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Hey guys,

this has been asked before I know, but does anyone have a good source of G10/FR4 sheeting in recent history?

Most overseas places want to sell you CNC machined pieces from DXFs which...

There are plenty out there. Probably like mine you just set and forget. There isn't much to them.

-A.

Hi guys, been a while.

Since my site has broken and I badly needed to update the PICStep project page I thought I'd take the opportunity to also clean up the firmware and implement some of the...

I've gotten a few donations from people (thanks! you know who you are), but I got a lot more nasty people who'd rather be demanding and unappreciative than civil.

Makes giving stuff away for the...

I thought someone else might find the perspex case I made for my Sparkfun Bus Pirate handy. It's made in three pieces and is designed to allow for small differences in the manufacture of the board.
...

The one with mine is definantly the Johnson because it's stamped into the rear of the motor can. It's a HVDC motor because it's got a communtated armature and permenant magnets, so it's a big DC...

So 45W would be it's maximum. Also if I'm reading this right, I should be able to control this with a simple PWM DC supply rather than using 110VAC. It looks like it has a bridge rectifier built into...

Probe the surface first to build up an offset mesh of the Z for each X/Y position, then you could script something up to adjust the Z axis offset for the given X/Y position. Hopefully then the Z cut...

You can get IGUS fairly easily, but I wouldn't call it cheap!

-A.

I just got my brand new Wolfgang spindle and must say, very impressed with the runout of the actual spindle, bearings get a little warm but don't feel crunchy like people in this thread, but! I took...

Hey there, I'm very flattered you've made my driver with such flare and still left my name on your artwork. Your set up so far looks awesome! Much better than my original mark I drivers I still use...

You want to run in 1/4 step (or smaller) mode to get the best from your motors. You need to adjust the step sizes in Mach to accommodate the difference in step sizes.

So for example lets say 10...

Hi WidgitMaster, love your work so far. But I must say mounting that block with the recess on top will be a nightmare to clean when it's full of swarf and cruft (even if you have guards to go on...

Yeah, I've got an old style one that I drove with my PICStep drivers a few years ago. It was quite strong but it would really only be suitable for very light engraving.
...

Hello all,

Sorry I've been so inactive lately, but I've been going through a pretty tough time at home. Things are all upside down and inside out, but I'm finally starting to come up for air. I...

I'll have a look at that, the defines are probably hiding something they're not suppose too. Since I never use the non-timeout version I don't really test it to fully



It's done using the 16...

maybe http://www.oatleyelectronics.com/

Ooo really? The pins are the same on both versions, the firmware is universal. Perhaps something else is broken.. :(

Heat is generated with switching so I'd assume with the higher switching rates...

None at all. Nice work!

Alan.

Whatever... if I was designing this for an orbital satelite I might be worried. It's for homebrew CNC machines and the like, it's really not *that* important, any decent CAM software should take care...

At 20MHz the entire lookup and step decisions are done in ~65 instructions which equates to 0.0124 milliseconds per step (200ns per instruction). I could probably shave 10-15 instructions off, but I...

PICStep now has a V2.0 firmware available.

It has a new 1/16 mode (1/16, 1/8, 1/4 and 1/2, lost full), a 5 1/2 minute auto shutdown and the direction line bug fix.

The motor should sound...

Fixed.

PICStep now has a V2.0 firmware available.

It has a new 1/16 mode (1/16, 1/8, 1/4 and 1/2, lost full), a 5 1/2 minute auto shutdown and the direction line bug fix.

The motor should...

It's the timing of the direction line switching from forward to reverse at zero degrees it would seem. If the direction switch is after the zero point the "notch" disappears and the motor has the...

First I'll look at the potato, banana banana. Looks like red smells green and the dish ran away with the spoon...

Thanks I'll figure it out faster than these posts I think. Viva the Czech Republic...

I doubt he will want to tell you if his firmware costs 15 euro. It's probably something to do with the DAC values not being linear (or the same) at either side of the centre. The Cos-Sin curves are...

I receive nearly 600 emails everyday, I do not reply to everyone because I wouldn't get anything else done. Also if the english is particularly hard to comprehend I'm even less likely to respond.
...

I've not seen this bug of which you speak, how are you coming to the conclusion that the speed difference is the FW and not the multitude of other variables between the IO pins of the PIC and the...

K'eh? PICStep has been sucessfully used by hundreds of people around the world, what bug are you talking about? I'm guessing FW==firmware, what does SW equal? SW==software maybe?

If english isn't...

That was done purely for people who wanted to make dual layer boards with the gerber files. I used normal old bell wire for my jumpers in most cases, the 3 or so amps the LMD's can draw is more than...