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Gallery, Projects and General => How to's => Topic started by: krv3000 on October 28, 2012, 06:51:46 PM

Title: DTI new lense
Post by: krv3000 on October 28, 2012, 06:51:46 PM

hi all this is a haw to on making a lense for a dti my way this dti belongs to john bubelboost i piced this up from his on saterday in all the dti is in good order it just needed a new lense the furst thing i did was to brush the dile to remove as much of the loos muck as posibel then i kleend the lens with coten buds and spit DO NOT USE ANY KEMIKEL CLENERS EVEN SOPY WATER CAN REMOVE THE PRINT the next thing wat to make the lense i used acrilik for this i needed sumthing to form the dome for the lense this was dun by the use of a spray can and a mini jam jar i warmd up the plastick till it became soft then plast it over the end of the spray can then with the jam jar prest on to the plastick once formd i rufely cut the shape out then cuverd bothe fases with tape then started to shape the new lens to fit i removed the besel from the dti as to ade the fiting of the lense to do this i had to remove the retaning ring at the back of the clock to do this ther is a noch cut out of the besel on the back wher you put a pin in and lift out the clip  once all was dun refited the besel and gave the new lense a polish   right pics

Title: Re: DTI new lense
Post by: doubleboost on October 28, 2012, 06:58:13 PM

Bob
I am lost for words
Thanks mate
That clock was given to me by a retired machinist
I promised him i would look after it
John

Title: Re: DTI new lense
Post by: krv3000 on October 28, 2012, 07:17:34 PM

just wat till you see the box its gowing in

Title: Re: DTI new lense
Post by: Fredbare on October 29, 2012, 04:18:07 PM

Wonderful, and so well shown. Thanks

John

Title: Re: DTI new lense
Post by: BillTodd on October 29, 2012, 04:25:13 PM

Very impressed with the home brew crystal :)

New watch crystals are available; they're not too expensive, but may need some adjustment to fit a DTI


e.g.
http://www.ebay.co.uk/itm/Replacement-Acrylic-Domed-Watch-Glass-Crystal-27-8mm-32-4mm-/140862946012?pt=UK_Jewellery_Watches_WatchAccessories_SpareParts_SM&var=&hash=item20cc15fadc

http://www.ebay.co.uk/itm/36-5MM-to-45MM-D-TYPE-FLAT-BASE-DOMED-TOP-REPLACEMENT-WATCH-GLASS-CRYSTAL-C34-/310457507150?pt=UK_Jewellery_Watches_WatchAccessories_SpareParts_SM&var=&hash=item4848b59d4e

Bill

Title: Re: DTI new lense
Post by: Stilldrillin on October 29, 2012, 04:42:53 PM

Bob.
It seems, some people can do magic!  :bugeye:

Well done.  :clap: :clap: :thumbup:

David D

Title: Re: DTI new lense
Post by: Pete. on October 29, 2012, 05:09:33 PM

I made some by cutting a flat disc slightly bigger than the bezel hole, and pressing them in at the centre to force them into a dome shape.

Title: Re: DTI new lense
Post by: Rob.Wilson on October 29, 2012, 06:10:18 PM

clever twat , nice job Bob  :clap: :clap: :clap:

Rob

Title: Re: DTI new lense
Post by: krv3000 on October 29, 2012, 06:22:04 PM

thanks all for the coments

Title: Re: DTI new lense
Post by: stovebolt on October 30, 2012, 09:40:57 AM

After 4 years of use the 1" DI I use on my mini lathe has developed a cracked crystal  ( don't know how that could possibly happen, lol)   this is just what I needed.   :thumbup: :thumbup: :thumbup:

Thanks for posting.

Jim 

.   

Title: Re: DTI new lense
Post by: DaveH on October 30, 2012, 10:03:27 AM

Good one Bob  :bow: :thumbup: :clap:
 :beer:
DaveH

Title: Re: DTI new lense
Post by: AussieJimG on October 30, 2012, 12:09:53 PM

Thanks Bob,I have a dti with a cracked crystal too. And now that you have shown me how to repair it, I will do so.

Jim

Title: Re: DTI new lense
Post by: fixerup on October 30, 2012, 01:07:26 PM

Nice repair.
I was given a intrepid test indicator a few years ago. It was missing the lense. I did not have any plastic stock, so I took a small plastic box for the donor material and turn the disc to size and then use a very small amount of glue to keep it fixed. I sure wish I had seen your lense bending technique before that was a very slick idea. It make it look original. Mine looks like it been repaired.  :doh:
Take for posting!
Phil

Title: Re: DTI new lense
Post by: millwright on October 30, 2012, 03:50:11 PM

Wouldnt have thought about doing that Bob. Well done looks great.   :beer:  have to look at mine now and have a go myself, how thick was the acrylic?
John

