Hi all, I have a mini-mill, and the ball screw is down the front. I have seen the version where the nut is held in place and spun, and the screw traverses up...
This list is for the discussion of CNC and related topics including CAD, CAM, EDM, & DRO. The list focuses on the construction of home shop CNC machines along...
CAD_CAM_EDM_DRO@yahoo...
Jan 1, 2007 2:29 pm
91138
Here's one of those rare occasions where somebody actually wants your opinion. Background: I've been producing driver/breakout kits in modular form because I...
What is the advantage of your modular system over an all-in-one board such as the HobbyCNC? I have the HobbyCNC controller and it sure seems to work good for...
... because ... control ... rather buy ... Modular. I have a friend who has a HobbyCNC board. fried one chip. the cost of repair/replacement was higher than...
In a message dated 1/1/2007 12:07:49 P.M. Eastern Standard Time, mattison20@... writes: Here's one of those rare occasions where somebody actually wants...
cnc002@...
Jan 1, 2007 11:25 pm
91142
Cabin Fever expo is just around the corner! This will be the first year (keep fingers crossed!) that I have been able to make it! I am bringin' the...
Here's another one I've had my eye on: http://www.splinescan.co.uk/ It uses a laser pointer to generate a fan of light. That illuminates an object on a...
Sebastien Bailard
penguin@...
Jan 2, 2007 5:59 am
91144
Its getting close to time for Cabin Fever Expo, and I think we are going to have a bigger than ever show of CNC activity. For several years a few guys have...
... Laser beams don't contain speckle as such it is just an interference phenomenon (for the discussion's benefit not your's Jon). In the same way as you get...
Does anyone know if a standard LCD screen can be used with UV light. The idea being that you create a strong UV backlight, then have the LCD screen acting as a...
OK it seems LCDs are opaque to UV but some people have used optical up conversion to get into the UV domain, my guess is that is costs money! Graham...
... No. The rotation angle of light by the crystal is wavelength specific. Probably LCDs don't pass ANY UV, anyway, unless you are talking very near UV. ... ...
... To correct myself the system linked to uses a Hg-Xe lamp with a large amount of output at 464nm. Leds at this wavelength are also available. Graham...
... it >has to absorb the entire 1000 W in the polarizers! Poof! The question becomes how much power does the hardening of the resin require? Assuming the...
I completed my home made power draw bar and attached it to my mill CNC converted mill. For those who have never seen one or would like to know how it fit on a...
... They are basically unavailable. TI holds an impressive, all-encompassing US patent that has, I believe, kept all other makes of similar design off the US ...
... I think it's probably doable, if not already done, but I favor a FDM (hot-glue gun or syringe-squeezer) type fabber, just because you have a much wider ...
Sebastien Bailard
penguin@...
Jan 4, 2007 4:17 am
91156
Vince, Thank you for the video. I watched it 3 times :) What did you build for the bridge across the range lever at the top of the head, and how did you...
... comfortable ... Well its not really a question of which is best but it is a question of which is suited to a certain task. What appeals to me in this...
So with the right resin it might be possible to use an LCD and an appropriate none UV light source. But there are a lot of ifs and buts. Anyway it may...
Jon -- you are quite correct, however at IMTS '06 I saw an excellent proto of a DLP and UV lamp hybrid for exactly this type of prototyping. Tiny booth, showed...
Ted, please tell us more about your printers (change thread title). I know that driving a print head is pretty simple but it does seem your method does away...
I recently finished my first homebuilt router pouter project, and was doing some trial runs for a while now, just figuring out the best software solution etc....
The bridge is a 3"x6.5"x3/8" piece held off the top of the mill by a couple of aluminum blocks. The mechanism is just a 3/8" butterfly impact wrench. I took...
Johann, What type of bits are you using, hss, carbide, carbide tip, diameter, number of flutes, up down straight? And what depth are you cutting for a given...
When you talking speed is it how many RPM's your tool is spinning or how fast your table is moving? How deep are you cutting? Some plastics will melt in stead...
Johan, Along with all the other questions, let us know what spindle you are using? Is it a router, a dremel, etc. Seeing as you are breaking tools I am...
