Search found 80 matches

by jsbannis
Wed Nov 21, 2012 11:06 pm
Forum: Design Ideas
Topic: Suggestions for CNC work bench/table
Replies: 6
Views: 2674

Re: Suggestions for CNC work bench/table

2x4 lumber for legs and support structure, 3/4" chipboard top with 1/4 plywood or MDF on top of that for a more smooth surface. Anchor it into the floor or wall and it won't go anywhere. Having the MDF on top of chipboard would let you use it as a spoil board and swap it when it gets chewed up.
by jsbannis
Sat Nov 03, 2012 3:25 pm
Forum: Assembly
Topic: z axis threaded rod not gripped by coupler
Replies: 10
Views: 3656

Re: z axis threaded rod not gripped by coupler

A few of the original machines had this problem as well. A bit of electrical or plumbers tape around the top will make it tight.
by jsbannis
Thu Oct 11, 2012 2:53 pm
Forum: Electronics
Topic: 24dc high voltage unit
Replies: 3
Views: 1044

Re: 24dc high voltage unit

I don't know exactly how copiers work, but this appears to be a step up transformer, probably for the bulb . Input is 24V, outputs are in the kV range. You don't want to hook that up to your stepper driver :) Given that the unit takes 24V input, there is probably another part somewhere in the copier...
by jsbannis
Tue Oct 09, 2012 4:17 pm
Forum: Build Logs
Topic: Max's Build - a comedy of errors.
Replies: 31
Views: 7083

Re: Max's Build - a comedy of errors.

I am not advocating this in any way, but if you think the dry solder joint is on the motherboard, and you aren't particularly attached to it, you could try baking it (as in putting it in an oven :)). I had a 8800 gtx card that I did this with several times before it finally died for good. It'd be a ...
by jsbannis
Tue Oct 02, 2012 9:25 pm
Forum: Discussion
Topic: Makerbot and Thingiverse
Replies: 7
Views: 1841

Re: Makerbot and Thingiverse

if you are in the market for a 3d printer how could you choose that over this? Some reasons not to go with (Form1) SL over FDM: The build platform is smaller than FDM machines The printer itself is more expensive than (similarly sized) FDM printers The resin is quite expensive (they quote $149 per ...
by jsbannis
Wed Sep 26, 2012 2:19 pm
Forum: Discussion
Topic: EasyMaker: An hybrid mill and printer robot
Replies: 1
Views: 730

Re: EasyMaker: An hybrid mill and printer robot

That Z axis setup looks familiar ;) It's interesting that he uses rods and pillow block bearings instead of Makerslide for the X and Y axes. Looking at the BOM that seems to be where a lot of the extra expense is.
by jsbannis
Tue Sep 25, 2012 9:55 pm
Forum: LinuxCNC
Topic: Best Computer for LinuxCNC and Connecting to Stepper Drivers
Replies: 11
Views: 10179

Re: Best Computer for LinuxCNC and Connecting to Stepper Dri

I know that USB->Parallel adapters are almost always rubbish, but I'm not certain why you need a PC with the port on the motherboard? Monoprice has PCI cards with either single or double parallel ports for < $10 . If you already have a desktop computer you could use, that's lacking a port, you could...
by jsbannis
Fri Sep 21, 2012 11:05 pm
Forum: 3D Printing
Topic: Stepper shield boards
Replies: 1
Views: 980

Re: Stepper shield boards

I doubt anything on the stepper shield would stop you, as you said it has 4 axes. However grbl only supports 3 axes as of now, and I think most 3D printing firmware requires the mega, so you might not be able to use the uno.
by jsbannis
Thu Sep 20, 2012 4:26 pm
Forum: Member Projects
Topic: A site like Thingiverse for CNC CAD Models?
Replies: 16
Views: 10579

Re: A site like Thingiverse for CNC CAD Models?

Interesting idea of using a GitHub to host 3D printing files with a template to make the main page look nice, could use a similar one for milling ... -projects/ (recently featured on HaD)
by jsbannis
Wed Sep 19, 2012 10:51 pm
Forum: Electronics
Topic: Inventables wiring
Replies: 9
Views: 3064

Re: Inventables wiring

edwardrford wrote:(sorry for the crayon effect, I did this in MS paint....)
Never mind the wires, I'm impressed by how well you drew the rest of the machine :P