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Member postings for petro1head

Here is a list of all the postings petro1head has made in our forums. Click on a thread name to jump to the thread.

Thread: Carbide Parting off tips
24/07/2020 18:37:34

Brill, thanks Jason

24/07/2020 17:59:26

Mine are square tips and leave a rag on the bit I have just parted off

I use the Arc Blade with the GTN tips

Can you buy GTN tips that are slightly angled so there is no rag?

Thread: Milling alluminium
24/07/2020 08:45:45

Brill, thanks

24/07/2020 08:35:55

Quite often i get a build of of alloy on the cutter and have to stop the job to remove the build up.

so would a dab of thread cutting oil help, or something else.

don't want to flood cool due to mess

Thread: Warco WM18 has arrived
01/07/2020 18:37:55

Still happy with it , yes

Very easy to dismantle

Because the gas ram sits along side the Z axis screw thread its just a bit fidly

Thread: Hermes Parcels
22/06/2020 16:59:52

MyHermes, worst even delivery company in the UK

So bad there is even a compalints group on Facebook

Complaints

Edited By petro1head on 22/06/2020 17:00:05

Thread: Wet\dry vacuum hose
05/05/2020 09:10:11

Yeh thought of that but I try to stick to ally

05/05/2020 08:02:01

As suggested, good old Google

Smooth bore

04/05/2020 17:55:52

Is it, did not know

04/05/2020 17:43:21

Use my vac for scarf however the corigted tube troops the swarm and blocks it

just wondering if anyone else has/had the problem and managed to find suitable smooth tube

Thread: WM18 or VMC
01/03/2020 14:31:57

Interesting comment, I suppose I could use 2 mills

i have recommended mine but he likes the look of the VMC so I said I would ask on here for unbiased oppinions.

01/03/2020 11:43:17

Sizes of part not massive. I think he more interested in strength, studyness and ability to cut reasonable size cuts

01/03/2020 07:38:40

Not for me, honest guv, but a pal of mine whoi is looking to buy a mill

He will mainly use it for making parts for a kit car he is bulding

Thread: WM18 - Broken it again :(
24/02/2020 12:27:12
Posted by oldvelo on 23/02/2020 17:49:51:

Just an Idea Plywood 10 mm thick say 120 mm x 120 mm bore a hole in the centre to fit over the motor bolt to the underside of the fan.

That sound like a cunning plan to me

23/02/2020 15:24:00
Posted by mgnbuk on 23/02/2020 15:12:01:

Could you introduce an internal baffle part way down your cover that would reduce the air blowing around the outside of the motor casing & force more of the airflow through it instead ?

Nigel B.

Well I suppose I could use a piece are cardboard

23/02/2020 11:32:17
Posted by mgnbuk on 23/02/2020 10:54:21:

On your machine the airflow needs to be through the motor, not over the casing - the heat is generated in the armature windings & they are what fails. I would look to removing the internal armature "fan" altogether to reduce resistance to airflow though the motor & duct the external fan airflow into the non-drive end near the brushgear. to maximise air through flow.

Nigel B.

So are you suggesting blowing down as opposed to sucking up

Re the fan I may invest in a better fan, the one I have runds at 1200rpm and 70cfm.  Noctua do one thats for industrial use ie servers, that runs at 3000rpm and 110cfm

Re ducting the gap between the top of the motor and the fan is 4mm so think ducting would prob not held and be a bugger to design

Edited By petro1head on 23/02/2020 11:35:07

23/02/2020 09:00:30
Posted by clogs on 23/02/2020 06:09:51:

I nearly bought a WM mill......

after reading this and other problems with the brand.......RATHER glad I didn't.....

with all the world sales I would have thought that the factory should have got it right by now.......

Overpriced and over comes to mind.......

I would not be so quick to dismiss the wm18. It’s a fab mill and any problems I have had have been down to my own fault not the product

22/02/2020 20:57:22

Tbh I suspect the fan is probably only a few mm from the top of the motor but will check

22/02/2020 20:29:00

Can't say I have ever run in reverse but a valid point.

So this is what I have done, 120mm Corsair 12v Fan (140 was just a tad too big) exhausting out at the top of the encloure and several 10mm holes at the bottom

motor enc fan mod 1.jpg

motor enc fan mod 2.jpg

I remembered I already have a 12v supply going to the Angle Eye LED around the quill so can tap into that. Jobs done

Edited By petro1head on 22/02/2020 20:31:11

22/02/2020 19:10:42

Had a look at the current setup.

Using a jos stick to see the flow of air, the fan is at the top of the motor and draws air from the bottom of the motor and exhausts out the top of the motor. However what is very telling is until the motor is spinning at about 900 there is little to no air being drawn in.

So basicall the motor is starved of air at low speed, just as you said. So I am going to route out a 120/140 dia 12v computer fan and mount that iside the cover with a suitable hole cut and suck air out. I am also going at add some holes at the bottom of the cover so more air can get in.

All I need to buy is a 12v supply for the fan

Edited By petro1head on 22/02/2020 19:11:12

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