Search found 68 matches

by fasteddy
Thu May 14, 2015 1:34 pm
Forum: Design Ideas
Topic: Steel rail upgrade ideas
Replies: 6
Views: 2243

Re: Steel rail upgrade ideas

Looking at the pre-drilled specs on the PBC site, it looks like even on the (largest) 60mm rail, the pre-drilled holes would be off by 0.5mm (if using standard 2040 aluminum extrusion). 2040 requires a hole centered 10mm down, but the options for PBC are 4mm (20mm rail), 5.6mm (30mm rail) , 8mm (45m...
by fasteddy
Thu Mar 26, 2015 4:21 pm
Forum: Geckodrive
Topic: 2 Motors, 1 Controller
Replies: 8
Views: 3943

Re: 2 Motors, 1 Controller

Indeed, there seemed to be some confusion about my initial post. I figured since I was posting in the Gecko section, not much more detail was necessary, but in retrospect maybe I should've been more explicit. That's good feedback, cvoinescu, and largely the conclusion that I came to myself. I had pr...
by fasteddy
Thu Mar 05, 2015 3:26 pm
Forum: LinuxCNC
Topic: Squaring Gantry (XYYZ)
Replies: 2
Views: 2484

Squaring Gantry (XYYZ)

Has anyone had any luck using independent homing switches on a dual-Y axis to square the gantry? I've been doing research and come across a lot of references to gantrykins and stepper-gantry configs, but I can't seem to make heads or tails of how to set up the system so that it can square my Ys usin...
by fasteddy
Fri Feb 13, 2015 6:57 pm
Forum: Geckodrive
Topic: 2 Motors, 1 Controller
Replies: 8
Views: 3943

2 Motors, 1 Controller

Given that the resistors allow the controller to reduce the current to motors rated at less than 3.5A, would it be reasonable to assume that 2 nema 17s rated @ 1.7A could run in parallel off a single controller without a resistor?
by fasteddy
Wed Feb 11, 2015 4:53 pm
Forum: Electronics
Topic: Gecko section
Replies: 10
Views: 1522

Re: Gecko section

Yep. I've posted in the past about using a TB6560, which I burned out, then replaced with a TB6600, which lasted a good while - but also burned out. At this point, I've just said to hell with it and bought a G540. No questions as such. Just very happy with it.
by fasteddy
Thu Jan 15, 2015 2:34 pm
Forum: Electronics
Topic: Chinese TB6560 driver green board in aluminium enclosure
Replies: 24
Views: 4230

Re: Chinese TB6560 driver green board in aluminium enclosur

One caution about these boards with the aluminum enclosure. In my case, (TB6600, but same thing, really) the enclosure was set up to act as a heat sink. However, it's not working very efficiently. After about 20 minutes of activity, the X axis started losing steps. Simply hooking up a fan solved thi...
by fasteddy
Thu Nov 20, 2014 1:53 am
Forum: TB6560 Driver Board Help
Topic: TB6560 Stepper Driver Board
Replies: 18
Views: 19558

Re: TB6560 Stepper Driver Board

I tried using a 6560 3 axis board when I started, but I burned it out within a few hours. Since then I've switched to a TB6600 based board and have been going strong. Only issue is that the aluminum case it came with didn't do much to act as a heat sink, which was causing my x axis to lock up, so I ...
by fasteddy
Wed Oct 29, 2014 2:24 pm
Forum: Build Logs
Topic: Poll: Machine Census
Replies: 25
Views: 17201

Re: Poll: Machine Census

1350mm x 750mm - allows me to use 2' x 4' mdf as spoil board.
by fasteddy
Wed Aug 13, 2014 6:37 pm
Forum: Member Projects
Topic: German Football Team Emblem
Replies: 6
Views: 1492

Re: German Football Team Emblem

You probably used an oil-based polyurethane. They yellow over time. Next time, try a water-based poly.
by fasteddy
Thu Apr 03, 2014 2:23 am
Forum: For Sale
Topic: $150 off Misumi Promotion
Replies: 143
Views: 26125

Re: $150 off Misumi Promotion

Yeah, I have to agree akhlut. Shipping was expensive, and I had a few hiccups with my order (still waiting on confirmation of final resolution), but this was still a pretty good deal.