Search found 226 matches

by Nigel K Tolley
Fri Jun 06, 2014 8:01 pm
Forum: Build Logs
Topic: NKT's plasma plan
Replies: 5
Views: 1330

Re: NKT's plasma plan

In a change of plans I'm now buying one from another forum user that is surplus to requirement. So I'll see how that goes first, and put the plan into action on that. However we will likely want a dedicated CNC machine for light cutting as well as the plasma machine, so this is just on hold. I'll li...
by Nigel K Tolley
Fri Jun 06, 2014 7:49 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Laser for Shapeoko 2? What do I need to know?
Replies: 4
Views: 1780

Re: Laser for Shapeoko 2? What do I need to know?

Good summary. Also zinc selenide is highly toxic. Wear gloves! 3rd type is IR diode laser at about 1000nm (1 micron). Rare and really quite dangerous, in the same way as the blue diode is, except invisible! So you don't even know you are blinding yourself. Avoid. Blue diodes are around 400nm and CO2...
by Nigel K Tolley
Fri Jun 06, 2014 3:04 pm
Forum: For Sale
Topic: For Sale V1 Kit (no rotary tool) assembled SOLD
Replies: 22
Views: 3000

** SOLD PENDING FUNDS ** Re: For Sale V1 Kit assembled

Barring insane shipping costs, I've now bought this.

I can then save up for the second one. :-)

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by Nigel K Tolley
Thu Jun 05, 2014 11:18 pm
Forum: GRBL
Topic: Lose Z zero setting during Mill Oper.
Replies: 7
Views: 1263

Re: Lose Z zero setting during Mill Oper.

(Pure) PTFE spray, perhaps?

Works on nearly everything close toleranced that you don't want to stick.

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by Nigel K Tolley
Thu Jun 05, 2014 11:15 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Vinyl cutting with a Silhouette rachet blade!
Replies: 16
Views: 13046

Re: Vinyl cutting with a Silhouette rachet blade!

It could just be an issue with the knife not being in the best position. It has to be almost perfectly 'on axis'. The little Sillohette Studio cutter I've got, the knife looks like it is perfectly aligned, though I know it must be fractionally behind the dragging point so it can be pivoted by the xy...
by Nigel K Tolley
Thu Jun 05, 2014 6:14 am
Forum: Member Projects
Topic: Holy Coaster Batman!
Replies: 19
Views: 3456

Re: Holy Coaster Batman!

Actually, having gone to look, they no longer have it on their website! Shame.
I'll ask around though. It's the type of thing locksmiths with shops have for their engraver machines.

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by Nigel K Tolley
Thu Jun 05, 2014 6:06 am
Forum: Member Projects
Topic: Holy Coaster Batman!
Replies: 19
Views: 3456

Re: Holy Coaster Batman!

Is yours a stock spindle? What diameter bit are you using, hanselcj?

Good results anyway.

RobCee, I've got a source for that stuff in acrylic, trade only though. I'll send you a PM later.

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by Nigel K Tolley
Thu Jun 05, 2014 6:00 am
Forum: Assembly
Topic: Dual Y axis sticks at higher speeds.
Replies: 3
Views: 512

Re: Dual Y axis sticks at higher speeds.

As steps per second increase the stepper torque decreases. This means they are great at holding things still, and powerful at low speeds, but get less powerful at higher speeds. All that is happening is that you are trying to run it faster than the torque available. How fast is 'fast' anyway? If it ...
by Nigel K Tolley
Fri May 30, 2014 7:46 pm
Forum: For Sale
Topic: For Sale V1 Kit (no rotary tool) assembled SOLD
Replies: 22
Views: 3000

Re: For Sale V1 Kit (no rotary tool) assembled $300 OBO

What does obo mean?

I'd snap it up if there was some way to figure out shipping to the UK. Do we know what it weighs?

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by Nigel K Tolley
Thu May 29, 2014 9:17 pm
Forum: Build Logs
Topic: NKT's plasma plan
Replies: 5
Views: 1330

Re: NKT's plasma plan

Bought myself a forming M5 tap today. Cost £10 + VAT. I already have a set of 0.1mm stepped drill bits so I'll need to grab the 4.6mm bit to tap the ends of the rails. (I also got a packet of M4x16mm grubscrews and a similar tap to suit for a smaller project. That cost the same. There are also sligh...