Search found 410 matches

by bharbour
Thu Nov 09, 2017 3:25 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Cheap Chinese Laser Question...
Replies: 10
Views: 1047

Re: Cheap Chinese Laser Question...

I found a really cool stand alone circuit based on a 555 timer that is a variable frequency PWM oscillator. The timer switches a MOSFET on and off so that it can handle higher currents...like in switching a laser on and off.

https://www.instructables.com/id/555-Ti ... ontroller/
by bharbour
Thu Nov 09, 2017 2:00 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Cheap Chinese Laser Question...
Replies: 10
Views: 1047

Re: Cheap Chinese Laser Question...

"perhaps have your Mom"...LOL. I saw your same response somewhere else on the forum, and I get your gist. You assume no one's searching for information and it probably pisses you off. You could be right, and you could be wrong. You're an interesting fellow for sure. Let me ask a question of you...wh...
by bharbour
Wed Nov 08, 2017 6:01 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Cheap Chinese Laser Question...
Replies: 10
Views: 1047

Cheap Chinese Laser Question...

...I bought a cheapie 2.5watt 450nm laser off of eBay. The specs for the driver says that it'll operate from 0 to 20Khz...TTL I'm assuming. I've got an Arduino Uno running GRBL 0.9j on my CNC machine and I'd like to vary the output of the laser from barely on (for focusing) to full power. I've been ...
by bharbour
Thu May 25, 2017 5:09 pm
Forum: Member Projects
Topic: Train Tracks
Replies: 5
Views: 1702

Re: Train Tracks

That is so cool!!
by bharbour
Thu May 25, 2017 5:07 pm
Forum: Member Projects
Topic: Pegasus
Replies: 2
Views: 1173

Re: Pegasus

Nice!!!
by bharbour
Mon Mar 27, 2017 1:18 pm
Forum: Computing Hardware
Topic: $78.00 10" Windows 10 tablet at Walmart
Replies: 15
Views: 4435

Re: $78.00 10" Windows 10 tablet at Walmart

Mine's been working great too. Got it running Windows 10 and haven't had many issues with it at all.
by bharbour
Tue Jan 17, 2017 9:29 pm
Forum: Trim Routers
Topic: What are the dimensions of Makita rt0700/01 etc
Replies: 6
Views: 2167

Re: What are the dimensions of Makita rt0700/01 etc

Thanks Will!
WillAdams wrote:Missed that one --- will try to remember to measure it when I get home.
by bharbour
Tue Jan 17, 2017 3:53 pm
Forum: Trim Routers
Topic: What are the dimensions of Makita rt0700/01 etc
Replies: 6
Views: 2167

Re: What are the dimensions of Makita rt0700/01 etc

What about the "A" measurement??
by bharbour
Fri Jan 13, 2017 2:50 pm
Forum: Software - CAD, CAM, Workflow Help
Topic: Fusion 360
Replies: 8
Views: 1142

Re: Fusion 360

I'm learning Fusion 360 and have a few question regarding the 3D pocket clearing settings. I see somethings I'm not familiar with like Surface Speed, Feed Per Tooth, Lead-In Feedrate, Lead-Out Feedrate Ramp Feedrate, Feed per Revolution. I've been using MakerCAM and haven't seen these settings. Can ...
by bharbour
Wed Dec 14, 2016 2:44 pm
Forum: Mini Spindles - Purchased
Topic: Build log: 800W Chinese spindle for Shapeoko 3
Replies: 18
Views: 9553

Re: Build log: 800W Chinese spindle for Shapeoko 3

Is your spindle 110v from the wall or 220v?