Search found 8 matches

by Howaredug
Fri Nov 04, 2016 1:29 am
Forum: General Laser machine discussion
Topic: Newbie-Problem of engraving edge!
Replies: 0
Views: 3558

Newbie-Problem of engraving edge!

Hello, first of all I will apreciate your Help! I really don't know anything of Moshidraw or Laser engraving, and I bought a cheap laser engraving machine from ebay. I'm pretty happy with the machine that after some adjustment is working. With Acrilic and wood work perfect, but I need to engrave &qu...
by Howaredug
Thu Nov 03, 2016 8:30 am
Forum: General Laser machine discussion
Topic: Need Some Advice On Adding A Laser To A CNC Plasma Cutter
Replies: 7
Views: 7657

Re: Need Some Advice On Adding A Laser To A CNC Plasma Cutter

The main issues of monting the tube directly is weight. If you consider the water cooling you can get over the 2kg mark quite easy - this would require changes or at least tweaking of settings unless the machine itself is already a bit overpowered for the normal CNC operations. I the tube is located...
by Howaredug
Thu Nov 03, 2016 8:25 am
Forum: General Laser machine discussion
Topic: PWM frequency, power levels and 2.5D wood engravings
Replies: 3
Views: 3491

Re: PWM frequency, power levels and 2.5D wood engravings

Played around a bit more and there is a relation betwen PWM frequency and wether wood is burnt or vaporised. So for 2.5D engravings it pays off to create a mask just for the all-black areas and to vaporise them first with one or more passes. After that the maskis reversed and the other shades are do...
by Howaredug
Fri Oct 14, 2016 3:07 pm
Forum: General Laser machine discussion
Topic: Laser cuttering on Acrylic alloy/Pvc
Replies: 2
Views: 1840

Re: Laser cuttering on Acrylic alloy/Pvc

I disagree with my brother here, I think it's similar to kydex most likely. Engraving lightly might be OK, but I personally would pass on this material.....if I did wish to pursue, I'd find something like maybe cheap unpainted steel (paint can lid maybe) and put it in the way of your exhaust....if i...
by Howaredug
Wed Nov 18, 2015 9:34 am
Forum: General Laser machine discussion
Topic: How to cut foam?
Replies: 2
Views: 3118

Re: How to cut foam?

You want to use a fast speed and air assist (for optimum performance you should look at using Nitrogen but it probably isn't necessary).
by Howaredug
Thu Nov 12, 2015 3:51 am
Forum: General Laser machine discussion
Topic: s&a cw-5200 chiller
Replies: 2
Views: 2247

Re: s&a cw-5200 chiller

Would a chiller like this work to cool glycol from 200F (93C) down to 75F (23.8C)? do you know what the GPM or Litres per minute capacity it has? Goal - cool 31 gallons of beer down as quickly as possible. Glycol would be used with a heat exchanger. :D
by Howaredug
Thu Nov 12, 2015 3:02 am
Forum: General Laser machine discussion
Topic: INTRODUCE YOURSELF
Replies: 370
Views: 2596889

Re: INTRODUCE YOURSELF

Hi all New to do DIY CNC mysef. Have some general knowlage as my brother is a goldsmith and uses a Roland MDX 40. My main interests are model truck building, hence the need for a CNC mill/router (not sure witch yet). Am fairly proficiant with Turbocad. Am a retiered earthmoving machine technician wi...