tag:blogger.com,1999:blog-23681518.post4271692026903835182..comments2023-10-14T04:05:08.546-07:00Comments on Diary of a Technocratic Anarchist: Stepping into firmwareForrest Higgshttp://www.blogger.com/profile/17208965471464716174noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-23681518.post-51748915833412469352011-07-14T07:41:53.832-07:002011-07-14T07:41:53.832-07:00LOL! I recently discovered that the PIC32 core is...LOL! I recently discovered that the PIC32 core is actually a licensed MIPS design. Back in the 1990s, MIPS cpu's running windows were used in high end workstations that required more computing power than Intel CPUs could generate.<br /><br />Similarly, the ATMega 32bit equivalent chip, I'm told, licenses an ARM core. ARM was originally used in the Apple Newton. :-)Forrest Higgshttps://www.blogger.com/profile/17208965471464716174noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-48555807410014252202011-07-14T06:26:30.355-07:002011-07-14T06:26:30.355-07:00A local electronics mag here in Australia recently...A local electronics mag here in Australia recently published a project based on PIC32, a great little controller that has a USB socket, plugs into a monitor and keyboard. Lot of potential, and it looked like a natural fit with Reprap from the moment I saw it.murdhttps://www.blogger.com/profile/10999826105132815511noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-32005564838202481382011-06-04T15:57:42.834-07:002011-06-04T15:57:42.834-07:00I believe almost anything would be improvement to ...I believe almost anything would be improvement to current reprap site so .. I keep my fingers crossed :)Bogdan Kecmanhttps://www.blogger.com/profile/09655477648123886945noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-50397680551898950932011-05-31T08:17:56.034-07:002011-05-31T08:17:56.034-07:00Great! BTW, my son is putting together a next-gen...Great! BTW, my son is putting together a next-generation website which he thinks will supplant Thingiverse for people like you. According to him it will allow Makers more flexibility to include assembly descriptions with lots of photos as well as space for STL and 3D CAD files. From what I hear it will be a bit like a miniblog for Makers to describe their inventions. :-)Forrest Higgshttps://www.blogger.com/profile/17208965471464716174noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-48019900887543741962011-05-30T17:13:31.120-07:002011-05-30T17:13:31.120-07:00I'll upload to the forum and Thingiverse once ...I'll upload to the forum and Thingiverse once I'm sure the wobble is gone :) or maybe I should start a blog...chylldhttps://www.blogger.com/profile/18065622023495534021noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-73386314774398655012011-05-30T17:05:17.387-07:002011-05-30T17:05:17.387-07:00@Chylld The downward pressure from the weight of ...@Chylld The downward pressure from the weight of the print table pretty much does away with the slack/backlash issue.<br /><br />Great to hear about your progress with the wobble reduction! When are you going to blog so the rest of us can see how to do it? :-)Forrest Higgshttps://www.blogger.com/profile/17208965471464716174noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-30760592787368936372011-05-30T16:35:34.583-07:002011-05-30T16:35:34.583-07:00I would have imagined the cables need to be extrem...I would have imagined the cables need to be extremely tight anyway, if only to counteract the slack when changing direction (e.g. after homing at the start of every print)<br /><br />My 5th prototype appears to remove 90-95% of the wobble... invisible now with normal plastic but I'm using super white to make sure it's really all gone.<br /><br />Really not sure where the remaining amount is coming from as I've totally isolated from the studding's XY wobble...chylldhttps://www.blogger.com/profile/18065622023495534021noreply@blogger.comtag:blogger.com,1999:blog-23681518.post-82384843816840625072011-05-29T23:16:00.253-07:002011-05-29T23:16:00.253-07:00Earlier today, I noted an occasional bit of slippa...Earlier today, I noted an occasional bit of slippage on the z-axis while running the NEMA 23, so I tightened the cables till they sing when plucked. It appears to have no effect on the ability of the lead screw drive's ability to move the axis. No stalling or skipped steps.Forrest Higgshttps://www.blogger.com/profile/17208965471464716174noreply@blogger.com