Nice little dew controller kit

[mickw]

You could just strip off a lump of old flex

[Mike]

Flexible speaker wire would also work.

[Mike]

I'm wondering if it would be any good for controlling a hot wire cutter.

[MarkS]

I'm wondering if it would be any good for controlling a hot wire cutter.

It'll be fine as long as the current is within the specified limit.

[Ian]

Might have stability issues. Depending on the design the load forms part of the control. The wire won't be significantly inductive, but it's resistance may be too low. It'd be worth taking a close look at the spec sheet.

[PhilB]

For that price I've got to have a go. Placed an order with Rapid today. I'll post the results when available.

[PhilB]

Kit arrived yesterday.

Today I went from this:



to this:



to this:



in just under an hour.

Nice simple and easy to build kit. All I need to do now is build some heaters for the 'scope!

(Edit: Added links to full-sized images -- Rick)

[Mike]

Could you make those images a bit smaller please they are taking up way too much screen space.

[Rick]

Could you make those images a bit smaller please they are taking up way too much screen space.

I've added links to the full-sized imges...

[PhilB]

Could you make those images a bit smaller please they are taking up way too much screen space.

I've added links to the full-sized imges...

Thanks, Rick, I didn't know you could do that.

Mike, I included only small images as I didn't feel they were of overly great interest. My main message was that from taking the board and components out of it's mailing box to a having a soak testable board took less than an hour. I'll post some larger images of the fully completed unit in due course, if you're interested.

[MarkS]

Personally I think it's worth buying dew strips instead of making them.  They are not that expensive and you do get a nice finished product.

On the other hand I find the controllers to be overpriced - well worth the effort of making your own!

Mark

[PhilB]

Which strips are you using, Mark?

[Rick]

Thanks, Rick, I didn't know you could do that.

If you edit the relevant message you'll be able to see how it's done.

[Mike]

Mike, I included only small images as I didn't feel they were of overly great interest.

Phil, I run an electronics business, of course i'm interested.

[Rocket Pooch]

Ok, looks good, I'll put one together soon.

Marks, I really do not like spending £20-30 for a dew strip because it costs about £3 to make one for the 8" SCT and thats at Maplin prices, I also do not take them off so flexing is not an issue for me.  I beleive a cheap dew heater strip for my 8" is about £25 or so.  Have a look at the one I built last week, it only took about 30 minutes to do.

Chris