Title: Re: DTI new lense
Post by: krv3000 on October 31, 2012, 06:45:14 PM

hi all the acryic is 1.5mm thick

Title: Re: DTI new lense
Post by: NickG on October 31, 2012, 07:01:04 PM

 :bugeye: It looks like new, or better. Amazing talent  :thumbup:

Title: Re: DTI new lense
Post by: jb3cx on November 01, 2012, 03:07:11 AM

Nice job bob.i think i have a few that need new lenses in them.i will rake them out for you.and drop them off at the weekend.i was going to chuck  them out.but i guess you can make good use of them,got some other junk for you as well,went to the skipsto dump some rubbish,and came back with more than i went with,it all look like it has been made by an apprentice as test projects,center
gauge.tool makers vice,machining jacks,ect.just surface rust on them
peter

Title: Re: DTI new lense
Post by: krv3000 on November 01, 2012, 06:47:52 PM

hi peter that will be brill it will be good to see you a gane

Title: Re: DTI new lense
Post by: dsquire on December 15, 2012, 02:00:16 PM

krv3000

For some reason I missed this one. Now that I have found it I can't pass by without saying how clever you are to fix it up better than new at little cost. You always seem to come up with a way to fix something that most of us would pass by. Thanks for sharing that with us.

Cheers  :beer:

Don

Title: Re: DTI new lense
Post by: raynerd on December 15, 2012, 03:28:36 PM

Don has also just brought this to my attention.

Just amazing - I never even considered a replacement crystal could be hand made!!!  :drool: :clap:

Chris

Title: Re: DTI new lense
Post by: doubleboost on December 15, 2012, 04:50:57 PM

Hi
Lads
I had a visit from Bob today (krv3000)
He brought my DTI back complete with its new face  :beer: :beer: :beer:
The repair on the clock is first class
But more than that , He has made a nice fitted case for it  :bugeye: :bugeye: :bugeye: :bugeye:
This is something i will always treasure
Thanks Mate
(http://i261.photobucket.com/albums/ii63/john970s0/IMG_4568.jpg)




(http://i261.photobucket.com/albums/ii63/john970s0/IMG_4570.jpg)

(http://i261.photobucket.com/albums/ii63/john970s0/IMG_4572.jpg)

John

Title: Re: DTI new lense
Post by: Rob.Wilson on December 15, 2012, 05:11:32 PM

Cracking job Bob  :clap: :clap: :clap: :clap:

wonder if i have out bust I can give to Bob to fix John  :med:

Rob

Title: Re: DTI new lense
Post by: Stilldrillin on December 15, 2012, 05:32:51 PM

Aaawww..... John!  :bugeye:

That dti and box assembly is gorgeous!  :thumbup:

Blummin, WELL DONE Bob!  :clap: :clap:

David D

Title: Re: DTI new lense
Post by: raynerd on December 15, 2012, 06:22:11 PM

Nice one Bob! That is fab.

I`ve got a draw full of stuff I`ve broke over the last 4 years ....  :beer:   lol, Nice one Bob and bet you are well chuffed John!

Chris

Title: Re: DTI new lense
Post by: krv3000 on December 16, 2012, 11:37:23 AM

thanks all for the coments im glad you like it john and rob you no if thers out you wont fixing juts let me no i enjoy seeing once condemd tools up and working a gane and not left on a shelf to go rusty if any of the members  that have old dti.s or the like that they dont wont you can send them to me

Title: Re: DTI new lense
Post by: loply on December 16, 2012, 06:16:36 PM

Bob, how did you get the DTI writing on the plywood box?

Looks good,

Rich

Title: Re: DTI new lense
Post by: krv3000 on December 17, 2012, 03:04:14 PM

ooo that wood be teling no WH smiths do them ther transfer letering  all you do is rub the leter on by the use of a pencel then you can varnish over the top you can use car lacer but this is best sprade on in light cotes leev etch cote to dry well befor aplaying a nuther cote

Title: Re: DTI new lense
Post by: stirling lad on December 31, 2012, 11:40:53 PM

Thanks for the 'how to' Bob,
I'd been quoted £36 for a new glass which i thought was really good since that also included shipping the dti to and from America but i then saw your post and thought i'd try your method first...It worked a treat....Although it took a few attempts to make a piece without it getting to hot then making tiny bubbles in it..your instructions were excellent....
Thankyou, your cleverness... :bow: :bow: :thumbup: :mmr: :headbang:
 (http://i1101.photobucket.com/albums/g440/burky123/steadyeddie023.jpg)
...Mike...

Title: Re: DTI new lense
Post by: krv3000 on January 01, 2013, 02:49:13 PM

hi im glad you got the job dun it looks like new

Title: Re: DTI new lense
Post by: Meldonmech on January 13, 2013, 10:10:14 AM

                I do like to see a bit of ingenuity, a nice DTI brought back to life with skill and an odd bit of plastic. Nice box.

                                                          Well Done  David