Denford Microrouter V4

**m_c** · 04-06-2016

It must of taken a while for you to search for that answer, but it still would not explain why the motors don't warm noticeably after being run for a while.

FWIW Denford used a few different versions of Baldor CNC controllers, but something like a Triac would of most likely used Parker stepper drivers, which from what I remember don't have any kind of current reduction. They're either enabled, or disabled, but commercial machines will rarely disable drives, as you run the risk of losing position during disable/enable.

**lucan07** · 04-06-2016

My information comes from IT support,for a while I ran a local authority IT dept including education dept and a few Denford's it was one of the recurring jobs talking numpties through the reset, which is why its remembered.

**andy_con** · 04-06-2016

for info

Triac

running ESS, PMDX126 and original digi plan drivers, it use nema 43 steppers
there is a home brew board between PMDX and digi plan driver which came with the machine

microrouter

running ESS, BOB and drivers as linked to at the start of this thread.

steppers in the microrouter

stepper drivers are running on 36v and set to 2.8amps

**m_c** · 04-06-2016

Andy, any idea what current the original drivers were set at?
Regardless, it looks like you're running the motors within their ratings, so I wouldn't worry about it too much. You could probably drop the current a little bit more if you're concerned, but it really depends on how conservatively or hard you want to run things.

One thing that I keep wondering about, is why the microstepping setting never worked how it should. If it was because the DIP switch was faulty, then the current setting could also be an issue.
It's probably not a fault, but was the step per setting a problem for all axis?
And are all the steppers getting equally warm?

Lucan, even at that, you keep posting what sound like definitive solutions without getting all the facts, which could quite easily cause more problems than they solve.