaterBen Krasnowhttp://www.blogger.com/profile/04234629396863486242noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-401164737462963207.post-20414017276839864622019-08-08T22:53:24.359-07:002019-08-08T22:53:24.359-07:00Hey,I thought this might be an interesting idea. D...Hey,I thought this might be an interesting idea. Do you think it'd be possible to replace the lamp of a projector with a uv light, and focus the image onto an object with photo resist to do your own micron level lithographyAnonymoushttps://www.blogger.com/profile/14486759135627536980noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-32888371803956122742017-12-30T09:54:50.758-08:002017-12-30T09:54:50.758-08:00Very nice build & presentation. Two things ar...Very nice build & presentation. Two things are not quite clear to me:<br />1. Is the speed on the display real (i.e. somehow the ESC transmits the info to the Arduino over IC2?) or just based on calibration, like you used that tachometer pictured on the right at the beginning of the video and fit a line to the values the Arduino sent vs. the measured RPM's?<br />2. At 16:27 you say getting a motor that goes relatively slowly is tricky. I have the same problem (and I'm trying to build a spin coater). Did you do something on the software side to fix the problem, or buy a lower kV motor?<br />best regards,<br />randyAnonymoushttps://www.blogger.com/profile/03846884846160718850noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-39292763571036613202017-10-11T07:30:42.672-07:002017-10-11T07:30:42.672-07:00Try this one - looks like the topics page was rena...Try this one - looks like the topics page was renamed.<br /><br />http://discuss.bluerobotics.com/t/blueesc-firmware-compatible-with-afro-slim-20a-esc/89/2<br />- Elliothttps://www.blogger.com/profile/03674990216309783688noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-35042988332373667042017-07-02T23:20:27.787-07:002017-07-02T23:20:27.787-07:00Hi Ben, could you please give the firmware link wh...Hi Ben, could you please give the firmware link which you had used.. I cant find it using above link... (page can not found).Anonymoushttps://www.blogger.com/profile/17243920556300543770noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-8228941646739005912017-04-18T17:08:40.832-07:002017-04-18T17:08:40.832-07:00Hi Ben, nice project. Could you please provide spe...Hi Ben, nice project. Could you please provide specs on the motor and esc used?<br /><br />Best regards,<br /><br />TroyAnonymoushttps://www.blogger.com/profile/11517998696412236342noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-38845429331671599122016-08-06T09:07:36.745-07:002016-08-06T09:07:36.745-07:00Hey Ben, very nice project. I will try to replicat...Hey Ben, very nice project. I will try to replicate, so would you mind to give the specs of the stuff you used... like the motor? Regards,Anonymoushttps://www.blogger.com/profile/10036279659759940552noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-60151987545825225112016-05-19T19:54:09.106-07:002016-05-19T19:54:09.106-07:00There are a lot of different methods, but this is ...There are a lot of different methods, but this is generally what I do: Set P=I=D=0, then increase P until the system oscillates when given a step change in a reasonable range. Set P to 70% of this value. Then, increase I until the system oscillates, then set to 70% of this value. Then, increase D until overshoot is reasonable or eliminated.Ben Krasnowhttps://www.blogger.com/profile/04234629396863486242noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-66611064372239986882016-05-18T19:44:17.038-07:002016-05-18T19:44:17.038-07:00would you mind explaining what the method is to tu...would you mind explaining what the method is to tune the PID for say, a different motor?dreggoryhttps://www.blogger.com/profile/14801871402523601240noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-43715766849031049842016-03-02T01:47:52.290-08:002016-03-02T01:47:52.290-08:00Hello, thanks for all your works.
I'm a french...Hello, thanks for all your works.<br />I'm a french student on enginering and I actually work about liquid lens. <br />I have saw your video and researchs, and I would like to exchange with you to deep my project. <br />I would be very thankful and happy. I give you my email : fiorucci.carla06@gmail.com (I don't find yours)<br />Thank you. Carla Fiorucci Carla-Louhttps://www.blogger.com/profile/04049424772555227521noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-52106029389037090652016-02-23T02:22:16.467-08:002016-02-23T02:22:16.467-08:00I needed something like this years ago. I was tryi...I needed something like this years ago. I was trying to make my own magnetic stirrer and used a muffin fan with a magnetic on it that was popular on the web. Ian Randomhttps://www.blogger.com/profile/10120228647264344532noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-33945115700553809032016-02-23T01:36:12.487-08:002016-02-23T01:36:12.487-08:00Thanks for this, very timely for me as I was just ...Thanks for this, very timely for me as I was just about to do a similar speed controller for a my wolfgang spindle for my PCB CNC. This has given me some great ideas.Stephen Eatonhttps://www.blogger.com/profile/16305392365946872382noreply@blogger.com