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Member postings for Trevor Drabble

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

Thread: How to machine an ellipse
16/07/2018 12:26:02

The turning of an ellipse is a regular feature of ornamental turning , and is usually done using a Holtzapffel Ellipse chuck or similar . Search the above terms to yield a wealth of information .

Thread: Macgregor digimac transmitter receiver crystals 3
16/07/2018 01:13:33

Ripmax sell 27Mhz crystals , which are available from many model shops . Their web page lists local suppliers .

Thread: Electronics assistance - reduction of output DC voltage
22/06/2018 16:33:10

Component Shop may even suggest 2 of these units connected in parallel and fed through a P103 Power Board ( £14.50 ) , which is available from their associate company , Action Electronics . Though since I am not electronically minded this may not be feasable .Trevor

22/06/2018 15:04:44

May I suggest you speak with Component Shop ( 01248 719353 ) . They produce 2 high power voltage reducers ( 10.5v/40v or 16/40v input) each of which will easily give you the 3 volts and will handle up to 7 amps (8amps with addition ventilation ) and they only cost £8.95 each . They may even be able to supply higher capacity units to order . Hope this helps . Trevor

Thread: Groz metal Bender
18/06/2018 18:05:58

The quality of my Groz is absolute rubbish . As soon as I tried to work it with anything of substance both the rack and the clamp plate bent so easily that it went straight back in box , where it has ostensibly remained ever since . Must get round one of these days to slinging it into the scrap bin .

Thread: Brakes..?
07/05/2018 08:46:03

In the past I have found Mashlin Friction of Sheffield very helpful . I have no connection with the company .

Trevor.

Thread: Bridgeport Mill - Convert to 240v Single Phase
26/04/2018 23:48:57

I would suggest you also talk with Direct Drives on 01623 720710 . They also have a useful web page . I have no connection with the company .

Trevor .

Thread: Queen street mill,Burnley- worth a trip
14/04/2018 13:43:28

GREAT . On my 120 mile return visit just before they closed , bought some of their calico cloth and it's EXCELLENT. Can't wait for them to re-open so I can purchase some more and take more pictures of this wonderful mill .

Trevor.

Thread: Quorn Castings
24/03/2018 15:16:18

I have for sale ( when I sort them out ) a complete set of unused Quorn castings , thread milled coloum , Parvalux motor ,drawings , book and grinding wheels from MES from 2005 .

Neil , If you feel this in wrong place.please move to classifieds .

Trevor.

Thread: Plain bearing materials
13/03/2018 22:53:57

Martin , In that case , are there any suitable downloads available from any of the leading bearing manufacturer's web sites ?

Trevor.

13/03/2018 22:18:13

Martin , Workshop Practice book No 40 entitled Bearings is a good starting point and is available from Chronos amongst others .

Trevor.

Thread: 3" Allchin Model
13/03/2018 13:46:08

Matt, John Rex Model Engineers at Pontefract used to supply the castings for this model , perhaps they still do . They therefore may be able to assist with drawings .

Trevor .

Thread: Is society becoming more stupid
08/03/2018 23:42:44

Another example of the "sue" culture ? Remember the American who successfully sued a motorhome manufacturer , who , as he was driving down the road , set the vehicle to automatic and then went into the back to make a drink and was then less than happy when the vehicle subsequently left the road and crashed ?

Thread: Bench grinders and their dust
26/02/2018 12:46:16

I cut 2 stubs into the bottom of the wheel guards on my Creusen for connection to my tool vacuum cleaner , from whose socket the grinder is fed , thus ensuring automatic start-up .

Thread: Maplin Electronics Stores
20/02/2018 13:34:46

Unfortunately , in essence I agree with previous posts in that even their in-store catalogue is worse than woeful . As a result , I asked the Rotherham store staff for help , but they also were useless . I did however eventually buy some items . When I later asked for a circuit , I was told one was not available . I then completed their feed-back form complaining at the abysmal situation that no circuit was available , only to receive a reply saying my comments had been moderated and would not be appearing on their web page comments section .

I subsequently sorted the circuit and bought the additional other components I required elsewhere . Can't help feeling it's a highly regretable situation .

Thread: Joining cast iron
05/02/2018 09:54:35

Martin , Do you have access to oxyacetylene equipment please ? Trevor.

Thread: sodium bisulphate as a pickle for copper?
28/01/2018 23:52:08

Fizzy , A bit off the wall , but would either a local chemical plating shop (as in say chromium plating ) or furniture/door stripping shop have any suitable chemicals available , and if so , could you "piggy back" with their orders to their suppliers ? Trevor.

Thread: Stuart Model delivery
25/01/2018 00:02:50

Steve , Have sent you a PM. Trevor.

Thread: looking for a suitable diesel/petrol engine for an 'unusual' model boat
21/01/2018 13:29:12

Mark , I assume you are looking for an ic engine in order to maintain authenticity , in which case my suggestion would be that since such engines used to be common place for driving small generators or pumps I would look in the adverts sections of such publications as Old Glory , Vintage Spirit or Stationary Engine . You may even consider placing a wanted advert in any of the aforementioned mags . Maybe there are equivalent French publications , or even fleabay ?

In the past I have seen such engines for sale at the farmers auction at Driffield Steam Rally , so maybe a similar local event may prove fruitfull ?

If you do go down the electrical route , there are some sound generators that can be programmed with your own sounds if those as supplied are not suitable . As an example , try looking at Harbor Models in USA . Not cheap , but am really pleased with mine . Also see Mtronics and Action Electronics . With regards to a motor , since you going to be swinging a large slow reving prop would suggeSt you need a high torque motor such as found on golf carts ( 12 volt ) or better still , as found on mobility scooters ( 24 volt ) . Maybe you have local repair shops for either of these ?

Hope you find abover helpful as initial options for consideration .

Trevor.

Thread: Spindle speed controler
19/01/2018 23:02:17

Carl , Have sent you a PM. Trevor.

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