Dr.Al
Forum Supporter
- Messages
- 2,215
- Location
- Gloucestershire, UK
Are you calling me short?!About 6' slim build and dark hair.
Are you calling me short?!About 6' slim build and dark hair.
I did say about.Are you calling me short?!
The centre hole (also has a plastic sleeve in it to cushion it) was relatively easy compared with the two stop holes I re-positioned! Broke two 2.5s but they were Aldi specials! Cutting the bits off was PITA, had to resort to the Dremmel and not the trusty junior hacksaw Once through the hardening they filed quite well to shape.I once used a cheapo caliper for the manual Bridgeport but couldn't drill the bleeding thing even with a carbide drill, ended up welding a bit to the end
I'm not sure ±6" is a fair tolerance for a forum with this many machinists!I did say about.
Nice to have a standard I can work toI'm not sure ±6" is a fair tolerance for a forum with this many machinists!
Well not today but just before I collected the Centec.
Following on from @Hood putting a DRO on his tailstock I invalidated the Lidl guarantee
View attachment 292916
Then did a bit more to it, fitted a magnet from an old hard drive and made a clamp!
View attachment 292919
So it fits like this
View attachment 292917
View attachment 292918
Mate who makes fibreglass boat bits uses brown parcel tape then puts turtle wax on it as a releasing agentFinished my capstone mould...I guess. For tomorrow we cast!
Made up a square of 15mm copper to give a drip recess.
View attachment 293007
Currently got the copper glued to the timber with some blobs of CT1 and cable tied on whilst it sets:
View attachment 293006
I'm going to put a square of galv mesh in halfway through the pour. Got one piece of 25x25x2.5 enough for just one cap. Then some 12.5x12.5x1.5, enough for two. Not sure if the smaller mesh will be strong enough...
View attachment 293005
I was going to line the mould with say plastic sheet DPM. Just couldn't get it flat. Even tried ironing it with SWMBO's iron. I did put a fillet of silicone on all the internal edges and took it off with a Cramer Fugi tool. Guess I'll just brush the internal faces with vegetable oil?
The scale I got for the POS tailstock cost me £17 from Amazon, I see they are now £30 plus but I am sure if you keep an eye out they will be back to £17 at some point.I was planning a similar thing myself, a home-made DRO to fit to the mini-mill. Most of the cheapy calipers have a serial data output you can decode with an Arduino or similar and drive a big display. Anothet project on the to-do list...
My biggest concern would be drilling and fitting the guts of the caliper to the machine accurately enough.
Mate who makes fibreglass boat bits uses brown parcel tape then puts turtle wax on it as a releasing agent
not sure how that would get on with concrete?
Wax.Guess I'll just brush the internal faces with vegetable oil?
This one has a data out, unfortunately you would have to drill the case to get the cable out! Aldi ones have a cover over the data out . The length of the scales would be the limiting factor IMHO, mounting accurately I don't think would be a problem as long as you can attach /make brackets.I was planning a similar thing myself, a home-made DRO to fit to the mini-mill. Most of the cheapy calipers have a serial data output you can decode with an Arduino or similar and drive a big display. Anothet project on the to-do list...
My biggest concern would be drilling and fitting the guts of the caliper to the machine accurately enough.
I think he likes the parcel tape as its shiny and smoothI was considering using the couple of cheap rolls of duct tape I just bought from Lidl...
Soap oil is the official version, it stinks and it was the smell of my childhood (my dad was a shuttering joiner, he came home every day stinking of the stuff !!)Finished my capstone mould...I guess. For tomorrow we cast!
Made up a square of 15mm copper to give a drip recess.
View attachment 293007
Currently got the copper glued to the timber with some blobs of CT1 and cable tied on whilst it sets:
View attachment 293006
I'm going to put a square of galv mesh in halfway through the pour. Got one piece of 25x25x2.5 enough for just one cap. Then some 12.5x12.5x1.5, enough for two. Not sure if the smaller mesh will be strong enough...
View attachment 293005
I was going to line the mould with say plastic sheet DPM. Just couldn't get it flat. Even tried ironing it with SWMBO's iron. I did put a fillet of silicone on all the internal edges and took it off with a Cramer Fugi tool. Guess I'll just brush the internal faces with vegetable oil?
Tallow is also very good.Soap oil is the official version, it stinks and it was the smell of my childhood (my dad was a shuttering joiner, he came home every day stinking of the stuff !!)
My biggest concern would be drilling and fitting the guts of the caliper to the machine accurately enough.
Clingfilm works well with fibreglass, it might work well with concrete if it isn’t too fragileI was considering using the couple of cheap rolls of duct tape I just bought from Lidl...
It looks like the centre piece of a California Crisp making cocktail party .Finished my croquembouche.
View attachment 292992
Stands about 12" tall, it would have been bigger but I got a bit peckish while I was assembling.
I too like the idea of using a new metal caliper . For those with the carbon fibre ones would superglue on perfectly de painted , roughed & cleaned surfaces suffice ?I was planning a similar thing myself, a home-made DRO to fit to the mini-mill. Most of the cheapy calipers have a serial data output you can decode with an Arduino or similar and drive a big display. Anothet project on the to-do list...
My biggest concern would be drilling and fitting the guts of the caliper to the machine accurately enough.
What suprises me most is that the magnet doesn't interfere with the caliper. Great Idea.Well not today but just before I collected the Centec.
Following on from @Hood putting a DRO on his tailstock I invalidated the Lidl guarantee
View attachment 292916
Then did a bit more to it, fitted a magnet from an old hard drive and made a clamp!
View attachment 292919
So it fits like this
View attachment 292917
View attachment 292918