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Member postings for Ian Parkin

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

Thread: Short drill or Spot / Centre drill first
07/07/2020 11:06:43

I would make your pegs first and experiment with drills in your material to get your required fit

make your pegs out of 3mm silver steel perhaps

rather than as you said making your pegs fit the holes...make the holes fit the pegs

Thread: Ac motor 3 wire
06/07/2020 15:17:37

Are you sure that the cap has 4 terminals? not 2 terminals with 2 conections on each terminal?

Edited By Ian Parkin on 06/07/2020 15:17:51

Thread: Butterfly Bolt or Thumb Screw
05/07/2020 18:10:36


if it lasts even 6 months replace the screw or the nut a bag of 10 wing nuts will last a lifetime...guaranteed

05/07/2020 17:02:20

The thing about my suggestion is that you dont wear out the female thread in your equipment

the bolt shaft is replaceable when it wears out as is the wing nut

05/07/2020 16:53:38


just run a m4 bolt into the thread after putting a wing nut on the bolt

then use the wing nut to tighten it up

the nut does the same job as the bolt head

05/07/2020 16:34:56


so you want to convert a blade locking screw that you use an allen key for to a finger lock?

use a m4 bolt as the post and use a m4 wing nut on it to use as the lock...if the wing nut or bolt wears out ...replace it...?

Thread: Parvalux motor
04/07/2020 13:37:17

Well assuming its the one i linked to the other day 5 amps is plenty

the motor will run fine on either of those PS

That motor is a PM ( permanent magnet ) motor so wont run on ac

Edited By Ian Parkin on 04/07/2020 13:42:03

04/07/2020 13:25:10

Or this style

04/07/2020 13:23:30

Such as

04/07/2020 13:00:51

Just get a 240v in 24dc SMPS ( switch mode power supply) off eBay you should only need a 5 amp

Thread: micro switch
01/07/2020 20:54:51


they are fitted in this piece of av equipment

and theres 7 of them fitted in each one

made in Germany in the 70’s and 80’s by kodak

its really tricky to retrofit new styles of switch

but as i said they all seem to lose the spring

they only carrying small currents at 24v

01/07/2020 13:12:43

Hmm lots availble but at high prices

Mouser came up trumps though at a reasonable price for 10 switches

but only shipping option  is £12 ( ouch)

Many thanks to Brian

Edited By Ian Parkin on 01/07/2020 13:14:31

01/07/2020 12:44:00

brilliant Brian

now to find some in stock somewhere

01/07/2020 12:31:55

Can anyone identify this micro switch ?

i have lots of these all faulty because the spring has done a runner

img_8301 (medium).jpg

Thread: Power feed for mill head
29/06/2020 19:21:11

Or this one will do

29/06/2020 19:16:35

This is the seller that i bought mine from

and in my first post i meant 1 rev per second not per minute

Thread: Thread identification
29/06/2020 19:13:53

Well its probably a m22.5 x1.0

big threads like that are made to suit the purpose so no standard form was used

Thread: Power feed for mill head
29/06/2020 14:03:38

Just search on eBay for parvalux motors with gearbox and the voltage you want

the gearbox is coaxial with these

but you can get right angled box’s too

Thread: whats this socket used for?
29/06/2020 13:36:01

I did wonder if that was the case but the projector it was fitted to has a motor running the minute you plug it in and the bulb on a switch

i cant imagine the motor would have liked running on reduced voltage but maybe it wasnt meant for this projector

Thread: Power feed for mill head
29/06/2020 13:17:17

dsc00854 (large).jpg

Very crude but works very well

a parvalux 24vdc motor with a big reduction gearbox runs at about 1 rpm

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