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Member postings for mal webber

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

Thread: Vickers Bl 8 inch Howitzer cannon of 1917
09/08/2020 09:47:08

One more from last postsmileyimg_20200809_001500.jpg

09/08/2020 09:45:40

Well managed to get that lump of bar stock to look something like the Howitzer elevating gear box, loads of filing and fettling and now I think it looks about right for an early version design, as I found out on the internet through pictures there are a few with slight differences ,couple of pictures below on how it turned out and how it will look on the trail.

Thanks Mal.img_20200808_233347.jpgimg_20200809_001147.jpgimg_20200809_001208.jpgimg_20200809_001251.jpgimg_20200809_001300.jpg

17/07/2020 00:34:47

Thanks Dom , short vid how the box turns 32/1 ratio quite happy with so far

VID 20200716 181948 Howitzer gear box try

16/07/2020 21:17:43

Thanks Adrian, did try and post a small video of it worked out but could not manage it somehow.


16/07/2020 19:03:00

Well got some shed time in the last week or so and now I have a functioning elevating gearbox ,loads more to be done to make look something like the Howitzer gearbox but getting there.

Thanks Mal.img_20200716_180204.jpgimg_20200716_180118.jpg

27/06/2020 20:02:32

Hello George, for the last couple of months with everything going on, I've not had a chance to work on the Howitzer but I am looking forward to starting back on the project end of next month.

Here are a couple of pictures on how far I got on the elevating gearbox before I stopped, still plenty to get done.

Thanks Mal.


25/03/2020 21:10:26

Thanks Jeff , most the bar will end up in the scrap bin ,I'm hoping that not all of it will laugh

25/03/2020 20:06:19

Hello all and I hope everyone is keeping safe,thanks Peter , managed to pick up a lump of stock bar today for the gearbox so next couple of weeks will be to remove metal and find it smiley


Edited By mal webber on 25/03/2020 20:27:02

Edited By mal webber on 25/03/2020 20:27:51

21/03/2020 10:27:30

Hi David, one of the gear cutters I had already and the small 30dp for the bevel gears i purchased from rdg,a hob was made for the worm gear and free hobbing in the lathe was used as described in Ivan Law's book. I would like to have a go at making my own involute cutters as there not cheap.


Edited By mal webber on 21/03/2020 10:33:12

21/03/2020 01:06:57

Couple more from last post.img_20200320_230438.jpgimg_20200320_230428.jpg

21/03/2020 00:54:42

Hello all in these difficult times hope all is well, well have been having problems with the mill so the Howitzer build came to a stop for a month or so but it's up and running again better than ever [ touch wood] after a few bearings being replaced, so it was back on to the Howitzer I decided the gears for the elevating gearbox would be next to have a go at. Now worm wheel and worm used in this gear box because of locking ability and reduction and bevel gears I have never tried making but spur gears I have, so after digesting Ivan Law's book on gears and gear cutting and reading up on this site I managed finally after a few c%^$ ups to cut some gears ,shafts are still to make and a gearbox to put it all in, few pic's below on how it's going.

Thanks Mal.


Edited By mal webber on 21/03/2020 01:09:45

Thread: Colchester student top speed problem
15/03/2020 01:16:19

HI Tony, first thing I would do is remove the headstock cover and have a look inside as you select through the gears [ not when it's running ] and see what's going on , some pictures as well so others will be able to help.


Thread: Ron's Jowitt Popett Valve Engine
08/03/2020 17:58:05

Just had a catch up on this thread Ron, looking very nice.


Edited By mal webber on 08/03/2020 17:59:04

Thread: Vickers Bl 8 inch Howitzer cannon of 1917
08/02/2020 20:28:06

Hello all,

Not getting much done on the Howitzer build lately and at this rate it's going to take a good while to finish, I have managed to make a couple of parts for the trail first one is the bracket that receives and locks the traveling lock bar ,second bracket is what the back of the top carriage attaches on and allowing it to slide the 8 degrees couple of pictures on how they look on the trail.

Thanks Mal.img_20200208_183942.jpgimg_20200208_183107.jpgimg_20200208_183817.jpgimg_20200208_183707.jpg

Thread: Colchester Student Mk1 Won't Start
25/01/2020 10:41:41

Hi Richard

With my student [3hp] using the pc 60 when all phase switches are on the machine hums but with just the first two on it runs with out any humming and runs good so does the mill [2hp] ,not sure why it hums with all switches on and not really concerned because both machines run well on the first two ,as for power loss the lathe and mill can take bigger cuts than i would ever want to do on a regular basis .

When you mention about the rotary converter and what size motor to decide on and after reading Ian's post why not just exchange your 1.5hp motor for a 3hp one which will run of the pc 60 , Richard I know nothing about 3phase electrics just going off what set up i have.

Watched a you tube vid on a guy doing a rotary conversion with a pc60 and in the end it would not start his machine and ended up plugging straight in the pc not sure what that was all about.

Easy DIY Rotary Phase Converter Build (Off Grid Three Phase Hydroelectric Power)


23/01/2020 21:32:40

Hi Richard,

just looked at the video and my MK 1.1/2 is the same except mine is harder to turn in the lower gear ,if anything a bit louder noise from the head stock but not much.


Thread: Vickers Bl 8 inch Howitzer cannon of 1917
22/01/2020 18:08:51

Thanks guy's , the part took a lot longer than I initially thought ,must be down to a cold workshoplaugh

Thread: Colchester Student Mk1 Won't Start
22/01/2020 18:00:30

Just a thought Richard cant you but one of the gear knobs in between gears like giving you a neutral and spin the chuck by hand so your just checking headstock for free turning.


Thread: Vickers Bl 8 inch Howitzer cannon of 1917
22/01/2020 00:06:22

Hell all,thought i would make the trail bracket which the traverse mechanism attaches to which also the 8 degrees sale is marked on, now this bracket sits on the trail at about a 10 degree angle so that when the Howitzer is sitting in the firing position both elevating and traversing gearboxes sit level this could be down to oil level in both boxes not 100% sure ,anyway decided to to make this part out of solid lots chips fettling and roughing it up a little to look like a cast part and this is what turned out couple of pics below.

Thanks Mal.


Thread: Colchester Student Mk1 Won't Start
19/01/2020 13:56:14

Still looking in on this thread Richard hopping you will get it sorted.


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