PM-833TV drawbar tightening solution....

Tipton1965 said:
I was actually using a Rigid cordless impact gun to tighten and loosen the drawbar before. It worked quite well. I know another member here just has a small air impact wrench hanging right above his machine for this task.
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This is what I do... hang a butterfly air impact over the machine and it works very well (suggestion of another forum member). I was really disappointed BEFORE I bought the machine knowing that there wasn't a method to effectively tighten the drawbar with a wrench, but figured the impact would do the trick. It actually works extremely well and there's no way I'd use a wrench now. I wouldn't mind having the collar + wrench that PM has now (wonder if they'll send me one if I ask?) for those times when I can't quite get a bit out of the chuck and need something to stop the spindle.

The lack of a method to tighten the drawbar with a wrench and that the machine's VFD box fan stays on 100% of the time as long as it's plugged in are both poor design decisions in my opinion. I wasn't expecting this from a "high quality" Taiwanese machine.
 
cday2021 said:
... and that the machine's VFD box fan stays on 100% of the time as long as it's plugged in are both poor design decisions in my opinion. I wasn't expecting this from a "high quality" Taiwanese machine.
Click to expand...
For improving the noise performance of PCs in the late 80's I installed a thermostatic fan speed control device inside the PC power supply that based on the outgoing air temperature will adjust the fan speed. This is now standard feature in any computer.

I looked up for similar devices and I found the following 2 on eBay:

for 2 pin connector - https://www.ebay.com/itm/383949048898

for 4 pin connector - https://www.ebay.com/itm/382653081487

These might help with the VFD fan needlessly running at full speed .

Ariel
 
cday2021 said:
the machine's VFD box fan stays on 100% of the time as long as it's plugged in
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Some owners have wired in a switch to just switch the machine off when not in use. I just flip the breaker off since it's right behind me and the mill is the only thing on that circuit.
switch.jpg
 
ahazi said:
For improving the noise performance of PCs in the late 80's I installed a thermostatic fan speed control device inside the PC power supply that based on the outgoing air temperature will adjust the fan speed. This is now standard feature in any computer.

I looked up for similar devices and I found the following 2 on eBay:

for 2 pin connector - https://www.ebay.com/itm/383949048898

for 4 pin connector - https://www.ebay.com/itm/382653081487

These might help with the VFD fan needlessly running at full speed .

Ariel
Click to expand...
Is there 12v DC easily accessible on the VFD board?
cday2021 said:
The lack of a method to tighten the drawbar with a wrench and that the machine's VFD box fan stays on 100% of the time as long as it's plugged in are both poor design decisions in my opinion. I wasn't expecting this from a "high quality" Taiwanese machine.
Click to expand...

I too am disappointed at the lack of engineering in these aspects. It was what I was trying to avoid by buying a higher quality machine. These oversites are exactly what I think of when I think of Chinese machines.

Not to mention, the one shot lube system isn't plumbed into the X and Y lead screws from the factory. Just totally left out. Defeats the purpose of a one shot if I still have to manually lube 2 of the lead screws.

I haven't looked too closely, but I also believe the way tubing only lubricates the flat surfaces of the ways, and doesn't get any oil to the dovetail side.

Its been a lot of work getting the mill up to snuff. I was planning on buying one of their 1236T or 1340GT, but I wonder if I should buy the southbend heavy 10 for better quality. I don't need the extra capacity of the PM lathes, I'm just trying to get a well engineered quality machine out of the box.
 
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ahazi said:
For improving the noise performance of PCs in the late 80's I installed a thermostatic fan speed control device inside the PC power supply that based on the outgoing air temperature will adjust the fan speed. This is now standard feature in any computer.

I looked up for similar devices and I found the following 2 on eBay:

for 2 pin connector - https://www.ebay.com/itm/383949048898

for 4 pin connector - https://www.ebay.com/itm/382653081487

These might help with the VFD fan needlessly running at full speed .

Ariel
Click to expand...
ah, very cool solution... I might give this a try!
 
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